CN103641637A - Sustained-release compound fertilizer and preparation method thereof - Google Patents
Sustained-release compound fertilizer and preparation method thereof Download PDFInfo
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- CN103641637A CN103641637A CN201310712799.2A CN201310712799A CN103641637A CN 103641637 A CN103641637 A CN 103641637A CN 201310712799 A CN201310712799 A CN 201310712799A CN 103641637 A CN103641637 A CN 103641637A
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Abstract
The invention discloses a sustained-release compound fertilizer and a preparation method thereof. The sustained-release compound fertilizer is prepared from the following raw materials in parts by weight: 20 to 30 parts of urea, 30 to 40 parts of monoammonium phosphate, 5 to 10 parts of calcium superphosphate, 10 to 15 parts of potassium chloride, 1 to 2 parts of zinc sulfate, 1 to 2 parts of manganese sulfate, 2 to 3 parts of ferrous sulfate, 0.5 to 1.5 parts of borax, 3 to 5 parts of humic acid, 8 to 12 parts of modified clay and 4 to 6 parts of chitosan coating agent. The fertilizer has high sustained-release performance, double good functions of pest killing and water retention, high and long-lasting fertilizer efficiency and high nutrition utilization rate, a coating material is easy to degrade, pollution is completely avoided, the rapid growth of crops can be promoted, the stress resistance of the crops can be improved, the ecological balance of soil can be adjusted, the quality of agricultural products can be improved, and both production and income of the agricultural products are increased. Sources of the raw materials are extensive, and a production process is simple, convenient to operate, low in equipment investment, low in cost and applicable to industrial production, and has a broad market prospect.
Description
Technical field
the present invention relates to a kind of slow-release compound fertilizer and preparation method thereof, belong to technical field of agricultural fertilizers.
Background technology
China Shi Yige large agricultural country, chemical fertilizer is being brought into play very important effect in agriculture production, after the chemical fertilizer of use is manured into soil at present, and dissolving rapidly, decomposition, volatilization, loss, cause plant recovery of nutrient low, crop is incompatible to providing of nutrient to the demand of nutrient and chemical fertilizer; Not only cause the waste of resource, the raising of agricultural cost, the environment structure that the chemical fertilizer of loss is depended on for existence to the mankind for the pollution of water body, atmosphere and edatope threatens.Therefore, slow-release compound fertilizer becomes the target of insider's research.Yet existing slow-release compound fertilizer is because of complex manufacturing, and manufacturing cost is high, coated fertilizer hard degradation, contaminate environment and failing by large scale application.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide that a kind of utilization rate of fertilizer is high, coated fertilizer is easy to degraded, good water-retaining property, non-environmental-pollution, cost are low, the simple slow-release compound fertilizer of production technique and preparation method thereof.
For achieving the above object, the technical solution used in the present invention is as follows:
A slow-release compound fertilizer, is made by the raw material of following weight part: urea 20-30, monoammonium phosphate 30-40, calcium superphosphate 5-10, Repone K 10-15, zinc sulfate 1-2, manganous sulfate 1-2, ferrous sulfate 2-3, borax 0.5-1.5, humic acid 3-5, modified clay powder 8-12, chitosan coated dose of 4-6.
The preparation method of described modified clay powder is as follows: a, take attapulgite, illite, diatomite mix by weight 3-5:2-3:1-2, wet ball grinding 24-36h, dry, at 820-840 ℃, calcine 1-2h, then continue to be warming up to 1220-1260 ℃, calcining 30-40min, shrend, take out wet ball grinding 12-24h, cross 100-150 mesh sieve; B, the powder after sieving is added to water making beating make the slurries that concentration is 50-60%, add the sodium laurylsulfate of the tripoly phosphate sodium STPP of 3-4%, the citric acid of 2-3% and 1-2%, speed lapping 10-15min, is spray dried to powder; C, to get the solid content that is equivalent to attapulgite weight 15-20% be 40-45% Nano silica sol, add the sodium polyacrylate of 5-10%, the carboxymethyl cellulose of plant ash 2-3% of the polyvinyl alcohol of 4-6%, 3-4%, the sodium lauryl sulphate of 0.5-1%, stir, then the powder that adds step b to make, stir into pasty state, dry, pulverize, porphyrize, crosses 150-200 mesh sieve.
