CN105732225A - Water-retaining agent and compound functional fertilizer thereof - Google Patents
Water-retaining agent and compound functional fertilizer thereof Download PDFInfo
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- CN105732225A CN105732225A CN201610102053.3A CN201610102053A CN105732225A CN 105732225 A CN105732225 A CN 105732225A CN 201610102053 A CN201610102053 A CN 201610102053A CN 105732225 A CN105732225 A CN 105732225A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a water-retaining agent and a compound functional fertilizer thereof, and belongs to the technical field of agricultural fertilizers. The water-retaining agent takes acrylamide, acrylic acid, 2-acrylamide octa-alkyl sulphonic acid and dimethyl diallyl ammonium chloride as monomers, takes potassium persulfate and sodium hydrogen sulfite as initiators and is a polypropylene acid amide polymer formed through polymerization; the compound functional fertilizer is prepared from urea, monoammonium phosphate, potassium sulfate, the water-retaining agent, potassium humate, magnesium sulfate, borax and ammonium molybdate. By means of the water-retaining agent and the compound functional fertilizer thereof, complex integration of the fertilizer and the water-retaining is achieved, the water-retaining fertilizer capable of increasing the water and fertilizer utilization rate is developed, and the water-retaining agent and the compound functional fertilizer thereof have the advantages that the environment is protected, the oil structure is improved, the crop stress-resistance capacity is enhanced, and the product quality is improved.
Description
Technical field
The invention belongs to multi-Functional Fertilizers technical field, be specifically related to a kind of water-retaining agent and composite functional fertilizer thereof.
Background technology
Water, fertilizer are two key factors affecting agricultural production.But, on the one hand, conventional water soluble chemical fertilizer utilization ratio is low, the serious significant problem having become restriction agricultural production efficiency and having affected environment of chemical fertilizer loss, and new-type fertilizer is then to improve chemical fertilizer utilization ratio, reduces the effective technology of fertilizer loss.On the other hand, the urgency making agricultural water conservation in short supply of water resource strengthens day by day.Dry farming and water-saving agriculture use water-retaining agent become an important water-saving technology.It is to improve utilization rate of fertilizer, the important technology of water-saving and synergistic that fertilizer and water-retaining agent composite integrated develop water-retaining type multi-Functional Fertilizers, and has become the up-to-date international direction of fertilizer research.
The application of water-retaining type multi-Functional Fertilizers, reduces agriculture production cost, has reached the purpose of water conservation fertilizer conservation, provides compound fertilizer's new varieties of super quality and competitive price for peasant.The production equipment of its uniqueness and technical recipe, make compound fertilizer can embody its own advantage rapidly.This product particle is full, and intensity is high, moisture is low, nutrient equilibrium, dissolves effective, does not lumps, is easy to mechanized application, and peasant uses then, just can be benefited then.The Development and Production of this product, has saved the energy, decreases environmental pollution.
Domestic application exploitation is started late, this technology has made the efficient nutritious water-preserving agent by oneself, after using, Seedling biomass is improved and have certain facilitation, this the efficient nutritious water-preserving agent is with acrylamide and attapulgite clay as raw material, Compound super absorbent, inhales pure water multiplying power up to 450-800g/g.
Summary of the invention
The present invention provides a kind of water-retaining agent and composite functional fertilizer, its scientific formulation, good water-retaining property, has saved the energy, has decreased environmental pollution.
The efficient application water-retaining agent production program of the present invention is as follows:
1, water-retaining agent makes
Patented technology carries out ratio choosing to dissimilar and particle diameter water-retaining agent characteristic, by analytical data based on the basic performance indications such as mensuration water-retaining agent water absorbent rate, rate of water absorption, injection index, the water-retaining agent water retention property in soil, determine with acrylamide (AM), acrylic acid (AA), 2-acrylamido eight alkyl sulfonic acid (HAMC8And dimethyl diallyl ammonium chloride (DMDAAC) is monomer, potassium peroxydisulfate (K S)2S2O8) and sodium sulfite (NaHSO3) it is initiator, use water solution polymerization process, synthesize anti-salt instant capacity polymer under certain condition.
Detailed process is as follows:
Add a certain amount of acrylic acid (AA) and 2-acrylamido eight alkyl sulfonic acid (HAMC the most in a kettle.8And deionized water S).
2. be passed through nitrogen protection, and open stirring to solution mix homogeneously, regulate pH value with NaOH.
3. a certain proportion of acrylamide (AM) and the deionized water solution of dimethyl diallyl ammonium chloride (DMDAAC) are added.
4., more than deoxygenation half an hour, assigned temperature is then heated to.
