WO2014101270A1 - Method for preparing slow-release long-acting chlorine-based nitrogen potassium compound fertilizer - Google Patents
Method for preparing slow-release long-acting chlorine-based nitrogen potassium compound fertilizer Download PDFInfo
- Publication number
- WO2014101270A1 WO2014101270A1 PCT/CN2013/001246 CN2013001246W WO2014101270A1 WO 2014101270 A1 WO2014101270 A1 WO 2014101270A1 CN 2013001246 W CN2013001246 W CN 2013001246W WO 2014101270 A1 WO2014101270 A1 WO 2014101270A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- potassium
- compound fertilizer
- chlorine
- potassium compound
- powder
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Definitions
- the invention relates to a preparation method of a sustained-release long-acting chlorine-based potassium-potassium compound fertilizer. It is a compost that contains substances that affect the digestion of ammonium compounds or urea in the soil. Background technique
- Compound fertilizers with a chloride ion content of more than 3% are called chlorine-based compound fertilizers, because chlorine-based compound fertilizers have a negative impact on the growth of certain chlorine-repellent crops, and the concentration of chloride ions in the soil remains largely, which tends to cause soil compaction. Salinization and alkalization.
- Some compound fertilizer manufacturers use potassium sulfate or potassium chloride in potassium chloride to prepare so-called sulfur-based compound fertilizer when preparing compound fertilizer.
- the preparation process of the sulfur-based compound fertilizer is complicated, the production cost is high, and the selling price is also high, which increases the production cost of the agricultural product.
- Chlorine can enter plant cells by participating in photosynthesis of plants, regulating the osmotic pressure of plant cells and the initiation and closure of stomata, which is beneficial to water and nutrients. Absorption, improve its drought resistance, chloride ion promotes photosynthesis and fiber formation, and is especially suitable for fiber crops such as hemp; improve plant disease resistance, such as wheat total rot, stripe rust, corn stem stalk Sick and so on. Chloride ion can inhibit the nitrifying bacteria in the soil, delay the conversion rate of ammonium nitrogen to nitrate nitrogen, and effectively reduce the loss of nitrate nitrogen and denitrification, which is the long-lasting effect of nitrogen fertilizer.
- the stable ions in the plant cells of chlorine crops have a positive effect on the balance of intracellular stored ions and the absorption of nitrogen, phosphine, potassium, calcium, magnesium, silicon and other elements, which is conducive to the growth of plant stems and leaves.
- Less crops are chlorine-like crops such as: coconut, onion, spinach, celery, kale, etc.; strong chlorine-tolerant crops such as: beets, rice, millet, sorghum, wheat, eggplant, peas, chrysanthemums, etc.; Crops such as: cotton, soybeans, rapeseed, tomatoes, citrus, grapes, tea trees, green onions, dreams, etc.
- the application of chlorine based fertilizers is beneficial and harmless.
- chloride ions promote photosynthesis and fiber formation, and are particularly suitable for application to fiber crops such as hemp. Because chloride ions are necessary for hemp, it promotes fiber Tf and enhances the toughness of the fiber.
- Base fertilizers are particularly suitable for use as base fertilizers and top dressings.
- Chinese Patent No. 201110258689.4 discloses a melt biomass composite chlorine-based slow release fertilizer and a preparation method thereof, which are the prior invention patents of the inventors of the present application. Firstly, the high-tower granulated urea compound fertilizer granules are prepared by the high-tower granulating device, and then the urea composite fertilizer granules are once coated with paraffin wax and the surface of the modified zeolite powder is coated twice.
- the disadvantage is that the high tower granulation is performed. The investment cost of equipment is high. Paraffin is a non-renewable fossil resource and is not easily degraded in the soil.
- the high-tower granulated composite fertilizer product produced by the above preparation method has a poor sustained-release effect.
- the prior art coated controlled release fertilizer, endogenous controlled release fertilizer, stable controlled release fertilizer, biological inhibitor type controlled release fertilizer, the coated slow release material mostly uses sulfur or synthetic resin, wherein the sulfur film is easily broken, Moreover, it is easy to produce toxic and side effects on crops such as rice. Resin coatings are expensive and not easily degraded in the soil.
- the object of the present invention is to avoid the deficiencies in the prior art mentioned above, and to provide a good sustained release effect and high utilization rate of fertilizer efficiency, and the chlorine element in the compound fertilizer can fully play a role in crop growth, and the process is simple and the production cost is low. Lower, the coating material is easy to be degraded by microorganisms in the soil, which is beneficial to the preparation of long-acting long-acting chlorine-based potassium-potassium compound fertilizer for soil, atmosphere and water environment protection.
- the object of the present invention can be achieved by the following measures:
- the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the invention is characterized in that firstly, the chlorine-based nitrogen-potassium compound fertilizer granule is manufactured, and then the chloro-based potassium-potassium compound fertilizer granule is subjected to primary coating of stearic acid and modified zeolite.
- the chlorine-based potassium-potassium compound fertilizer granules are made of the following raw materials in parts by weight:
- the stearic acid is coated once, and the amount of stearic acid is 0.6% ⁇ 1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer :
- the modified zeolite powder consists of the following raw materials in weight percent:
- Zinc stearate 1.1% ⁇ 2.5%
- the preparation method comprises the following steps:
- the amount of stearic acid used is 0.6% to 1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer prepared in the first step, and the coating method is as follows:
- the coating is accurately metered with stearic acid according to the formula, it is put into the stearic acid melting tank and heated to a molten state for use; b.
- the chlorine-based nitrogen-potassium compound fertilizer granule prepared in the first step is accurately measured, and the molten stearic acid prepared in the step (a) is subjected to extragranular spray coating in a drum type mixing granulator to form an outer surface of the composite fertilizer granule.
- hot air drying, room temperature air cooling, standby; process conditions are as follows:
- Hot air drying temperature is not higher than 80 ° C
- the cooling air temperature is not higher than 50 ° C ;
- zeolite powder 97.5% ⁇ 98.9% raw material ratio accurately weigh the raw materials, mix evenly, grind the powder, control the fineness of the powder over 120 mesh sieve, spare ;
- the amount of the mixed powder prepared in the step a is controlled to be 0 ⁇ 1 5 kg per 1 kg of the chlorine-based nitrogen-potassium compound fertilizer powder;
- the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the invention firstly produces chlorine-based nitrogen-potassium fertilizer fertilizer particles, and then the chlorine-based potassium-potassium compound fertilizer particles are once coated with the stearic acid and the modified boiling powder subsurface Made from powder. Mainly profit After mixing the urea melt with ammonium chloride and potassium chloride, the components of the composite fertilizer are mixed and granulated by a conventional granulator, and the production process is simple and environmentally friendly, thereby avoiding high investment cost of the high tower granulation equipment. The drawbacks.
- the coating material used in the invention can be degraded under the action of soil microorganisms, and stearic acid is easily decomposed to form C0 2 and 3 ⁇ 40 under the action of soil microorganisms, thereby avoiding environmental pollution of the coating material, saving fossil resources and contributing to ecology. balance.
- the object of the invention can also be achieved by the following measures:
- the chlorine-based potassium-potassium compound fertilizer granules are prepared as follows by using the raw materials in parts by weight:
- the right amount of water is the preferred raw material ratio.
- the chlorine-based potassium-potassium compound fertilizer granule is prepared from the following raw materials in parts by weight:
- the right amount of water is a preferred technical solution.
- the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the present invention comprises the following steps:
- the preparation method comprises the following steps:
- the amount of stearic acid used is 1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer prepared in the first step.
- the coating method is as follows: a. Preparation of molten stearic acid
- the coating is accurately metered with stearic acid according to the formula, it is put into the stearic acid melting tank, heated to a molten state, and used; b.
- the chlorine-based nitrogen-potassium compound fertilizer granule prepared in the first step is accurately measured, and the molten stearic acid prepared in the step (a) is subjected to extragranular spray coating in a drum type mixing granulator to form an outer surface of the composite fertilizer granule.
- hot air drying, room temperature air cooling, standby; process conditions are as follows:
- the raw materials were accurately weighed, mixed evenly, ground and powdered, and the fineness of the powder was controlled to pass through a 120 mesh sieve.
- the amount of the mixed powder prepared in the step a is controlled to 10 kg per 1000 kg of the chlorine-based nitrogen-potassium compound fertilizer particle;
- the application of the sustained-release long-acting long-acting chlorine-based potassium-potassium compound fertilizer prepared by the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to the present invention is characterized in that it is applied to fiber crops such as hemp, coconut, onion, spinach, celery, Cabbage, beet, rice, millet, sorghum, wheat, eggplant, peas, chrysanthemum, cotton, soybean, rapeseed, tomato, citrus, grape, tea tree, green onion, radish, applied as base fertilizer and top dressing.
- fiber crops such as hemp, coconut, onion, spinach, celery, Cabbage, beet, rice, millet, sorghum, wheat, eggplant, peas, chrysanthemum, cotton, soybean, rapeseed, tomato, citrus, grape, tea tree, green onion, radish.
