CN101372429A - Nitrogen synergistic agent for intensive vegetable filed and preparation thereof - Google Patents
Nitrogen synergistic agent for intensive vegetable filed and preparation thereof Download PDFInfo
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- CN101372429A CN101372429A CNA2007100125416A CN200710012541A CN101372429A CN 101372429 A CN101372429 A CN 101372429A CN A2007100125416 A CNA2007100125416 A CN A2007100125416A CN 200710012541 A CN200710012541 A CN 200710012541A CN 101372429 A CN101372429 A CN 101372429A
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Abstract
The invention relates to a soil fertilizer synergist, in particular to a nitrogen synergist applied to protected horticultural vegetable fields and a preparation method thereof. The components by weight percentage are 10-30% of calcium cyanamide, 30-50% of zeolite powder and 30-50% of lignite. The preparation method comprises the following steps: the 10-30% of calcium cyanamide and the 30-50% of zeolite powder are mechanically and evenly mixed to obtain a mixture, and then the mixture is added with the 30-50% of lignite and mechanically mixed evenly, thus obtaining the nitrogen synergist. The preparation method is simple and pollution-free, and the nitrogen synergist is an organic and inorganic combined nitrogen synergist which has the effects of combining the slow release and quick release of nutrients, slowly releasing fertilizer nutrients, improving the utilization rate of the fertilizer, reducing the amount of chemical fertilizers used, improving the physical and chemical properties of soil and improving the productivity of the soil.
Description
Technical field
The present invention relates to the soil and fertilizer synergistic agent, be specially a kind of nitrogen synergistic agent for intensive vegetable filed and preparation method thereof.
Background technology
In state-owned facilities vegetable cultivated area reach 2,500,000 hectares, account for more than 80% of world's facilities vegetable total area.The intensive vegetable filed soil of China utilizes the intensity height, the usage frequency height, fertilizer amount is big, be chemical fertilizer or fertilizer all considerably beyond the crop requirement, nitrogenous fertilizer is excessive, and to use phenomenon very general.As the intensive vegetable filed annual per hectare of Liaoning Area execute the fertilizer that becomes thoroughly decomposed up to 80 tons, chemical fertilizer is up to 4000 kilograms.The direct result of China's field of vegetables high strength utilization, a large amount fertilising is field of vegetables sustainable use ability drop, vegetable products downgrade, the excessive a series of ecological environment problems such as causing groundwater azotate pollution of using of nitrogenous fertilizer.Because a large amount is used, particularly nitrogen is used in a large number, causes the utilization ratio of intensive vegetable filed fertilizer nitrogen and soil nitrogen low.Design nitrogen synergistic agent product improves soil physical and chemical property for improving intensive vegetable filed nitrogen utilization efficiency, reduces nitrate salts content of vegetable, keeps the farmland sustainable use significant.
Cyanamide calcium (CaCN
2), be lime nitrogen again, be a derived product of calcium carbide, be a kind of grey black look oiliness particle.Cyanamide calcium in soil with reaction of moisture, generate earlier calcium hydroxide and cyanogen ammonia, cyanogen ammoniacal liquor is separated formation urea, decomposes ammonification at last, for plant absorbing; The further polymerization and form dicyandiamide of cyanogen ammonia.Cyanogen ammonia and dicyandiamide can suppress the activity of nitrobacteria in the soil, hinder nitrification, make the ammonium nitrogen in being manured into soil be difficult for being converted into nitric nitrogen, can reduce the accumulation of nitrate in soil and the vegetables.The nitrogenous 17-23% of cyanamide calcium, contain calcium oxide 40-50%, pH is 11.0-12.5.Owing to be difficult for leaching, can prevent soil acidification, the structure of improving the soil, the improvement secondary salinization soil, it is plain and organic to increase soil calcium, and available nitrogen is evenly slowly discharged, its effective constituent is decomposed into the absorbable nitrogen of crop, do not have residually, can satisfy the demand of most of crops, the validity period of nitrogenous fertilizer was reached more than 90 days.Cyanamide calcium is medicine, the dual-purpose soil sanitation agent of fertilizer, has soil disinfection, improves multiple actions such as nitrogen utilization efficiency, culture fertility.China has 36 families of cyanamide calcium manufacturer at present, and annual production reaches more than 270,000 tons, and cyanamide calcium has become in industrial application, and drug on the market, but its Application and Development on agricultural has very wide prospect.