5. a certain amount of redox system initiator K it is slowly added dropwise2S2O8-NaHSO3, under agitation react a period of time, obtain product as a form of gel.
6. raise uniform temperature and be incubated a period of time；
7., after reaction terminates, product is taken out, clipped, it is dried 2 hours under 75 degrees Celsius, pulverizes and i.e. obtain polyacrylic acid amide water-retaining agent, be placed in exsiccator and save backup.
2, water conservation composite functional method for preparing fertilizer
The raw material components of water conservation composite functional fertilizer of the present invention is as follows, is weight portion:
Carbamide 120-450 part, MAP 90-250 part, potassium sulfate 200-380 part, water-retaining agent 50-80 part, potassium humate 10-50 part, magnesium sulfate 10-40 part, Borax 20-30 part, ammonium molybdate 10-15 part；
Above-mentioned raw materials is commercially available, wherein:
Carbamide is small particle urea, and N >=46.2%, particle diameter is at 0.85mm-2.80mm；
MAP is common powdery monoammonium phosphate, nutrient 53%, N >=10%, P2O5≥43%；
Potassium sulfate, magnesium sulfate are powder or grain；
In potassium humate: humic acids (butt meter) >=55%, potassium (K2O butt meter) 8-11%；
High intensity water-retaining agent is polyacrylic acid amide polymer, and this mixture outward appearance is light amber liquid, solids content 75.0-85%, density >=1.21g/cm, pH=3.0-4.2 when 20 DEG C；Above-mentioned content is mass percent.
Further preferred water keeping fertilizer, raw material components is as follows, is weight portion:
The raw material components of the most described fertilizer is as follows: carbamide 150-300 part, MAP 100-200 part, potassium sulfate 200-350 part, water-retaining agent 50-70 part, potassium humate 10-15 part, magnesium sulfate 15-33 part, Borax 20-30 part, ammonium molybdate 10-15 part.
Most preferably water keeping fertilizer, raw material components is as follows, is weight portion:
300 parts of carbamide, MAP 200 parts, potassium sulfate 350 parts, water-retaining agent 70 parts, potassium humate 15 parts, 20 parts of magnesium sulfate, Borax 30 parts, ammonium molybdate 15 parts.
Its concrete technological process of production is as follows:
By water-retaining component add certain weight ratio magnesium sulfate, water-retaining agent, Borax, ammonium molybdate, agitator speed is 100r/min, isothermal reaction 90min, environmentally friendly water-keeping material.Then utilize rotary drum fluid-bed technique that water-keeping material is coated to the granular urea of particle diameter 2.2-4.2mm, make water conservation carbamide.Wherein, the weight ratio controlling water-keeping material and coating granulated fertilizer controls as 4:100.Finally, take MAP, potassium sulfate carries out a certain proportion of mixing with potassium humate and mixes, the water keeping fertilizer made.
The invention have the advantages that
1, achieve fertilizer and water-retaining agent composite integrated, develop the water keeping fertilizer improving water and fertilizer utilization
Composite integrated pelletize process is carried out as fertilizer nutrient carrier so that it is organically adsorbed by the nutrient of fertilizer and combine, delaying the release of fertilizer nutrient, reduce the loss of fertilizer nutrient with water-retaining agent.Simultaneously because the water sorption of water-keeping material, it can be when soil moisture is many (such as rainfall or irrigation), absorb and preserve moisture, moisture is discharged when soil moisture reduces, ensure that plant is in whole production process needed for water-fertilizer nutrient, reach to improve water, fertile utilization rate simultaneously, reduce the multipurpose of environmental pollution.This technology, by the applied research to water-retaining agent, have found theoretical foundation and data supporting to chemical water-saving soil moisture conservation technology and the research to the water-fertilizer conditioning technology of " promoting fertilizer with water, with fertile water transfer ".
2, water keeping fertilizer properties of product are excellent
Water keeping fertilizer is according to fertilized soil nutrient situation on nutrient, and the regulation of fertilizer requirement in conjunction with fertilising crop carries out scientific formula so that it is the nutrient required at the period of duration that crop is different is controlled release；Fertilising can accomplish single-dose application, be not required to topdress；Can accomplish to improve water and fertilizer utilization in benefit, saving of labor saves fertilizer, improves again the utilization rate of chemical fertilizer simultaneously, alleviates the chemical fertilizer pollution to soil and groundwater system.Its water-retaining agent is biodegradable in soil, and environmentally friendly, and the composition of degraded can effectively improve the structure of soil.