- the application of the sustained-release long-acting long-acting chlorine-based potassium-potassium compound fertilizer prepared by the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to the present invention is characterized in that it is mixed with various commercially available phosphate fertilizers or compound phosphate fertilizers. To adapt to the needs of different crops and different soils for nitrogen, phosphorus and potassium nutrients,
- the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the invention has the following positive effects compared with the prior art: 1. It provides a good sustained-release effect, high fertilizer efficiency utilization rate, and chlorine element energy in the compound fertilizer. It plays a full role in the growth of crops, the process is simple, the production cost is low, and the coating material is easily degraded by microorganisms in the soil, which is beneficial to the soil, Preparation method of sustained-release long-acting chlorine-based potassium-potassium compound fertilizer for atmospheric and water environmental protection.
- the prepared sustained-release long-acting chloro-based potassium compound fertilizer is widely used for fiber crops such as hemp, coconut, onion, spinach, celery, cabbage, beet, rice, millet, sorghum, wheat, eggplant, pea, chrysanthemum , cotton, soybeans, rapeseed, tomatoes, citrus, grapes, tea trees, green onions, radishes, applied as base fertilizer and top dressing.
- fiber crops such as hemp, coconut, onion, spinach, celery, cabbage, beet, rice, millet, sorghum, wheat, eggplant, pea, chrysanthemum , cotton, soybeans, rapeseed, tomatoes, citrus, grapes, tea trees, green onions, radishes, applied as base fertilizer and top dressing.
- the prepared sustained-release long-acting chlorine-based potassium-potassium compound fertilizer is mixed with various commercially available phosphate fertilizers or compound phosphate fertilizers. To adapt to the needs of different crops and different soils for NPK nutrients,
- the coating material can be degraded under the action of soil microorganisms, avoiding the pollution of the coating material to the soil environment.
- the sustained release effect is good and the fertilizer utilization rate is high. Suitable for a variety of applications.
- the average increase in fertilizer utilization rate is 1.1% ⁇ 19.3%, and the average yield increase for food crops is 5.7% ⁇ 1.3%, and the average yield increase for fruit trees and vegetables is 13.1 ⁇ 27.9%.
- a sustained-release long-acting chlorine-based potassium-potassium compound fertilizer prepared according to the following procedure
- urea 45 parts by weight of urea was heated and melted, and then 12 parts by weight of ammonium chloride and 35 parts by weight of potassium chloride were added and uniformly mixed, and 8 parts by weight of a granulating agent was added thereto in an appropriate amount of water.
- the granulation aid is composed of 60% to 70% of bentonite and 40% to 30% of bauxite powder;
- the modified zeolite powder consists of the following raw materials in weight percent:
- Zinc stearate 1.1% ⁇ 2.5%
- the amount of stearic acid used is 1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer prepared in the first step.
- the coating method is as follows: a. Preparation of molten stearic acid
- the coating is accurately metered with stearic acid according to the formula, it is put into the stearic acid melting tank and heated to a molten state for use; b.
- the chlorine-based nitrogen-potassium compound fertilizer granule prepared in the first step is accurately measured, and the molten stearic acid prepared in the step (a) is subjected to extragranular spray coating in a drum type mixing granulator to form a composite fertilizer granule.
- Hot air drying, room temperature air cooling, standby; process conditions are as follows:
- Hot air drying temperature is not higher than 80 ° C
- the cooling air temperature is not higher than 50 ° C ;
- the zeolite powder 97.5% ⁇ 98.9% of the raw material ratio, accurately weigh the raw materials, mix evenly, grind the powder, control the fineness of the powder over 120 mesh sieve, spare ;
- the amount of the mixed powder prepared in the step a is controlled to 10 to 15 kg per 1000 kg of the chlorine-based nitrogen-potassium compound fertilizer particle;
- Example 1 According to the method and the procedure of Example 1, according to the formulation of Table 1, a sustained-release long-acting chlorine-based potassium-potassium compound fertilizer was prepared.
- the obtained product particles have a rounded appearance and the product has no odor
- the sustained-release long-acting chlorine-based potassium-potassium compound fertilizers prepared in Examples 1 to 7 are suitable for use in fiber crops such as hemp, coconut, onion, spinach, celery, cabbage, beet, rice, millet, sorghum, wheat, eggplant. , peas, chrysanthemums, cotton, soybeans, rapeseed, tomatoes, citrus, grapes, tea trees, green onions, radishes, applied as base fertilizer and top dressing.
- fiber crops such as hemp, coconut, onion, spinach, celery, cabbage, beet, rice, millet, sorghum, wheat, eggplant. , peas, chrysanthemums, cotton, soybeans, rapeseed, tomatoes, citrus, grapes, tea trees, green onions, radishes, applied as base fertilizer and top dressing.
- the average fertilizer utilization rate is 11.1% ⁇ 19.3%, and the average yield increase for food crops is 5.7% ⁇ 17.3%, and the average yield increase for fruit trees and vegetables is 13.1 ⁇ 27.9%.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
- Glanulating (AREA)
Abstract
The present invention relates to a mixed fertilizer which contains substances influencing nitrification of ammonium compounds or urea in soil. Provided is a method for preparing a slow-release long-acting chlorine-based nitrogen potassium compound fertilizer. The method is characterized by first preparing chlorine-based nitrogen potassium compound fertilizer granules, and then conducting primary coating of stearic acid and secondary surface powder spreading of modified zeolite powder on the chlorine-based nitrogen potassium compound fertilizer granules, to obtain the slow-release long-acting chlorine-based nitrogen potassium compound fertilizer, wherein the chlorine-based nitrogen potassium compound fertilizer granules are prepared from the following raw materials in parts by weight: 30 to 60 parts of urea, 10 to 20 parts of ammonium chloride, 22 to 53 parts of potassium chloride, 7 to 11 parts of a granulating auxiliary agent, and a proper amount of water. The present invention provides a method for preparing a slow-release long-acting chlorine-based nitrogen potassium compound fertilizer, which has good slow-release effect and high fertilizer effectiveness and utilization as the chlorine element in the compound fertilizer can play a full role in the growth of crops; has simple process and low production cost; and is beneficial to protection of the soil, atmosphere, and water environment due to the fact that the coating material is easy to be degraded by microorganisms in soil. The compound fertilizer has good slow-release effect and high fertilizer utilization, and is applicable to various crops.
Description
缓释长效氯基氮钾复合肥料的制备方法 技术领域 Preparation method of sustained-release long-acting chlorine-based potassium-potassium compound fertilizer
本发明是一种缓释长效氯基氮钾复合肥料的制备方法。 属于含有影响铵化合物或尿素在 土壤中消化作用的物质的混合肥料。 背景技术 The invention relates to a preparation method of a sustained-release long-acting chlorine-based potassium-potassium compound fertilizer. It is a compost that contains substances that affect the digestion of ammonium compounds or urea in the soil. Background technique
氯离子的含量超过 3 %的复合肥称为氯基复合肥， 因为氯基复合肥料对某些忌氯作物的 生长存在负面影响， 而且氯离子在土壤中的集中大量残留， 易造成土壤板结、 盐化、 碱化。 Compound fertilizers with a chloride ion content of more than 3% are called chlorine-based compound fertilizers, because chlorine-based compound fertilizers have a negative impact on the growth of certain chlorine-repellent crops, and the concentration of chloride ions in the soil remains largely, which tends to cause soil compaction. Salinization and alkalization.
因此， 在部分人群中， 对于氯基肥料的施用， 存有技术偏见。 担心施用含氯化肥会对作 物产量和品质产生不良影响， ώ此因噎废食， 干脆拒绝施用氯基肥料。 对于肥料产业的发展 和农产品产量和品质的提高以及农民的收入都是得不偿失的事情。 Therefore, in some people, there is a technical bias in the application of chlorine-based fertilizers. It is feared that the application of chlorinated fertilizer will have an adverse effect on the yield and quality of the crop. Therefore, the use of chlorine-based fertilizer is simply refused due to waste. The development of the fertilizer industry and the improvement of the output and quality of agricultural products and the income of farmers are not worth the loss.
有些复合肥生产企业在制备复合肥料时， 产品中的钾源选用硫酸钾， 或者脱去氯化钾中 的氯离子， 制成所谓硫基复合肥。 硫基复合肥制备工艺复杂， 生产成本高， 售价也较高， 增 加了农产品的生产成本。 Some compound fertilizer manufacturers use potassium sulfate or potassium chloride in potassium chloride to prepare so-called sulfur-based compound fertilizer when preparing compound fertilizer. The preparation process of the sulfur-based compound fertilizer is complicated, the production cost is high, and the selling price is also high, which increases the production cost of the agricultural product.