The described preparation method of chitosan coated dose is as follows: a, the HAc solution that is 1% by volume fraction slowly dissolve chitosan, and being made into concentration is the chitosan gum liquid solution of 10-15g/L; In b, chitosan gum liquid solution, add the sodium alginate of 3-5%, the Sumstar 190 of the polyvinylpyrrolidone of 2-3%, 1-2%, the shiu oil of the pamorusa oil of 1-2%, 0.5-1% and the tween 80 of 0.5-1% stir.
A preparation method for slow-release compound fertilizer, comprises the following steps:
(1) by formulation ratio, urea, monoammonium phosphate, calcium superphosphate, Repone K, zinc sulfate, manganous sulfate, ferrous sulfate, borax are mixed, pulverize, cross 100-150 mesh sieve, then add humic acid and modified clay powder, fully mix, send into granulation in granulating disc tablets press, particle diameter is controlled at 2-3mm again;
(2) the above-mentioned particle making is sent in coating machine, chitosan coated dose surperficial by the even sprayed particle of atomizing nozzle, dries, and packing is finished product.
Beneficial effect of the present invention:
Fertilizer of the present invention has good sustained release performance, can be according to the different steps of plant growth the demand to nutrient, control fertilizer efficiency rate of release, for plant growth in good time, appropriate nutrient is provided, also there is good desinsection and water conservation dual-use function, improvement Soil structure, eliminate soil compaction, increase soil fertility, reduce the loss that fertilizer causes because of volatilization, leaching, reduce soil-borne disease, for crop growth provides a good environment.Fertilizer efficiency of the present invention is high and lasting, and plant recovery of nutrient is high, and coated fertilizer is easy to degraded, completely pollution-free, can promote farm crop Fast Growth, improves the resistance of farm crop, regulates soil ecology balance, improves quality of agricultural product, realizes agricultural-food increasing both production and income.Raw material sources of the present invention are extensive, and production technique is simple, easy to operate, and facility investment is few, with low cost, are applicable to large-scale industrialization and produce, and market outlook are wide.
Embodiment
a slow-release compound fertilizer, is made by the raw material of following weight (kg): urea 25, monoammonium phosphate 40, calcium superphosphate 7, Repone K 10, zinc sulfate 1.5, manganous sulfate 1, ferrous sulfate 2, borax 1, humic acid 4, modified clay powder 10, chitosan coated dose 5.
The preparation method of described modified clay powder is as follows: a, take attapulgite, illite, diatomite mix by weight 4:3:2, wet ball grinding 36h, dry, at 840 ℃, calcine 1h, then continue to be warming up to 1260 ℃, calcining 30min, shrend, take out wet ball grinding 24h, cross 150 mesh sieves; B, the powder after sieving is added to water making beating, and to make concentration be 60% slurries, adds 4% tripoly phosphate sodium STPP, 3% citric acid and 2% sodium laurylsulfate, and speed lapping 15min, is spray dried to powder; C, to get the solid content that is equivalent to attapulgite weight 20% be 45% Nano silica sol, add the carboxymethyl cellulose of 8% sodium polyacrylate, 5% polyvinyl alcohol, 3% plant ash 2%, 0.7% sodium lauryl sulphate, stir, then the powder that adds step b to make, stir into pasty state, dry, pulverize, porphyrize, crosses 200 mesh sieves.
The described preparation method of chitosan coated dose is as follows: a, the HAc solution that is 1% by volume fraction slowly dissolve chitosan, and being made into concentration is the chitosan gum liquid solution of 15g/L; In b, chitosan gum liquid solution, add 4% sodium alginate, 3% polyvinylpyrrolidone, 1.5% Sumstar 190,1% pamorusa oil, 1% shiu oil and 0.6% tween 80, stir.