3, add required middle trace element, strengthen anti-adversity ability, improve product and quality
The present invention with the addition of the middle trace element that appropriate plant growth is required, and needed for can supplementing plant growth, middle trace element, can strengthen the resistance against diseases of root of the crop, stem, leaf, increases crop photosynthesis, improves the activity of enzyme, and then improve crop yield and quality.
Accompanying drawing explanation
The preparation flow figure of Fig. 1 water-retaining agent.
Detailed description of the invention
Embodiment one:
Water keeping fertilizer (N-P2O5-K2O:28-6-6) preparation method
By water-retaining component add 20 parts of magnesium sulfate of weight ratio, 70 parts of water-retaining agent, 30 parts of Boraxs, 15 parts of ammonium molybdates respectively based on, agitator speed is 100r/min, isothermal reaction 90min, environmentally friendly water-keeping material.Then utilize rotary drum fluid-bed technique that water-keeping material is coated to the granular urea of 300 parts of particle diameter 2.2-4.2mm, make water conservation carbamide.Wherein, the weight ratio controlling water-keeping material and coating granulated fertilizer controls as 4:100.Finally, take 200 parts of MAPs, 350 parts of potassium sulfate and 15 parts of potassium humates and carry out a certain proportion of mixing mixing, make the water keeping fertilizer of 28-6-6.
Embodiment two
Water keeping fertilizer (N-P2O5-K2O:26-12-10) preparation method
By water-retaining component add 30 parts of magnesium sulfate of weight ratio, 80 parts of water-retaining agent, 30 parts of Boraxs, 15 parts of ammonium molybdates respectively based on, agitator speed is 100r/min, isothermal reaction 90min, environmentally friendly water-keeping material.Then utilize rotary drum fluid-bed technique that water-keeping material is coated to the granular urea of 300 parts of particle diameter 2.2-4.2mm, make water conservation carbamide.Wherein, the weight ratio controlling water-keeping material and coating granulated fertilizer controls as 4:100.Finally, take 230 parts of MAPs, 290 parts of potassium sulfate and 45 parts of potassium humates and carry out a certain proportion of mixing mixing, make the water keeping fertilizer of 28-12-10.
Comparative example: common fertilizer (28-6-6), Stanley water keeping fertilizer (28-6-6), carbamide
Experimental plot is in patch stubble sowing on June 10th, 2014, with water-retention fertilizer (N-P2O5-K2O:28-6-6), the compound fertilizer (N-P that local tradition is used2O5-K2And carbamide (containing N:46%) is test material O:28-6-6).Test each process once to apply by scheme requirement division of cells, Herba Cladoniae verticillatae mouth phase in Semen Maydis Herba Cladoniae verticillatae mouth phase July 8, ditch spread.Test sets 6 fertilizer treatment (see Table 2), and each process repeats for three times, uses the group arrangement of random district, and often processing plot area is 10m × 4m, every community corn seeding 7 row, line-spacing 50cm, spacing in the rows 20cm, individual plant, 350 strains/community.Gathered in the crops October 15, trophophase 127 days.
Table 1 test processes
Being converted into per mu yield by the yield of each community, each process volume analysis the results are shown in Table 2.By table 2 it can be seen that to process 3(water-retention fertilizer 28-6-6) per mu yield the highest, for 578.12kg, ratio uses every mu of volume increase 22.84% of process 1 of carbamide, than the every mu of volume increase 8.66% of process 2 using conventional 28-6-6 fertilizer；Next to that process 4(50% conventional fertilizer+50% water-retention fertilizer), for 568.78kg/ mu, ratio uses every mu of volume increase 20.86% of process 1 of carbamide, than the every mu of volume increase 6.91% of process 2 using conventional 28-6-6 fertilizer；Process 5(tax gross-up expense decrement fertilising 10%), process 6(water-retention fertilizer decrement fertilising 20%) all 1 significantly increase production than processing, and be more or less the same with the yield of process 2.
The impact that corn yield is added up by table 2 different fertilization
Claims (5)
1. a water conservation composite functional fertilizer, it is characterized in that, the raw material components of the most described fertilizer is as follows: carbamide 120-450 part, MAP 90-250 part, potassium sulfate 200-380 part, water-retaining agent 50-80 part, potassium humate 10-50 part, magnesium sulfate 10-40 part, Borax 20-30 part, ammonium molybdate 10-15 part；
Above-mentioned raw materials is commercially available, wherein:
Described carbamide is small particle urea, and N >=46.2%, particle diameter is at 0.85mm-2.80mm；
Described MAP is common powdery monoammonium phosphate, nutrient 53%, N >=10%, P2O5≥43%；
Described potassium sulfate, magnesium sulfate are powder or grain；
In described potassium humate: humic acids >=55%, potassium 8-11%；
Above-mentioned content is mass percent.