实际上， 氯是植物生长必须的七种微量元素之一， 氯元素可以通过参与植物的光合作用 进入植物细胞， 起到调节植物细胞的渗透压和气孔的启动与闭合， 有利于水分和养分的吸收， 提高其抗旱能力， 氯离子有促进光合作用和纤维形成等作用， 对麻类等纤维作物施用尤为适 宜； 提高植物的抗病能力， 如小麦的全蚀病、 条锈病， 玉米的茎枯病等。 氯离子对土壤中的 硝化细菌有抑制作用， 能延缓铵态氮向硝态氮的转化速度， 从而有效减少硝态氮流失和反硝 化损失， 是氮肥的肥效持久。 再说， 氯作物植物细胞中的稳定离子， 对细胞内储存离子的平 衡以及对氮、 膦、 钾、 钙、 镁、 硅等元素的吸收都有积极作用， 有利于促进植物茎叶的生长 有不少作物是喜氯作物如： 椰子、 洋葱、 菠菜、 芹菜、 甘蓝等； 耐氯较强的作物如： 甜 菜、 水稻、 谷子、 高粱、 小麦、 茄子、 豌豆、 菊花等； 还有耐氯中等的作物如： 棉花、 大豆、 油菜、 番茄、 柑橘、 葡萄、 茶树、 大葱、 梦卜等。 施用氯基肥料都是有益无害的。 In fact, chlorine is one of the seven trace elements necessary for plant growth. Chlorine can enter plant cells by participating in photosynthesis of plants, regulating the osmotic pressure of plant cells and the initiation and closure of stomata, which is beneficial to water and nutrients. Absorption, improve its drought resistance, chloride ion promotes photosynthesis and fiber formation, and is especially suitable for fiber crops such as hemp; improve plant disease resistance, such as wheat total rot, stripe rust, corn stem stalk Sick and so on. Chloride ion can inhibit the nitrifying bacteria in the soil, delay the conversion rate of ammonium nitrogen to nitrate nitrogen, and effectively reduce the loss of nitrate nitrogen and denitrification, which is the long-lasting effect of nitrogen fertilizer. Furthermore, the stable ions in the plant cells of chlorine crops have a positive effect on the balance of intracellular stored ions and the absorption of nitrogen, phosphine, potassium, calcium, magnesium, silicon and other elements, which is conducive to the growth of plant stems and leaves. Less crops are chlorine-like crops such as: coconut, onion, spinach, celery, kale, etc.; strong chlorine-tolerant crops such as: beets, rice, millet, sorghum, wheat, eggplant, peas, chrysanthemums, etc.; Crops such as: cotton, soybeans, rapeseed, tomatoes, citrus, grapes, tea trees, green onions, dreams, etc. The application of chlorine based fertilizers is beneficial and harmless.
尤其是氯离子有促进光合作用和纤维形成等作用， 对麻类等纤维作物施用尤为适宜。 因 为氯离子对麻类作为所必需的， 它能促进纤维发 Tf， 增强纤维的韧力。 基肥料特别适合于 作为基肥和追肥施用。 In particular, chloride ions promote photosynthesis and fiber formation, and are particularly suitable for application to fiber crops such as hemp. Because chloride ions are necessary for hemp, it promotes fiber Tf and enhances the toughness of the fiber. Base fertilizers are particularly suitable for use as base fertilizers and top dressings.
氯基肥料相对于硫基肥料来说， 制造成本低， 销售价格也明显低于硫基肥料。 对于增加 农民收入减少负担将会发挥积极作用。 因此丌发优质氯基肥料是人们所期待的。
尿素是含氮高、 肥效快、 用量大的优质氮肥。 但是， 尿素在使用过程中， 容易通过挥发、 淋溶、 分解和径流等途径流失， 导致肥效利用率不高， 据统计， 当季利用率只有 30 %左右， 这不仅造成了化肥的浪费， 而且对于大气、 水体土壤等人类赖以生存的环境造成污染。 现有 技术中的氯基复合肥料养分利用率仅为 25%— 35%， 其中氮肥的利用率不足 30%, 损失特别 严重。 Compared with sulfur-based fertilizers, chlorine-based fertilizers have low manufacturing costs and are sold at a significantly lower price than sulfur-based fertilizers. It will play a positive role in increasing the burden of farmers' income reduction. Therefore, it is expected that high-quality chlorine-based fertilizers will be produced. Urea is a high-quality nitrogen fertilizer with high nitrogen content, fast fertilizer efficiency and large dosage. However, in the process of using urea, it is easy to be lost through volatilization, leaching, decomposition and runoff, resulting in low efficiency of fertilizer efficiency. According to statistics, the utilization rate in the current season is only about 30%, which not only causes waste of fertilizer, but also It pollutes the environment in which humans depend on the atmosphere, water and soil. In the prior art, the nutrient utilization rate of the chlorine-based compound fertilizer is only 25% to 35%, and the utilization rate of the nitrogen fertilizer is less than 30%, and the loss is particularly serious.
如何使在复合肥料中的氯元素在促进农作物生长中发挥积极作用， 既能优化、 提高氯基 复合肥料的利用率， 又能避免其对作物生长和土壤环境的不利影响是人们期待解决的课题。 How to make the chlorine element in the compound fertilizer play an active role in promoting the growth of crops, can not only optimize and improve the utilization rate of chlorine-based compound fertilizer, but also avoid its adverse effects on crop growth and soil environment. .
中国专利 201110258689.4公开了一种熔体生物质复合氯基缓释肥料及其制备方法， 是本 申请的发明人的在先发明专利。 首先经高塔造粒装置制备高塔造粒尿素复合肥料颗粒， 然后 将尿素复合肥料颗粒进行石蜡一次包覆和改性沸石粉表面二次包覆制得， 其不足之处在于高 塔造粒设备投资费用高， 石蜡是不可再生的化石资源， 且在土壤中不易降解。 采用上述制备 方法生产的高塔造粒复合肥料产品， 缓释效果欠佳。 Chinese Patent No. 201110258689.4 discloses a melt biomass composite chlorine-based slow release fertilizer and a preparation method thereof, which are the prior invention patents of the inventors of the present application. Firstly, the high-tower granulated urea compound fertilizer granules are prepared by the high-tower granulating device, and then the urea composite fertilizer granules are once coated with paraffin wax and the surface of the modified zeolite powder is coated twice. The disadvantage is that the high tower granulation is performed. The investment cost of equipment is high. Paraffin is a non-renewable fossil resource and is not easily degraded in the soil. The high-tower granulated composite fertilizer product produced by the above preparation method has a poor sustained-release effect.
现有技术中的包膜控释肥， 内质型控释肥， 稳定性控释肥， 生物抑制剂型控释肥， 其包 膜缓释材料多采用硫磺或合成树脂， 其中硫磺膜易破碎， 而且对水稻类等作物易产生毒害副 作用。 树脂包膜价格昂贵而且不易在土壤中降解。 The prior art coated controlled release fertilizer, endogenous controlled release fertilizer, stable controlled release fertilizer, biological inhibitor type controlled release fertilizer, the coated slow release material mostly uses sulfur or synthetic resin, wherein the sulfur film is easily broken, Moreover, it is easy to produce toxic and side effects on crops such as rice. Resin coatings are expensive and not easily degraded in the soil.
现有技术中缓释长效氯基氮钾复合肥料的制备方法还不多见。 发明内容 The preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer in the prior art is still rare. Summary of the invention
本发明的目的在于避免上述现有技术中的不足之处， 而提供一种缓释效果好， 肥效利用 率高， 复合肥料中的氯元素能在农作物生长中充分发挥作用， 工艺简单， 生产成本较低， 包 膜材料易于被土壤中的微生物降解， 有益于土壤、 大气及水体环境保护的缓释长效氯基氮钾 复合肥料的制备方法。 The object of the present invention is to avoid the deficiencies in the prior art mentioned above, and to provide a good sustained release effect and high utilization rate of fertilizer efficiency, and the chlorine element in the compound fertilizer can fully play a role in crop growth, and the process is simple and the production cost is low. Lower, the coating material is easy to be degraded by microorganisms in the soil, which is beneficial to the preparation of long-acting long-acting chlorine-based potassium-potassium compound fertilizer for soil, atmosphere and water environment protection.