Natural zeolite is a kind of good nitrogen sorbent material, is the aluminium silicate mineral of a kind of aqueous calcium, sodium, barium, potassium.The character that zeolite exchanges with other positively charged ions in the aqueous solution makes the electric field, specific surface area etc. of crystalline structure inside that certain variation take place by ion-exchange.Zeolite has very bigger serface, and specific molecule structure and the big electrostatic attraction that forms makes zeolite that sizable stress field be arranged has extremely strong adsorptive power in addition, but active adsorption ammonium ion, nitrate ion etc.China's zeolite resource is abundant, and aspect agricultural use, natural zeolite is a kind of good nitrogen conditioning agent.
Brown coal are the minimum coals of degree of coalification.Be characterized in the moisture height, proportion is little, volatile matter is high, non-caked, chemical reactivity strong, poor heat stability, thermal value are low, it is a kind of fine organic materials, the humic acid material that contains different quantities in the brown coal, be to improve crop yield, improve a kind of good organic fertilizer resource of crop quality.There is abundant lignite resource in China, and reserves are approximately 1,430 hundred million tons, account for more than 17% in the coal in China total amount.Brown coal reserves with northeast, the Inner Mongol and adjoining area, three provinces in the northeast of China serve as at most, reach 46,900,000,000 tons, and brown coal are adding materials of a kind of fine soil improvement agent raw material and fertilizer product.
At present, the relevant nitrogen synergistic agent of China is mainly at chemical nitrogen fertilizer or contain nitrogen composite fertilizer and design, and is also rare at the nitrogen fertilizer potentiating agent product that directly applies the field of fertilizer-soil-crop system.In the intensive vegetable filed a large amount fertilising system, not only will apply a large amount of chemical nitrogen fertilizers, nitrogen content is also considerable in a large amount of fertilizers that apply.Because intensive vegetable filed a large amount fertilising, after the utilization for many years, main nutrient such as soil with organic matter, nitrogen, phosphorus, potassium accumulates in a large number, and the raising of the nitrogen utilization efficiency of soil own also is the technical problem that urgent need solves in the actual production process.Therefore, design at nitrogen synergy product in the intensive vegetable filed a large amount fertilising system, for subtracting fertilise, improve fertilizer efficiency, reduce and pollute, promote that the farmland sustainable use has crucial meaning, product will have very vast market prospect and application value.
Summary of the invention
The object of the present invention is to provide nitrogen synergistic agent for intensive vegetable filed that a kind of technology is simple, raw material is sufficient, with low cost and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is as follows:
Nitrogen synergistic agent: be cyanamide calcium 10-30%, zeolite powder 30-50% and brown coal 30-50% by weight percentage.Described zeolite powder is that natural zeolite is crossed the 60-100 mesh sieve after crushed.
The preparation method of nitrogen synergistic agent:, by weight percentage 10-30% cyanamide calcium and 30-50% zeolite powder are puddled evenly by machinery, then in mixture, add the 30-50% brown coal in the lump machinery puddle evenly, promptly get nitrogen synergistic agent.
Described cyanamide calcium is the commercially available prod, and it is a grey black look oiliness particle, and the nitrogenous 17-23% of cyanamide calcium contains calcium oxide 40-50%, and pH is at 11.0-12.5.Described zeolite is the commercially available prod that natural zeolite is crossed the 60-100 mesh sieve after crushed, main chemical compositions is by weight: silicon-dioxide 64-69%, titanium dioxide 0.08-0.13%, aluminium sesquioxide 12-13%, ferric oxide 0.8-1.5%, magnesium oxide 0.1-1.2%, calcium oxide 1.7-3.6%, sodium oxide 0.3-2.6%, potassium oxide 1.1-3.0%, loss on ignition 6.2-11.0%.Physical and chemical index reaches following standard: ammonium exchange capacity 1000-2000 mmole/kilogram, pH value 7.2-9.0.Described brown coal are the commercially available prod, and as the brown coal product of Inner Mongolia Autonomous Region Huolin Gol Coal Production, main weight is composed as follows: carbon containing 70-80%, hydrogen 5-6%, nitrogen and oxygen 16-27%.
The present invention has following advantage:
1. technology of the present invention is simple, implements easily, not only is fit to batch production production, also is fit to individual producer and produces.
2. raw material abundance of the present invention, used main raw material is cheap, and the market value of brown coal per ton is about 100 yuan, and fertilizer additive is a 300-500 unit with natural zeolite market value per ton.