A preparation method for slow-release compound fertilizer, comprises the following steps:
(1) by formulation ratio, urea, monoammonium phosphate, calcium superphosphate, Repone K, zinc sulfate, manganous sulfate, ferrous sulfate, borax are mixed, pulverize, cross 150 mesh sieves, then add humic acid and modified clay powder, fully mix, send into granulation in granulating disc tablets press, particle diameter is 2.5mm again;
(2) the above-mentioned particle making is sent in coating machine, chitosan coated dose surperficial by the even sprayed particle of atomizing nozzle, dries, and packing is finished product.
field test:
1, test is processed and is arranged
2 processing, test group: slow-release compound fertilizer of the present invention are established in test altogether; Control group: Common compound fertilizer; Rate of fertilizer application is 70kg/hm
2, 3 repetitions, community area 20m are established in each processing
2, random alignment, arranges protection row around.
2, test basic condition
Test in carrying out in certain wheat planting base, experimental field soil type is moisture soil, soil physico-chemical property: pH value is 8.22, organic 16.4g/kg, alkali-hydrolyzable nitrogen 82.7 mg/kg, rapid available phosphorus 7.2 mg/kg, available potassium, 191.3mg/kg, soil medium fertility level.For examination wheat breed week wheat 22.Each fertilizer of processing all does that base manure is disposable to be applied, and the middle and later periods no longer topdresses.Test in sowing on October 15th, 2011, application rate 10kg/hm
2.Each processing cultivation and field management measure are in full accord, on June 9th, 2012, gather in the crops.
3, experimental result:
The impact of table 1 different fertilizer on wheat economic characters
As shown in Table 1, test group and control group comparison, volume increase 81.1kg/hm
2, amplification 19.25%, average spike number increases by 10.4 ten thousand fringes, and average grain number per spike increases by 6.3, and thousand seed weight increases 4.1g, and disease and pest incidence reduces 69.81%.Illustrate and execute significantly wheat growth-promoting of slow release fertilizer of the present invention, reduce the generation of disease and pest, improve wheat yield and improve wheat quality, there is important economic benefit.
Claims (2)
1. a slow-release compound fertilizer, it is characterized in that, by the raw material of following weight part, made: urea 20-30, monoammonium phosphate 30-40, calcium superphosphate 5-10, Repone K 10-15, zinc sulfate 1-2, manganous sulfate 1-2, ferrous sulfate 2-3, borax 0.5-1.5, humic acid 3-5, modified clay powder 8-12, chitosan coated dose of 4-6;
The preparation method of described modified clay powder is as follows: a, take attapulgite, illite, diatomite mix by weight 3-5:2-3:1-2, wet ball grinding 24-36h, dry, at 820-840 ℃, calcine 1-2h, then continue to be warming up to 1220-1260 ℃, calcining 30-40min, shrend, take out wet ball grinding 12-24h, cross 100-150 mesh sieve; B, the powder after sieving is added to water making beating make the slurries that concentration is 50-60%, add the sodium laurylsulfate of the tripoly phosphate sodium STPP of 3-4%, the citric acid of 2-3% and 1-2%, speed lapping 10-15min, is spray dried to powder; C, to get the solid content that is equivalent to attapulgite weight 15-20% be 40-45% Nano silica sol, add the sodium polyacrylate of 5-10%, the carboxymethyl cellulose of plant ash 2-3% of the polyvinyl alcohol of 4-6%, 3-4%, the sodium lauryl sulphate of 0.5-1%, stir, then the powder that adds step b to make, stir into pasty state, dry, pulverize, porphyrize, crosses 150-200 mesh sieve;
The described preparation method of chitosan coated dose is as follows: a, the HAc solution that is 1% by volume fraction slowly dissolve chitosan, and being made into concentration is the chitosan gum liquid solution of 10-15g/L; In b, chitosan gum liquid solution, add the sodium alginate of 3-5%, the Sumstar 190 of the polyvinylpyrrolidone of 2-3%, 1-2%, the shiu oil of the pamorusa oil of 1-2%, 0.5-1% and the tween 80 of 0.5-1% stir.