本发明的目的可以通过如下措施来达到： The object of the present invention can be achieved by the following measures:
本发明的缓释长效氯基氮钾复合肥料的制备方法， 其特征在于首先制造氯基氮钾复合肥 料颗粒，然后将氯基氮钾复合肥料颗粒进行硬脂酸一次包覆和改性沸石粉二次表面扑粉制得， 其中： 所述氯基氮钾复合肥料颗粒 如下以重量份数计的原料制成： The preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the invention is characterized in that firstly, the chlorine-based nitrogen-potassium compound fertilizer granule is manufactured, and then the chloro-based potassium-potassium compound fertilizer granule is subjected to primary coating of stearic acid and modified zeolite. Prepared by powder secondary surface powder, wherein: the chlorine-based potassium-potassium compound fertilizer granules are made of the following raw materials in parts by weight:
尿素 30〜60 Urea 30~60
氯化钹 10〜20 Barium chloride 10~20
氯化钾 22〜53 Potassium chloride 22~53
造粒助剂 7〜1 1 Granulation aids 7~1 1
水 适量
〜 〜 Water quantity ~ ~
所述硬脂酸一次包覆， 硬脂酸用量为氯基氮钾复合肥料颗粒质量的 0.6 %〜1.2 % : The stearic acid is coated once, and the amount of stearic acid is 0.6%~1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer :
所述改性沸石粉由如下以重量百分数计的原料组成： The modified zeolite powder consists of the following raw materials in weight percent:
硬脂酸锌 1 .1 %〜2.5% Zinc stearate 1.1%~2.5%
沸石粉 97.5%〜98.9% Zeolite powder 97.5%~98.9%
其制备方法包括如下歩骤： The preparation method comprises the following steps:
① . 氯基氮钾复合肥料颗粒的制备 1. Preparation of chloro-based potassium compound fertilizer granules
首先把尿素 30〜60重量份加热熔融后，加入氯化铵 10〜20重量份和氯化钾 22〜53重量 份混合均勾， 加入造粒剂 7〜10重量份， 水适量。 利用传统造粒机将所述复合肥料各组分混 合造粒， 备用； First, 30 to 60 parts by weight of urea is heated and melted, and then 10 to 20 parts by weight of ammonium chloride and 22 to 53 parts by weight of potassium chloride are added and mixed, and 7 to 10 parts by weight of the granulating agent is added thereto, and the amount of water is appropriate. Mixing and granulating the components of the composite fertilizer with a conventional granulator;
② . .硬脂酸一次包覆 2 . Stearic acid once coated
硬脂酸的用量为歩骤①制备的氯基氮钾复合肥料颗粒质量的 0.6 %〜1.2 %， 包覆方法如 下： The amount of stearic acid used is 0.6% to 1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer prepared in the first step, and the coating method is as follows:
a. .熔融硬脂酸的制备 a. Preparation of molten stearic acid
包膜用硬脂酸经按照配方准确计量后， 投入硬脂酸熔融槽中， 加热至熔融状态， 备用； b. .包覆 After the coating is accurately metered with stearic acid according to the formula, it is put into the stearic acid melting tank and heated to a molten state for use; b.
按照配方准确计量歩骤①制备的氯基氮钾复合肥料颗粒， 用歩骤 a制备的熔融硬脂酸， 在滚筒式混合造粒机中进行颗粒外喷涂包覆，使复合肥料颗粒外表面形成尽可能均匀的涂层， 热风干燥、 室温风冷却， 备用； 工艺条件如下： According to the formula, the chlorine-based nitrogen-potassium compound fertilizer granule prepared in the first step is accurately measured, and the molten stearic acid prepared in the step (a) is subjected to extragranular spray coating in a drum type mixing granulator to form an outer surface of the composite fertilizer granule. As uniform coating as possible, hot air drying, room temperature air cooling, standby; process conditions are as follows:
热风干燥温度不高于 80°C Hot air drying temperature is not higher than 80 ° C
冷却气流温度不高于 50°C ; The cooling air temperature is not higher than 50 ° C ;
③ . 改性沸石粉二次表面扑粉 3. Modified zeolite powder secondary surface powder
a. 扑粉用混合粉体的制备 a. Preparation of powder for mixing powder
按照硬脂酸镁 1.1 %〜2.5%， 沸石粉 97.5%〜98.9%的原料配比， 分别准确称取原料各组 分， 混合均匀， 研磨制粉， 控制粉体细度过 120目筛， 备用； According to the magnesium stearate 1.1%~2.5%, zeolite powder 97.5%~98.9% raw material ratio, accurately weigh the raw materials, mix evenly, grind the powder, control the fineness of the powder over 120 mesh sieve, spare ;
b. 扑粉 b. Powder
将歩骤 a制备的混合粉体用量控制在每 1 000 kg氯基氮钾复合肥料颗粒扑粉】0〜1 5 kg; The amount of the mixed powder prepared in the step a is controlled to be 0~1 5 kg per 1 kg of the chlorine-based nitrogen-potassium compound fertilizer powder;
⑥.筛分、 计量、 质量检验， 合格后包装， 制得缓释长效氯基氮钾复合肥料； 所得产品颗 粒外观圆润， 产品无异味。 6. Screening, metering, quality inspection, and post-qualification packaging, to produce sustained-release long-acting chlorine-based potassium-potassium compound fertilizer; the obtained product particles have a round appearance and no odor.
本发明的缓释长效氯基氮钾复合肥料的制备方法， 首先制造氯基氮钾 合肥料颗粒， 然 后将氯基氮钾复合肥料颗粒进行硬脂酸一次包覆和改性沸 粉 次表面扑粉制得。 主要是利
用尿素熔融液与氯化铵、 氯化钾混合后， 利用传统造粒机将所述复合肥料各组分混合造粒， 生产工艺简便， 有益环境保护， 避免了高塔造粒设备投资费用高的弊端。 The preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the invention firstly produces chlorine-based nitrogen-potassium fertilizer fertilizer particles, and then the chlorine-based potassium-potassium compound fertilizer particles are once coated with the stearic acid and the modified boiling powder subsurface Made from powder. Mainly profit After mixing the urea melt with ammonium chloride and potassium chloride, the components of the composite fertilizer are mixed and granulated by a conventional granulator, and the production process is simple and environmentally friendly, thereby avoiding high investment cost of the high tower granulation equipment. The drawbacks.
本发明采用的包膜材料可以在土壤微生物作用下降解， 硬脂酸在土壤微生物的作用下易 于分解生成 C02 和 ¾0，避免了包膜材料对环境的污染，节约了化石资源，有利于生态平衡。 The coating material used in the invention can be degraded under the action of soil microorganisms, and stearic acid is easily decomposed to form C0 2 and 3⁄40 under the action of soil microorganisms, thereby avoiding environmental pollution of the coating material, saving fossil resources and contributing to ecology. balance.
本发明的目的还可以通过如下措施来达到： The object of the invention can also be achieved by the following measures:
本发明的缓释长效氯基氮钾复合肥料的制备方法， 所述氯基氮钾复合肥料颗粒 如下以 重量份数计的原料制成： In the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the present invention, the chlorine-based potassium-potassium compound fertilizer granules are prepared as follows by using the raw materials in parts by weight:
尿素 30〜45 Urea 30~45
氯化铵 10〜20 Ammonium chloride 10~20
氯化钾 30〜50 Potassium chloride 30~50
造粒助剂 8〜！ 0 Granulation aids 8~! 0
水 适量 是优选的原料配比。 The right amount of water is the preferred raw material ratio.
本发明的缓释长效氯基氮钾复合肥料的制备方法， 所述氯基氮钾复合肥料颗粒由如下以 重量份数计的原料制成： In the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the present invention, the chlorine-based potassium-potassium compound fertilizer granule is prepared from the following raw materials in parts by weight:
尿素 45 Urea 45
氯化铵 12 Ammonium chloride 12
氯化钾 35 Potassium chloride 35
造粒助剂 8 Granulation aids 8
水 适量 是一个优选的技术方案。 The right amount of water is a preferred technical solution.
本发明的缓释长效氯基氮钾复合肥料的制备方法， 所述制备方法包括如下歩骤： 其制备方法包括如下歩骤： The preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the present invention, the preparation method comprises the following steps: The preparation method comprises the following steps:
① . 氯基氮钾复合肥料颗粒的制备 1. Preparation of chloro-based potassium compound fertilizer granules
首先把尿素 30〜45重量份加热熔融后，加入氯化铵 10〜20重量份和氯化钾 30〜50重量 份混合均匀， 加入造粒剂 8〜10重量份， 水适量。 利用传统造粒机将所述复合肥料各组分混 合造粒， 备用； First, 30 to 45 parts by weight of urea is heated and melted, and then 10 to 20 parts by weight of ammonium chloride and 30 to 50 parts by weight of potassium chloride are added and uniformly mixed, and 8 to 10 parts by weight of a granulating agent is added thereto, and water is appropriately added. Mixing and granulating the components of the composite fertilizer with a conventional granulator;
② . .硬脂酸一次包覆 2 . Stearic acid once coated
硬脂酸的用量为歩骤①制备的氯基氮钾复合肥料颗粒质量的 1.2 %， 包覆方法如下： a. .熔融硬脂酸的制备 The amount of stearic acid used is 1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer prepared in the first step. The coating method is as follows: a. Preparation of molten stearic acid
包膜用硬脂酸经按照配方准确计量后， 投入硬脂酸熔融槽中， 加热至熔融状态， 备用；
b. .包覆 After the coating is accurately metered with stearic acid according to the formula, it is put into the stearic acid melting tank, heated to a molten state, and used; b.