2. water conservation composite functional fertilizer as claimed in claim 1, it is characterized in that, the raw material components of the most described fertilizer is as follows: carbamide 150-300 part, MAP 100-200 part, potassium sulfate 200-350 part, water-retaining agent 50-70 part, potassium humate 10-15 part, magnesium sulfate 15-33 part, Borax 20-30 part, ammonium molybdate 10-15 part.
3. water conservation composite functional fertilizer as claimed in claim 2, it is characterized in that, the raw material components of the most described fertilizer is as follows: 300 parts of carbamide, MAP 200 parts, potassium sulfate 350 parts, water-retaining agent 70 parts, potassium humate 15 parts, 20 parts of magnesium sulfate, Borax 30 parts, ammonium molybdate 15 parts.
4. the water conservation composite functional fertilizer as described in any one of claim 1-3, it is characterized in that, the step of preparation process of described fertilizer is: add certain weight ratio magnesium sulfate, water-retaining agent, Borax, ammonium molybdate by water-retaining component, agitator speed is 100r/min, isothermal reaction 90min, environmentally friendly water-keeping material；Then utilizing rotary drum fluid-bed technique that water-keeping material is coated to the granular urea of particle diameter 2.2-4.2mm, make water conservation carbamide, wherein, the weight ratio controlling water-keeping material and coating granulated fertilizer controls as 4:100；Finally, take MAP, potassium sulfate carries out a certain proportion of mixing with potassium humate and mixes, the water keeping fertilizer made.
5. the water conservation composite functional fertilizer as described in any one of claim 1-3, it is characterized in that, described water-retaining agent is with acrylamide, acrylic acid, 2-acrylamido eight alkyl sulfonic acid and dimethyl diallyl ammonium chloride as monomer, potassium peroxydisulfate and sodium sulfite are initiator, use water solution polymerization process to be prepared from；
Concrete preparation process is as follows:
Add a certain amount of acrylic acid and 2-acrylamido eight alkyl sulfonic acid and deionized water the most in a kettle.；
2. be passed through nitrogen protection, and open stirring to solution mix homogeneously, regulate pH value with NaOH；
3. the deionized water solution of a certain proportion of acrylamide and dimethyl diallyl ammonium chloride is added；
4., more than deoxygenation half an hour, assigned temperature is then heated to；
5. a certain amount of redox system initiator K it is slowly added dropwise2S2O8-NaHSO3, under agitation react a period of time, obtain product as a form of gel；
6. raise uniform temperature and be incubated a period of time；
7., after reaction terminates, product is taken out, clipped, it is dried 2 hours under 75 degrees Celsius, pulverizes and i.e. obtain polyacrylic acid amide water-retaining agent.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106083378A (en) * | 2016-06-22 | 2016-11-09 | 沈阳农业大学 | A kind of fertilizers improving Soil structure and preparation method thereof |
| CN106748486A (en) * | 2016-12-28 | 2017-05-31 | 新昌县奥而特农业科技有限公司 | A kind of water keeping fertilizer and preparation method thereof |
| CN107021813A (en) * | 2017-04-14 | 2017-08-08 | 高青山 | A kind of late rice plantation herb fermenting organic slow-release fertilizer and preparation method thereof |
| CN107739276A (en) * | 2017-10-20 | 2018-02-27 | 刘青亚 | A kind of production method for the Nutrition Soil that permeability is good, water-retaining property is good |
| CN111908974A (en) * | 2020-08-10 | 2020-11-10 | 安徽肥地肥业有限责任公司 | Special organic fertilizer for tea and preparation process thereof |
| CN111978123A (en) * | 2020-09-10 | 2020-11-24 | 贵州天宝丰原生态农业科技有限公司 | Organic-inorganic compound fertilizer for increasing rice yield and preparation method thereof |
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| CN107021813A (en) * | 2017-04-14 | 2017-08-08 | 高青山 | A kind of late rice plantation herb fermenting organic slow-release fertilizer and preparation method thereof |
| CN107739276A (en) * | 2017-10-20 | 2018-02-27 | 刘青亚 | A kind of production method for the Nutrition Soil that permeability is good, water-retaining property is good |
| CN111908974A (en) * | 2020-08-10 | 2020-11-10 | 安徽肥地肥业有限责任公司 | Special organic fertilizer for tea and preparation process thereof |
| CN111978123A (en) * | 2020-09-10 | 2020-11-24 | 贵州天宝丰原生态农业科技有限公司 | Organic-inorganic compound fertilizer for increasing rice yield and preparation method thereof |
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Application publication date: 20160706 |