2. the preparation method of slow-release compound fertilizer according to claim 1, is characterized in that comprising the following steps:
(1) by formulation ratio, urea, monoammonium phosphate, calcium superphosphate, Repone K, zinc sulfate, manganous sulfate, ferrous sulfate, borax are mixed, pulverize, cross 100-150 mesh sieve, then add humic acid and modified clay powder, fully mix, send into granulation in granulating disc tablets press, particle diameter is controlled at 2-3mm again;
(2) the above-mentioned particle making is sent in coating machine, chitosan coated dose surperficial by the even sprayed particle of atomizing nozzle, dries, and packing is finished product.
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| CN104030791A (en) * | 2014-05-13 | 2014-09-10 | 马鞍山市心洲葡萄专业合作社 | Soil-hardening-resisting growth-promoting sustained-release composite fertilizer |
| CN104030812A (en) * | 2014-06-11 | 2014-09-10 | 合肥江氏农业科技有限公司 | Nutrient-preserving long-term slow release compound fertilizer containing donkey-hide gelatin residue |
| CN104030789A (en) * | 2014-05-13 | 2014-09-10 | 马鞍山市心洲葡萄专业合作社 | Modified-acrylic-acid coated synergic sustained-release composite fertilizer |
| CN104045420A (en) * | 2014-05-24 | 2014-09-17 | 蚌埠味多多学生营养餐有限公司 | Antibiotic yield-increasing slow-release compound fertilizer containing nano silver coating |
| CN104058847A (en) * | 2014-06-20 | 2014-09-24 | 安徽省巨星肥业有限公司 | Double slow-release compound fertilizer containing brucea javanica oil |
| CN104058820A (en) * | 2014-05-24 | 2014-09-24 | 蚌埠味多多学生营养餐有限公司 | Slow-release compound fertilizer for enhancing soil fertility |
| CN104072268A (en) * | 2014-05-30 | 2014-10-01 | 明光和中工业工程安装有限公司 | Efficient compound fertilizer for greening flowers and preparation method thereof |
| CN104177176A (en) * | 2014-08-12 | 2014-12-03 | 淮南市益农瓜果产销服务有限公司 | Full-nutrition type coated fertilizer for strawberries and preparation method of fertilizer |
| CN104211490A (en) * | 2014-06-23 | 2014-12-17 | 合肥长润农业科技有限公司 | Environmentally-friendly yield increase slow release compound fertilizer |
| CN104311253A (en) * | 2014-09-29 | 2015-01-28 | 成都新柯力化工科技有限公司 | Chitosan controlled release fertilizer microspheres and preparation method thereof |
| CN104355866A (en) * | 2014-11-07 | 2015-02-18 | 青岛西诺农业科技有限公司 | Fertilizer and preparation method thereof |
| CN104774070A (en) * | 2015-01-22 | 2015-07-15 | 湖北广达化工有限责任公司 | Slow release composite fertilizer and preparation method thereof |
| CN104885726A (en) * | 2015-04-30 | 2015-09-09 | 安徽省霍山县启思生态农业有限公司 | Standardized planting method for snakegourd fruit |
| CN105075637A (en) * | 2015-09-07 | 2015-11-25 | 中国科学院微生物研究所 | Potato cultivation method |
| CN105347916A (en) * | 2015-10-30 | 2016-02-24 | 全椒县琪悦家庭农场 | Sterilization soil-improvement slow-release composite fertilizer and preparation method thereof |
| CN105524623A (en) * | 2016-02-01 | 2016-04-27 | 广东省生态环境与土壤研究所（广东省土壤科学博物馆） | Preparation and use methods of slow-release type iron-based biochar soil heavy metal passivator |
| CN106116941A (en) * | 2016-06-17 | 2016-11-16 | 安庆市富江水产养殖有限公司 | A kind of low cost slow release Aquatic product pond pasture and water special fertilizer |
| CN106146086A (en) * | 2016-06-28 | 2016-11-23 | 安徽金联地矿科技有限公司 | A kind of preparation method of the attapulgite mixed fertilizer with slow release effect |