按照配方准确计量歩骤①制备的氯基氮钾复合肥料颗粒， 用歩骤 a制备的熔融硬脂酸， 在滚筒式混合造粒机中进行颗粒外喷涂包覆，使复合肥料颗粒外表面形成尽可能均匀的涂层， 热风干燥、 室温风冷却， 备用； 工艺条件如下： According to the formula, the chlorine-based nitrogen-potassium compound fertilizer granule prepared in the first step is accurately measured, and the molten stearic acid prepared in the step (a) is subjected to extragranular spray coating in a drum type mixing granulator to form an outer surface of the composite fertilizer granule. As uniform coating as possible, hot air drying, room temperature air cooling, standby; process conditions are as follows:
热风干燥温度 60 °C Hot air drying temperature 60 °C
冷却气流温度 40Γ ; Cooling air temperature 40 Γ;
③. 改性沸石粉二次表面扑粉 3. Modified zeolite powder secondary surface powder
a. 扑粉用混合粉体的制备 a. Preparation of powder for mixing powder
按照硬脂酸镁 2.5%， 沸石粉 97.5%的原料配比， 分别准确称取原料各组分， 混合均匀， 研磨制粉， 控制粉体细度过 120目筛， 备用； According to the ratio of magnesium stearate 2.5% and zeolite powder 97.5%, the raw materials were accurately weighed, mixed evenly, ground and powdered, and the fineness of the powder was controlled to pass through a 120 mesh sieve.
b. 扑粉 b. Powder
将歩骤 a制备的混合粉体用量控制在每 1000 kg氯基氮钾复合肥料颗粒扑粉 10 kg; The amount of the mixed powder prepared in the step a is controlled to 10 kg per 1000 kg of the chlorine-based nitrogen-potassium compound fertilizer particle;
⑥.筛分、 计量、 质量检验， 合格后包装， 制得缓释长效氯基氮钾复合肥料； 所得产品颗 粒外观圆润， 产品无异味； 6. Screening, metering, quality inspection, and post-qualification packaging, to obtain sustained-release long-acting chlorine-based nitrogen-potassium compound fertilizer; the obtained product particles have a round appearance and no odor;
是优选的技术方案。 It is a preferred technical solution.
按照本发明的缓释长效氯基氮钾复合肥料的制备方法制备的缓释长效氯基氮钾复合肥 料， 其特征在于产品质量达到如下技术指标： The sustained-release long-acting long-acting chlorine-based potassium-potassium compound fertilizer prepared by the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to the present invention is characterized in that the product quality reaches the following technical indexes:
N元素含量 ％ ^ 15 N element content % ^ 15
K20含量 ％ 10 K 2 0 content% 10
颗粒粒度 mm 2〜4.75mm Particle size mm 2~4.75mm
水分含量 wt% 2.0 。 Moisture content wt% 2.0.
按照本发明的缓释长效氯基氮钾复合肥料的制备方法制备的缓释长效氯基氮钾复合肥料 的应用， 其特征在于适用麻类等纤维作物、 椰子、 洋葱、 菠菜、 芹菜、 甘蓝、 甜菜、 水稻、 谷子、 高粱、 小麦、 茄子、 豌豆、 菊花、 棉花、 大豆、 油菜、 番茄、 柑橘、 葡萄、 茶树、 大 葱、 萝卜， 作为基肥和追肥施用。 The application of the sustained-release long-acting long-acting chlorine-based potassium-potassium compound fertilizer prepared by the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to the present invention is characterized in that it is applied to fiber crops such as hemp, coconut, onion, spinach, celery, Cabbage, beet, rice, millet, sorghum, wheat, eggplant, peas, chrysanthemum, cotton, soybean, rapeseed, tomato, citrus, grape, tea tree, green onion, radish, applied as base fertilizer and top dressing.
按照本发明的缓释长效氯基氮钾复合肥料的制备方法制备的缓释长效氯基氮钾复合肥料 的应用， 其特征在于与各种市售磷肥或复合磷肥混合施用。 以适应不同作物和不同土质对氮 磷钾养分的需求， The application of the sustained-release long-acting long-acting chlorine-based potassium-potassium compound fertilizer prepared by the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to the present invention is characterized in that it is mixed with various commercially available phosphate fertilizers or compound phosphate fertilizers. To adapt to the needs of different crops and different soils for nitrogen, phosphorus and potassium nutrients,
本发明的缓释长效氯基氮钾复合肥料的制备方法， 相比现有技术有如下积极效果： 1. 提供了一种缓释效果好， 肥效利用率高， 复合肥料中的氯元素能在农作物生长中充分 发挥作用， 工艺简单， 生产成本较低， 包膜材料易于被土壤中的微生物降解， 有益于上壤、
大气及水体环境保护的缓释长效氯基氮钾复合肥料的制备方法。 The preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer of the invention has the following positive effects compared with the prior art: 1. It provides a good sustained-release effect, high fertilizer efficiency utilization rate, and chlorine element energy in the compound fertilizer. It plays a full role in the growth of crops, the process is simple, the production cost is low, and the coating material is easily degraded by microorganisms in the soil, which is beneficial to the soil, Preparation method of sustained-release long-acting chlorine-based potassium-potassium compound fertilizer for atmospheric and water environmental protection.
2. 克服了人们对氯基肥料的技术偏见。 2. Overcoming the technical bias of chlorine-based fertilizers.
3. 单层包膜， 生成工艺简单， 设备投资省， 制造成本低， 销售价格也明显低于硫基肥料。 对于增加农民收入减少负担将会发挥积极作用。 3. Single-layer coating, simple production process, low equipment investment, low manufacturing cost, and sales price is also significantly lower than sulfur-based fertilizer. It will play a positive role in increasing the burden of farmers' income reduction.
4. 制得的缓释长效氯基氮钾复合肥料用途广泛， 适用麻类等纤维作物、 椰子、 洋葱、 菠 菜、 芹菜、 甘蓝、 甜菜、 水稻、 谷子、 高粱、 小麦、 茄子、 豌豆、 菊花、 棉花、 大豆、 油菜、 番茄、 柑橘、 葡萄、 茶树、 大葱、 萝卜， 作为基肥和追肥施用。 4. The prepared sustained-release long-acting chloro-based potassium compound fertilizer is widely used for fiber crops such as hemp, coconut, onion, spinach, celery, cabbage, beet, rice, millet, sorghum, wheat, eggplant, pea, chrysanthemum , cotton, soybeans, rapeseed, tomatoes, citrus, grapes, tea trees, green onions, radishes, applied as base fertilizer and top dressing.
5. 制得的缓释长效氯基氮钾复合肥料与各种市售磷肥或复合磷肥混合施用。 以适应不同 作物和不同土质对氮磷钾养分的需求， 5. The prepared sustained-release long-acting chlorine-based potassium-potassium compound fertilizer is mixed with various commercially available phosphate fertilizers or compound phosphate fertilizers. To adapt to the needs of different crops and different soils for NPK nutrients,
6. 包膜材料可以在土壤微生物作用下降解， 避免了包膜材料对土壤环境的污染。 6. The coating material can be degraded under the action of soil microorganisms, avoiding the pollution of the coating material to the soil environment.
7 缓释效果好， 肥料利用率高。 适合于多种作为施用。 平均提高肥料利用率 1 1.1 %〜 19.3%，对粮食作物平均提高产量 5.7%〜1 7.3%，对于果树、蔬菜类平均提高产量 13.1〜27.9%。 具体实施方式 7 The sustained release effect is good and the fertilizer utilization rate is high. Suitable for a variety of applications. The average increase in fertilizer utilization rate is 1.1%~19.3%, and the average yield increase for food crops is 5.7%~1.3%, and the average yield increase for fruit trees and vegetables is 13.1~27.9%. detailed description
本发明下面将结合实施例作进一歩详述： The invention will be further described in detail below with reference to the embodiments:
实施例 1 Example 1
按照如下歩骤制备的一种缓释长效氯基氮钾复合肥料 A sustained-release long-acting chlorine-based potassium-potassium compound fertilizer prepared according to the following procedure
① . 氯基氮钾复合肥料颗粒的制备 1. Preparation of chloro-based potassium compound fertilizer granules
首先把尿素 45重量份加热熔融后， 加入氯化铵 12重量份和氯化钾 35重量份混合均匀， 加入造粒剂 8重量份， 水适量。 利用传统造粒机将所述复合肥料各组分混合造粒， 备用； 所述造粒助剂 60%〜70%的膨润土和 40%〜30%的铝矾土粉混合组成； First, 45 parts by weight of urea was heated and melted, and then 12 parts by weight of ammonium chloride and 35 parts by weight of potassium chloride were added and uniformly mixed, and 8 parts by weight of a granulating agent was added thereto in an appropriate amount of water. Mixing and granulating the components of the composite fertilizer with a conventional granulator for use; the granulation aid is composed of 60% to 70% of bentonite and 40% to 30% of bauxite powder;
所述改性沸石粉由如下以重量百分数计的原料组成： The modified zeolite powder consists of the following raw materials in weight percent:
硬脂酸锌 1 .1 %〜2.5% Zinc stearate 1.1%~2.5%
沸石粉 97.5%〜98.9% Zeolite powder 97.5%~98.9%
② . .硬脂酸一次包覆 2 . Stearic acid once coated
硬脂酸的用量为歩骤①制备的氯基氮钾复合肥料颗粒质量的 1.2 % , 包覆方法如下： a. .熔融硬脂酸的制备 The amount of stearic acid used is 1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer prepared in the first step. The coating method is as follows: a. Preparation of molten stearic acid
包膜用硬脂酸经按照配方准确计量后， 投入硬脂酸熔融槽中， 加热至熔融状态， 备用； b. .包覆 After the coating is accurately metered with stearic acid according to the formula, it is put into the stearic acid melting tank and heated to a molten state for use; b.