3. the composition of raw materials among the present invention is reasonable, every kind of raw material all has distinctive effect: selected cyanamide calcium has characteristics such as noresidue, easy decomposition among (1) the present invention, it itself is a kind of nitrogen manure, simultaneously, cyanamide calcium is met water generates cyanogen ammonia, dicyandiamide, can suppress the activity of nitrobacteria in the soil, hinders nitrification, make the ammonium nitrogen in being manured into soil be difficult for being converted into nitric nitrogen, absorb thereby be kept in the soil or with the form of ammonium ion more by crop.Cyanamide calcium has strong basicity, can in and protected horticultural vegetable field soil acidity, prevent soil acidification.(2) natural zeolite has very strong ion-exchange and ion adsorption capacity, but active adsorption ammonium ion, nitrate radical and other positively charged ions, effectively improve the utilization ratio of chemical fertilizer and organic fertilizer, improve soil base exchange capacity 10-15%, in and protected horticultural vegetable field soil in acidity, making in the soil obviously increases greater than 0.25 millimeter coacervate content.(3) brown coal contain higher humic acids, can provide organic nutrient for plant-growth, and can effectively reduce the soil weight, improve air permeability, water-permeable and the water-retentivity of soil, can effectively prevent nitrate leaching migration in the soil, polluted underground water;
4. the present invention is an organic and inorganic mating type nitrogen synergistic agent, can play the slow combination of nutrition speed, and fertilizer nutrient slowly discharges, and improves utilization rate of fertilizer; The corresponding input that reduces chemical fertilizer, and can improve soil physical and chemical property, improve fertility.
Embodiment
Embodiment 1
Nitrogen synergistic agent: 20 kilograms of cyanamide calcium (nitrogenous 20%), 40 kilograms in 40 kilograms of zeolite powders and brown coal.
Described cyanamide calcium is the commercially available prod, and product reaches following standard: nitrogenous 17-23%, contain calcium oxide 40-50%, and pH is at 11.0-12.5; Described brown coal are the brown coal of Inner Mongolia Autonomous Region Huolin Gol Coal Production; Described zeolite powder is the commercially available prod that natural zeolite is crossed the 60-100 mesh sieve after crushed, and its ammonium exchange capacity is 1400 mmole/kilograms, pH value 8.0.
The preparation method: with 20 kilograms (nitrogenous 20%), 40 kilograms of zeolite powders are puddled evenly by machinery, then in mixture, add 40 kilograms of brown coal in the lump machinery puddle evenly, promptly get nitrogen synergistic agent.
During its operation: because cyanamide calcium is powdery or particulate state, its dust is harmful, therefore should note following item during concrete operations: operator must wear eye shield, mouth mask, rubber gloves during making, wear trousers long sleeves operation clothing, do not have damaged boots, in order to avoid cyanamide calcium directly contacts with human body skin.In a single day cyanamide calcium contact skin, use soap, flushing with clean water immediately; As be strayed into eyes, in time use flushing with clean water.To arrive when serious in time to send to hospital and implement treatment.Operator must not drink any beverage that contains alcohol in 20 hours before and after operation.
Embodiment 2
Difference from Example 1 is proportion of raw materials difference to some extent, and the preparation method is with embodiment 1.
| Numbering | Cyanamide calcium (kilogram) | Natural zeolite (kilogram) | Brown coal (kilogram) |
| 2 | 20 | 30 | 50 |
| 3 | 20 | 50 | 30 |
| 4 | 10 | 45 | 45 |
| 5 | 15 | 40 | 45 |
| 6 | 15 | 45 | 50 |
| 7 | 25 | 35 | 40 |
| 8 | 25 | 40 | 35 |
| 9 | 30 | 35 | 35 |
| 10 | 30 | 30 | 40 |
| 11 | 30 | 40 | 30 |
Application examples 1
Selecting working life is 3 of the facilities vegetable booths in 10 years, establishes totally 12 of 4 meters * 5 meters sub-districts for every, and test being provided with 4 processing, wherein 31 is contrast in order to apply the amendment among the embodiment 1, each is handled 3 times and repeats.Evenly apply 8000 kilograms of chicken manures that become thoroughly decomposed according to per 667 square metres, chemical fertilizer is Nitrogen, Phosphorus and Potassium (nitrogenous, Vanadium Pentoxide in FLAKES, potassium oxide are 15%), test in the processing by applying synergy dosage difference, corresponding minimizing Nitrogen, Phosphorus and Potassium consumption 10%, 20% and 30%.
Plant cucumber 11 the end of month, require to carry out the management of water, gas, agricultural chemicals routinely, append by the conventional mode of production of peasant household and dash fertilising, following table is handled and be the results are shown in test.