按照配方准确计量歩骤①制备的氯基氮钾复合肥料颗粒， 用歩骤 a制备的熔融硬脂酸， 在滚筒式混合造粒机中进行颗粒外喷涂包覆，使复合肥料颗粒外表而形成尽可能均匀的涂层，
热风干燥、 室温风冷却， 备用； 工艺条件如下： According to the formula, the chlorine-based nitrogen-potassium compound fertilizer granule prepared in the first step is accurately measured, and the molten stearic acid prepared in the step (a) is subjected to extragranular spray coating in a drum type mixing granulator to form a composite fertilizer granule. As uniform as possible, Hot air drying, room temperature air cooling, standby; process conditions are as follows:
热风干燥温度不高于 80°C Hot air drying temperature is not higher than 80 ° C
冷却气流温度不高于 50°C ; The cooling air temperature is not higher than 50 ° C ;
③. 改性沸石粉二次表面扑粉 3. Modified zeolite powder secondary surface powder
a. 扑粉用混合粉体的制备 a. Preparation of powder for mixing powder
按照硬脂酸镁 1.1 %〜2.5%， 沸石粉 97.5%〜98.9 %的原料配比， 分别准确称取原料各组 分， 混合均匀， 研磨制粉， 控制粉体细度过 120目筛， 备用； According to the magnesium stearate 1.1%~2.5%, the zeolite powder 97.5%~98.9% of the raw material ratio, accurately weigh the raw materials, mix evenly, grind the powder, control the fineness of the powder over 120 mesh sieve, spare ;
b. 扑粉 b. Powder
将歩骤 a制备的混合粉体用量控制在每 1000 kg氯基氮钾复合肥料颗粒扑粉 10〜15 kg; The amount of the mixed powder prepared in the step a is controlled to 10 to 15 kg per 1000 kg of the chlorine-based nitrogen-potassium compound fertilizer particle;
⑥.筛分、 计量、 质量检验， 合格后包装， 制得缓释长效氯基氮钾复合肥料； 所得产品颗 粒外观圆润， 产品无异味； 6. Screening, metering, quality inspection, and post-qualification packaging, to obtain sustained-release long-acting chlorine-based nitrogen-potassium compound fertilizer; the obtained product particles have a round appearance and no odor;
产品质量达到如下技术指标： Product quality meets the following technical indicators:
N元素含量 ％ ^ 15 N element content % ^ 15
K20含量 ％ ^ 10 K 2 0 content% ^ 10
颗粒粒度 mm 2—4.75mm Particle size mm 2 - 4.75mm
水分含量 wt% s≤ 2.0 。 Moisture content wt% s ≤ 2.0.
实施例 2〜实施例 7 Embodiment 2 to Embodiment 7
按照实施例 1的方法和歩骤， 按照表 1的配方， 制备缓释长效氯基氮钾复合肥料 表 1 According to the method and the procedure of Example 1, according to the formulation of Table 1, a sustained-release long-acting chlorine-based potassium-potassium compound fertilizer was prepared.
产品质量达到如下技术指标： Product quality meets the following technical indicators:
N元素含量 ％ 15 N element content % 15
K20含量 % 10 K 2 0 content% 10
颗粒粒度 mm 2〜4.75mm ,
水分含量 wt% 2.0 。 Particle size mm 2~4.75mm, Moisture content wt% 2.0.
实施例 1〜实施例 7制得缓释长效氯基氮钾复合肥料均适用于适用麻类等纤维作物、 椰 子、 洋葱、 菠菜、 芹菜、 甘蓝、 甜菜、 水稻、 谷子、 高粱、 小麦、 茄子、 豌豆、 菊花、 棉花、 大豆、 油菜、 番茄、 柑橘、 葡萄、 茶树、 大葱、 萝卜， 作为基肥和追肥施用。 The sustained-release long-acting chlorine-based potassium-potassium compound fertilizers prepared in Examples 1 to 7 are suitable for use in fiber crops such as hemp, coconut, onion, spinach, celery, cabbage, beet, rice, millet, sorghum, wheat, eggplant. , peas, chrysanthemums, cotton, soybeans, rapeseed, tomatoes, citrus, grapes, tea trees, green onions, radishes, applied as base fertilizer and top dressing.
亦可与各种市售磷肥或复合磷肥混合施用。 以适应不同作物和不同土质对氮磷钾养分的 需求， It can also be mixed with various commercially available phosphate fertilizers or compound phosphate fertilizers. To adapt to the needs of different crops and different soil types for NPK nutrients,
平均提高肥料利用率 11.1 %〜19.3%，对粮食作物平均提高产量 5.7%〜17.3%，对于果树、 蔬菜类平均提高产量 13.1〜27.9%。
The average fertilizer utilization rate is 11.1%~19.3%, and the average yield increase for food crops is 5.7%~17.3%, and the average yield increase for fruit trees and vegetables is 13.1~27.9%.
Claims
1. 一种缓释长效氯基氮钾复合肥料的制备方法， 其特征在于首先制造氯基氮钾复合肥料 颗粒， 然后将氯基氮钾复合肥料颗粒进行硬脂酸一次包覆和改性沸石粉二次表面扑粉制得， 其中： 所述氯基氮钾复合肥料颗粒 ώ如下以重量份数计的原料制成： A preparation method of a sustained-release long-acting chlorine-based potassium-potassium compound fertilizer, which is characterized in that firstly, a chlorine-based potassium-potassium compound fertilizer granule is produced, and then the chloro-based potassium-potassium compound fertilizer granule is once coated and modified with stearic acid. Preparing a secondary surface powder of zeolite powder, wherein: the chlorine-based potassium-potassium compound fertilizer granule is made of the following raw materials in parts by weight:
尿素 30〜60 Urea 30~60
氯化铵 10〜20 Ammonium chloride 10~20
氯化钾 22〜53 Potassium chloride 22~53
造粒助剂 7〜11 Granulation aids 7~11
水 适量 Water amount
所述造粒助剂 60%〜70%的膨润土和 4()%〜30%的铝矾土粉混合组成； The granulation aid is composed of 60% to 70% of bentonite and 4% to 30% of bauxite powder;
所述硬脂酸一次包覆， 硬脂酸用量为氯基氮钾复合肥料颗粒质量的 0.6 %〜1.2 %； 所述改性沸石粉由如下以重量百分数计的原料组成： The stearic acid is coated once, and the amount of stearic acid is 0.6% to 1.2% by mass of the chlorine-based potassium-potassium compound fertilizer pellet; the modified zeolite powder is composed of the following raw materials in weight percentage:
硬脂酸锌 1.1%〜2.5% Zinc stearate 1.1%~2.5%
沸石粉 97.5%〜98.9% Zeolite powder 97.5%~98.9%
所述制备方法包括如下歩骤： The preparation method comprises the following steps:
① . 氯基氮钾复合肥料颗粒的制备 1. Preparation of chloro-based potassium compound fertilizer granules
首先把尿素 30〜60重量份加热熔融后，加入氯化铵 10〜20重量份和氯化钾 22〜53重量 份混合均匀， 加入造粒剂 7〜10重量份， 水适量。 利用传统造粒机将所述复合肥料各组分混 合造粒， 备用； First, 30 to 60 parts by weight of urea is heated and melted, and then 10 to 20 parts by weight of ammonium chloride and 22 to 53 parts by weight of potassium chloride are added and uniformly mixed, and 7 to 10 parts by weight of a granulating agent is added thereto, and water is appropriately added. Mixing and granulating the components of the composite fertilizer with a conventional granulator;
② . .硬脂酸一次包覆 2 . Stearic acid once coated
硬脂酸的用量为歩骤①制备的氯基氮钾复合肥料颗粒质量的 0.6 %〜1.2 %， 包覆方法如 下： The amount of stearic acid used is 0.6% to 1.2% of the mass of the chlorine-based potassium-potassium compound fertilizer prepared in the first step, and the coating method is as follows:
a. .熔融硬脂酸的制备 a. Preparation of molten stearic acid
包膜用硬脂酸经按照配方准确计量后， 投入硬脂酸熔融槽中， 加热至熔融状态， 备用； b. .包覆 After the coating is accurately metered with stearic acid according to the formula, it is put into the stearic acid melting tank and heated to a molten state for use; b.
按照配方准确计量歩骤①制备的氯基氮钾复合肥料颗粒， 用歩骤 a制备的熔融硬脂酸， 在滚筒式混合造粒机中进行颗粒外喷涂包覆，使复合肥料颗粒外表面形成尽可能均匀的涂层， 热风干燥、 室温风冷却， 备用； 工艺条件如下： According to the formula, the chlorine-based nitrogen-potassium compound fertilizer granule prepared in the first step is accurately measured, and the molten stearic acid prepared in the step (a) is subjected to extragranular spray coating in a drum type mixing granulator to form an outer surface of the composite fertilizer granule. As uniform coating as possible, hot air drying, room temperature air cooling, standby; process conditions are as follows:
热风干燥温度不高于 80Γ Hot air drying temperature is not higher than 80Γ
冷却气流温度不高于 50°C ; The cooling air temperature is not higher than 50 ° C ;
③ . 改性沸石粉二次表面扑粉
a. 扑粉用混合粉体的制备 3. Modified zeolite powder secondary surface powder a. Preparation of powder for mixing powder
按照硬脂酸镁 1.1 %〜2.5%， 沸石粉 97.5%〜98.9%的原料配比， 分别准确称取原料各组 分， 混合均匀， 研磨制粉， 控制粉体细度过 120目筛， 备用； According to the magnesium stearate 1.1%~2.5%, zeolite powder 97.5%~98.9% raw material ratio, accurately weigh the raw materials, mix evenly, grind the powder, control the fineness of the powder over 120 mesh sieve, spare ;
b. 扑粉 b. Powder
将歩骤 a制备的混合粉体用量控制在每 1000 kg氯基氮钾复合肥料颗粒扑粉 10〜15 kg; The amount of the mixed powder prepared in the step a is controlled to 10 to 15 kg per 1000 kg of the chlorine-based nitrogen-potassium compound fertilizer particle;
⑥.筛分、 计量、 质量检验， 合格后包装， 制得缓释长效氯基氮钾复合肥料的制备方法； 所得产品颗粒外观圆润， 产品无异味。 6. Screening, metering, quality inspection, and packaging after qualification, the preparation method of slow-release long-acting chlorine-based potassium-potassium compound fertilizer is obtained; the obtained product particles have a round appearance and no odor.
2. . 根据权利要求 1 的缓释长效氯基氮钾复合肥料的制备方法， 其特征在于所述氯基氮 钾复合肥料颗粒 如下以重量份数计的原料制成： A method for producing a sustained-release long-acting chloro-based potassium-potassium compound fertilizer according to claim 1, wherein said chloro-based potassium-potassium compound fertilizer granules are produced as follows in parts by weight:
尿素 30〜45 Urea 30~45
氯化钹 10〜20 Barium chloride 10~20
氯化钾 30〜50 Potassium chloride 30~50
造粒助剂 8〜10 Granulation aid 8~10
水 适量 Water amount
3. 根据权利要求 1的缓释长效氯基氮钾复合肥料的制备方法， 其特征在于所述氯基氮钾 复合肥料颗粒由如下以重量份数计的原料制成： The method for preparing a sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to claim 1, wherein the chlorine-based potassium-potassium compound fertilizer granule is made of the following raw materials in parts by weight:
尿素 45 Urea 45
氯化钹 12 Barium chloride 12
氯化钾 35 Potassium chloride 35
造粒助剂 8 Granulation aids 8
水 适量 Water amount
4. 根据权利要求 1的缓释长效氯基氮钾复合肥料的制备方法， 其特征在于所述制备方法 包括如下歩骤： The method for preparing a sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to claim 1, wherein the preparation method comprises the following steps:
其制备方法包括如下歩骤： The preparation method comprises the following steps:
① . 氯基氮钾复合肥料颗粒的制备 1. Preparation of chloro-based potassium compound fertilizer granules
首先把尿素 30〜45重量份加热熔融后，加入氯化铵 10〜20重量份和氯化钾 30〜50重量 份混合均匀， 加入造粒剂 8〜10重量份， 水适量。 利用传统造粒机将所述复合肥料各组分混 合造粒， 备用； First, 30 to 45 parts by weight of urea is heated and melted, and then 10 to 20 parts by weight of ammonium chloride and 30 to 50 parts by weight of potassium chloride are added and uniformly mixed, and 8 to 10 parts by weight of a granulating agent is added thereto, and water is appropriately added. Mixing and granulating the components of the composite fertilizer with a conventional granulator;
② . .硬脂酸一次包覆 2 . Stearic acid once coated
硬脂酸的用量为歩骤①制备的氯基氮钾复合肥料颗粒质量的 1 .2 %， 包覆方法如下： a. .熔融硬脂酸的制备
WO 2014/101270 权 利 要 求 书 PCT/CN2013/001246 包膜用硬脂酸经按照配方准确计量后， 投入硬脂酸熔融槽中， 加热至熔融状态， 备用- b. .包覆 The amount of stearic acid used is 1.2% by mass of the chlorine-based potassium-potassium compound fertilizer prepared in the first step, and the coating method is as follows: a. Preparation of molten stearic acid WO 2014/101270 Claim PCT/CN2013/001246 The stearic acid for coating is accurately metered according to the formula, then put into the stearic acid melting tank, heated to a molten state, and used - b.
按照配方准确计量歩骤①制备的氯基氮钾复合肥料颗粒， 用歩骤 a制备的熔融硬脂酸， 在滚筒式混合造粒机中进行颗粒外喷涂包覆，使复合肥料颗粒外表面形成尽可能均匀的涂层， 热风千燥、 室温风冷却， 备用； 工艺条件如下： According to the formula, the chlorine-based nitrogen-potassium compound fertilizer granule prepared in the first step is accurately measured, and the molten stearic acid prepared in the step (a) is subjected to extragranular spray coating in a drum type mixing granulator to form an outer surface of the composite fertilizer granule. As uniform as possible coating, hot air drying, room temperature air cooling, standby; process conditions are as follows:
热风干燥温度 60 °C Hot air drying temperature 60 °C
冷却气流温度 40°C ; Cooling gas temperature 40 ° C ;
③. 改性沸石粉二次表面扑粉 3. Modified zeolite powder secondary surface powder
a. 扑粉用混合粉体的制备 a. Preparation of powder for mixing powder
按照硬脂酸镁 2.5%， 沸石粉 97.5%的原料配比， 分别准确称取原料各组分， 混合均匀， 研磨制粉， 控制粉体细度过 120目筛， 备用； According to the ratio of magnesium stearate 2.5% and zeolite powder 97.5%, the raw materials were accurately weighed, mixed evenly, ground and powdered, and the fineness of the powder was controlled to pass through a 120 mesh sieve.
b. 扑粉 b. Powder
将歩骤 a制备的混合粉体用量控制在每 1000 kg氯基氮钾复合肥料颗粒扑粉 10 kg: The amount of mixed powder prepared in step a is controlled to 10 kg per 1000 kg of chlorinated nitrogen-nitrogen compound fertilizer granules:
⑥.筛分、 计量、 质量检验， 合格后包装， 制得缓释长效氯基氮钾复合肥料的制备方法； 所得产品颗粒外观圆润， 产品无异味。 6. Screening, metering, quality inspection, and packaging after qualification, the preparation method of slow-release long-acting chlorine-based potassium-potassium compound fertilizer is obtained; the obtained product particles have a round appearance and no odor.
5. 按照权利要求 1的缓释长效氯基氮钾复合肥料的制备方法制备的缓释长效氯基氮钾复 合肥料， 其特征在于产品质量达到如下技术指标： The sustained-release long-acting long-acting chlorine-based potassium-potassium compound fertilizer prepared by the method for preparing the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to claim 1, wherein the product quality reaches the following technical indexes:
N元素含量 ％ ≡5 15 N element content % ≡5 15
K20含量 ％ 5≥ 10 K 2 0 content% 5≥ 10
颗粒粒度 mm 2~4.75mm Particle size mm 2~4.75mm
水分含量 wt% 2.0 。 Moisture content wt% 2.0.
6. 按照权利要求 1的缓释长效氯基氮钾复合肥料的制备方法制备的缓释长效氯基氮钾复 合肥料的应用， 其特征在于适用麻类等纤维作物、 椰子、 洋葱、 菠菜、 芹菜、 甘蓝、 甜菜、 水稻、 谷子、 高粱、 小麦、 茄子、 豌豆、 菊花、 棉花、 大豆、 油菜、 番茄、 柑橘、 葡萄、 茶 树、 大葱、 萝卜， 作为基肥和追肥施用。 The use of the sustained-release long-acting long-acting chlorine-based potassium-potassium compound fertilizer prepared by the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to claim 1, which is characterized in that it is suitable for fiber crops such as hemp, coconut, onion and spinach , celery, kale, beet, rice, millet, sorghum, wheat, eggplant, peas, chrysanthemum, cotton, soybean, rapeseed, tomato, citrus, grape, tea tree, green onion, radish, applied as base fertilizer and top dressing.