Test-results shows that using embodiment 1 synergistic agent can significantly increase cucumber yield, improves the utilization ratio of nitrogen.Per 667 square metres apply the total amount that the nitrogen total amount is meant fertilizer nitrogen and the contained nitrogen of synergistic agent itself; The increase and decrease of nitrogen utilization efficiency is based on above-mentioned nitrogen total amount relatively, it is identical to suppose that each handles results cucumber nitrogen content, by minusing calculate nitrogen utilization efficiency, because soil basic condition basically identical, application of organic fertilizers quantity unanimity is so nitrogen utilization efficiency is only based on the nitrogen in fertilizer nitrogen and the synergistic agent.Use 20 kilograms, 40 kilograms and 60 kilograms of embodiment 1 synergistic agent, under the corresponding condition that subtracts consumption 10%, 20% to fertilize and 30%, cucumber yield increases production 9.19%, 11.64% and 14.24% compared with the control respectively.The nitrogen utilization efficiency comparison is according to increasing by 9.8%, 13.36% and 17.61% respectively relatively.
Claims (4)
1. a nitrogen synergistic agent for intensive vegetable filed is characterized in that: be cyanamide calcium 10-30%, zeolite powder 30-50% and brown coal 30-50% by weight percentage.
2. by the described nitrogen synergistic agent for intensive vegetable filed of claim 1, it is characterized in that: described zeolite powder is that natural zeolite is crossed the 60-100 mesh sieve after crushed.
3. preparation method by the described nitrogen synergistic agent for intensive vegetable filed of claim 1, it is characterized in that: by weight percentage 10-30% cyanamide calcium and 30-50% zeolite powder are puddled evenly by machinery, then in mixture, add the 30-50% brown coal in the lump machinery puddle evenly, promptly get nitrogen synergistic agent.
4. by the described nitrogen synergistic agent for intensive vegetable filed of claim 3, it is characterized in that: described zeolite powder is that natural zeolite is crossed the 60-100 mesh sieve after crushed.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100125416A CN101372429A (en) | 2007-08-22 | 2007-08-22 | Nitrogen synergistic agent for intensive vegetable filed and preparation thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100125416A CN101372429A (en) | 2007-08-22 | 2007-08-22 | Nitrogen synergistic agent for intensive vegetable filed and preparation thereof |
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| CN101372429A true CN101372429A (en) | 2009-02-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249820A (en) * | 2011-06-08 | 2011-11-23 | 深圳市芭田生态工程股份有限公司 | Long-acting slow release nitrogen combined depressant applied to acid soil and long-acting slow release nitrogen fertilizer prepared from same |
| CN103664360A (en) * | 2013-11-28 | 2014-03-26 | 安徽恒进农业发展有限公司 | Special fertilizer for sweet potatoes |
| CN106577128A (en) * | 2016-12-15 | 2017-04-26 | 李玉龙 | Cutting seedling growing method for peach |
| CN107501012A (en) * | 2017-08-14 | 2017-12-22 | 山东省农业科学院农业资源与环境研究所 | A kind of composite of intensive vegetable filed barrier nitrogen phosphorus leaching loss and application |
-
2007
- 2007-08-22 CN CNA2007100125416A patent/CN101372429A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249820A (en) * | 2011-06-08 | 2011-11-23 | 深圳市芭田生态工程股份有限公司 | Long-acting slow release nitrogen combined depressant applied to acid soil and long-acting slow release nitrogen fertilizer prepared from same |
| CN102249820B (en) * | 2011-06-08 | 2013-08-21 | 深圳市芭田生态工程股份有限公司 | Long-acting slow release nitrogen combined depressant applied to acid soil and long-acting slow release nitrogen fertilizer prepared from same |
| CN103664360A (en) * | 2013-11-28 | 2014-03-26 | 安徽恒进农业发展有限公司 | Special fertilizer for sweet potatoes |
| CN103664360B (en) * | 2013-11-28 | 2016-03-23 | 安徽恒进农业发展有限公司 | A kind of special fertilizer for sweet potato |
| CN106577128A (en) * | 2016-12-15 | 2017-04-26 | 李玉龙 | Cutting seedling growing method for peach |
| CN107501012A (en) * | 2017-08-14 | 2017-12-22 | 山东省农业科学院农业资源与环境研究所 | A kind of composite of intensive vegetable filed barrier nitrogen phosphorus leaching loss and application |
| CN107501012B (en) * | 2017-08-14 | 2020-09-25 | 山东省农业科学院农业资源与环境研究所 | Composite material for preventing nitrogen and phosphorus leaching loss of protected vegetable field and application thereof |
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Open date: 20090225 |