7. .按照权利要求 1 的缓释长效氯基氮钾复合肥料的制备方法制备的缓释长效 ft基氮钾 复合肥料的应用， 其特征在于与各种市售磷肥或复合磷肥混合施用。
The application of the sustained-release long-acting ft-based nitrogen-potassium compound fertilizer prepared by the preparation method of the sustained-release long-acting chlorine-based potassium-potassium compound fertilizer according to claim 1, characterized in that it is mixed with various commercially available phosphate fertilizers or compound phosphate fertilizers. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015549942A JP6012886B2 (en) | 2012-12-26 | 2013-10-14 | Preparation method of sustained-release chlorine-based nitrogen-potassium compound fertilizer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210576638.0A CN103058763B (en) | 2012-12-26 | 2012-12-26 | A preparation method for a long-acting slow-release chlorine-based nitrogen and potassium-containing compound fertilizer |
| CN201210576638.0 | 2012-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014101270A1 true WO2014101270A1 (en) | 2014-07-03 |
Family
ID=48101698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2013/001246 WO2014101270A1 (en) | 2012-12-26 | 2013-10-14 | Method for preparing slow-release long-acting chlorine-based nitrogen potassium compound fertilizer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6012886B2 (en) |
| CN (1) | CN103058763B (en) |
| WO (1) | WO2014101270A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311755A (en) * | 2017-07-04 | 2017-11-03 | 山东农业大学 | A kind of long-acting special fertilizer of raising salt-soda soil salt tolerance of crop and preparation method thereof |
| CN108002927A (en) * | 2017-12-29 | 2018-05-08 | 山东农业大学 | A kind of functional form controlled release Blending Fertilizer for improveing soil acidification and preparation method thereof |
| CN112335791A (en) * | 2020-10-26 | 2021-02-09 | 刘吉生 | Biological regulation and control release type urea compound and preparation method thereof |
| CN113480357A (en) * | 2021-06-30 | 2021-10-08 | 嘉施利(铁岭)化肥有限公司 | Bulk blend fertilizer |
| CN115286448A (en) * | 2022-07-20 | 2022-11-04 | 辽宁希林索农业科技有限公司 | Silicon-coated slow-control rice fertilizer and preparation method thereof |
| CN115380766A (en) * | 2022-09-06 | 2022-11-25 | 安徽省农业科学院棉花研究所 | Loose and breathable covering soil base material for agaricus bisporus and preparation method thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103086791A (en) * | 2012-12-26 | 2013-05-08 | 施可丰化工股份有限公司 | Environment-friendly chlorine-based nitro potash composite slow-release fertilizer |
| CN103058763B (en) * | 2012-12-26 | 2014-09-10 | 施可丰化工股份有限公司 | A preparation method for a long-acting slow-release chlorine-based nitrogen and potassium-containing compound fertilizer |
| CN105198554A (en) * | 2015-08-17 | 2015-12-30 | 李志山 | Tea tree controlled release fertilizer and preparation method thereof |
| CN110015926A (en) * | 2019-04-04 | 2019-07-16 | 山西师范大学 | Novel urine ammonium inclusion compound fertilizer tower granulation method |
| CN110483174A (en) * | 2019-08-30 | 2019-11-22 | 江苏村村配农业科技有限公司 | A kind of formula fertilizer for good quality wheat production |
| CN112279741A (en) * | 2020-11-12 | 2021-01-29 | 巨野茂施农业科技有限公司 | Phosphorus-element-free controlled-release bulk blend fertilizer special for corn |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093144A (en) * | 2011-01-19 | 2011-06-15 | 施可丰化工股份有限公司 | Biodegradable coated urea |
| CN102320901A (en) * | 2011-09-02 | 2012-01-18 | 史丹利化肥股份有限公司 | Melt biomass composite chlorine-based slow release fertilizer and preparation method thereof |
| CN102336617A (en) * | 2011-09-02 | 2012-02-01 | 史丹利化肥股份有限公司 | High-tower granulation slow release long-effect chlorine base compound fertilizer and preparation method thereof |
| CN103058763A (en) * | 2012-12-26 | 2013-04-24 | 施可丰化工股份有限公司 | A preparation method for a long-acting slow-release chlorine-based nitrogen and potassium-containing compound fertilizer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792354B (en) * | 2010-04-07 | 2013-07-10 | 中盐安徽红四方股份有限公司 | Color drought-resistance water-retention sustained-release compound fertilizer and method for producing same |
| CN102432374B (en) * | 2011-09-02 | 2013-06-05 | 史丹利化肥股份有限公司 | Melt biomass composite potassium sulfate type slow-release fertilizer and preparation method thereof |
-
2012
- 2012-12-26 CN CN201210576638.0A patent/CN103058763B/en active Active
-
2013
- 2013-10-14 JP JP2015549942A patent/JP6012886B2/en not_active Expired - Fee Related
- 2013-10-14 WO PCT/CN2013/001246 patent/WO2014101270A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093144A (en) * | 2011-01-19 | 2011-06-15 | 施可丰化工股份有限公司 | Biodegradable coated urea |
| CN102320901A (en) * | 2011-09-02 | 2012-01-18 | 史丹利化肥股份有限公司 | Melt biomass composite chlorine-based slow release fertilizer and preparation method thereof |
| CN102336617A (en) * | 2011-09-02 | 2012-02-01 | 史丹利化肥股份有限公司 | High-tower granulation slow release long-effect chlorine base compound fertilizer and preparation method thereof |
| CN103058763A (en) * | 2012-12-26 | 2013-04-24 | 施可丰化工股份有限公司 | A preparation method for a long-acting slow-release chlorine-based nitrogen and potassium-containing compound fertilizer |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311755A (en) * | 2017-07-04 | 2017-11-03 | 山东农业大学 | A kind of long-acting special fertilizer of raising salt-soda soil salt tolerance of crop and preparation method thereof |
| CN108002927A (en) * | 2017-12-29 | 2018-05-08 | 山东农业大学 | A kind of functional form controlled release Blending Fertilizer for improveing soil acidification and preparation method thereof |
| CN108002927B (en) * | 2017-12-29 | 2020-07-28 | 山东农业大学 | Functional controlled-release blended fertilizer for improving soil acidification and preparation method thereof |
| CN112335791A (en) * | 2020-10-26 | 2021-02-09 | 刘吉生 | Biological regulation and control release type urea compound and preparation method thereof |
| CN112335791B (en) * | 2020-10-26 | 2023-12-08 | 刘吉生 | Biological controlled release urea compound and preparation method thereof |
| CN113480357A (en) * | 2021-06-30 | 2021-10-08 | 嘉施利(铁岭)化肥有限公司 | Bulk blend fertilizer |
| CN115286448A (en) * | 2022-07-20 | 2022-11-04 | 辽宁希林索农业科技有限公司 | Silicon-coated slow-control rice fertilizer and preparation method thereof |
| CN115380766A (en) * | 2022-09-06 | 2022-11-25 | 安徽省农业科学院棉花研究所 | Loose and breathable covering soil base material for agaricus bisporus and preparation method thereof |
| CN115380766B (en) * | 2022-09-06 | 2023-06-16 | 安徽省农业科学院棉花研究所 | Loose and breathable earthing base material for agaricus bisporus and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103058763B (en) | 2014-09-10 |
| JP2016508113A (en) | 2016-03-17 |
| JP6012886B2 (en) | 2016-10-25 |
| CN103058763A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2014101270A1 (en) | Method for preparing slow-release long-acting chlorine-based nitrogen potassium compound fertilizer | |
| CN105085062B (en) | A kind of special tillering fertilizer of rice and its preparation and application method | |
| JP2016508113A5 (en) | ||
| CN101905991A (en) | Long-acting slow-release potato special fertilizer and preparation method thereof | |
| WO2014101268A1 (en) | Environment-friendly slow-release sulfur-based nitrogen potassium compound fertilizer | |
| CN104909964A (en) | Slow-release fertilizer and application thereof | |
| CN101591207B (en) | Polynutrient anti-blocking synergy urea and preparation method | |
| WO2014101269A1 (en) | Method for preparing special slow-release long-acting compound fertilizer for paddy rice | |
| CN105175088A (en) | Biochar slow release phosphate fertilizer and preparation method thereof | |
| CN104447132A (en) | Polyaspartate modified slow-release urea as well as preparation method and application thereof | |
| CN102515911A (en) | High-nitrogen composite fertilizer and preparation method thereof | |
| CN105016858A (en) | Biochar slow-release nitrogen fertilizer and preparation method thereof | |
| CN105175087A (en) | Biochar slow release base fertilizer special for corn and preparation method thereof | |
| CN100369870C (en) | Controlled-releasing fertilizer for perennial orange trees, and its prepn. method | |
| WO2014101267A1 (en) | Method for preparing special slow-release long-acting compound fertilizer for tobacco | |
| CN104446803B (en) | high nitrogen type water-soluble fertilizer containing fulvic acid | |
| CN101550037A (en) | Polypeptide fertilizer synergistic agent and preparation method thereof | |
| WO2017206744A1 (en) | Granular ammonium phosphate having quick- and long-acting sulfur and zinc, and preparation method therefor | |
| CN105036902A (en) | Biocarbon sustain-released potassium fertilizer and preparation method thereof | |
| CN103159549A (en) | Preparation method of slow-release long-acting sulfur-based nitrogen potassium compound fertilizer | |
| CN103011939A (en) | Special controlled release fertilizer for lawns and production process thereof | |
| CN106278664A (en) | A kind of environmentally friendly functional controlled release bulk blended fertilizer of degradable lignin and trace element peplos and preparation method thereof | |
| CN103772035B (en) | Granular nitrogen fertilizer taking ammonium bicarbonate as main nitrogen source and preparation method thereof | |
| CN105130578A (en) | Energy-gathered activating enzyme fertilizer and preparation method thereof | |
| CN105152814A (en) | Synchronous slow-release humic acid fertilizer produced by using high tower process and production method of synchronous slow-release humic acid fertilizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 13866996 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2015549942 Country of ref document: JP Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 13866996 Country of ref document: EP Kind code of ref document: A1 |