| CN106431644A (en) * | 2016-09-12 | 2017-02-22 | 巢湖春友种业科技有限公司 | Selenium-rich fertilizer for wheat cultivation and preparation method of selenium-rich fertilizer |
| CN106810389A (en) * | 2016-12-14 | 2017-06-09 | 新昌县奥而特农业科技有限公司 | Disease prevention desinsection natural mineral fertilizer and preparation method and application method |
| CN107032878A (en) * | 2017-03-31 | 2017-08-11 | 贵州农浩生物开发有限公司 | A kind of Chinese pennisetum artificial method for planting, plantation the fertilizer of retaining water and releasing nutrients slowly and preparation method thereof |
| CN107935725A (en) * | 2017-12-17 | 2018-04-20 | 李巧珍 | A kind of preparation method of environment-protection type coated water soluble fertilizer |
| CN108064625A (en) * | 2017-12-19 | 2018-05-25 | 芜湖新达园林绿化集团有限公司 | A kind of method for planting for reducing weeping willow pest and disease damage |
| CN108516889A (en) * | 2018-04-28 | 2018-09-11 | 陈建峰 | A kind of coating agent and preparation method thereof |
| CN109665903A (en) * | 2017-10-17 | 2019-04-23 | 中农舜天生态肥业有限公司 | A kind of agriculture zinc peace Novel synergetic compound fertilizer and production method |
| CN110668891A (en) * | 2019-09-25 | 2020-01-10 | 山东宝源生物科技股份有限公司 | Biocontrol type compound additive and application thereof in fertilizer |
| CN111606766A (en) * | 2020-06-02 | 2020-09-01 | 山西省农业科学院园艺研究所 | Compound fertilizer and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528717A (en) * | 2003-10-16 | 2004-09-15 | 华东理工大学 | Coating agent for slow release fertilizer |
| CN101823920A (en) * | 2010-05-18 | 2010-09-08 | 张超 | Preparation method for sustained-release and controlled release compound fertilizer suitable for field crop |
| CN102153103A (en) * | 2010-12-10 | 2011-08-17 | 明光市天骄科技发展有限公司 | Preparation method and application of modified attapulgite clay |
| CN102531759A (en) * | 2010-12-13 | 2012-07-04 | 王海炜 | Slow-release composite fertilizer |
| CN102557810A (en) * | 2010-12-09 | 2012-07-11 | 王海炜 | Degradable slow-release fertilizer coating agent |
-
2013
- 2013-12-23 CN CN201310712799.2A patent/CN103641637A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1528717A (en) * | 2003-10-16 | 2004-09-15 | 华东理工大学 | Coating agent for slow release fertilizer |
| CN101823920A (en) * | 2010-05-18 | 2010-09-08 | 张超 | Preparation method for sustained-release and controlled release compound fertilizer suitable for field crop |
| CN102557810A (en) * | 2010-12-09 | 2012-07-11 | 王海炜 | Degradable slow-release fertilizer coating agent |
| CN102153103A (en) * | 2010-12-10 | 2011-08-17 | 明光市天骄科技发展有限公司 | Preparation method and application of modified attapulgite clay |
| CN102531759A (en) * | 2010-12-13 | 2012-07-04 | 王海炜 | Slow-release composite fertilizer |
Non-Patent Citations (1)
| Title |
|---|
| 陈浩等: "改性凹凸棒粘土悬浮稳定性的研究", 《中国矿业》 * |
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| CN105524623A (en) * | 2016-02-01 | 2016-04-27 | 广东省生态环境与土壤研究所（广东省土壤科学博物馆） | Preparation and use methods of slow-release type iron-based biochar soil heavy metal passivator |
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| CN108516889A (en) * | 2018-04-28 | 2018-09-11 | 陈建峰 | A kind of coating agent and preparation method thereof |
| CN110668891A (en) * | 2019-09-25 | 2020-01-10 | 山东宝源生物科技股份有限公司 | Biocontrol type compound additive and application thereof in fertilizer |
| CN111606766A (en) * | 2020-06-02 | 2020-09-01 | 山西省农业科学院园艺研究所 | Compound fertilizer and preparation method thereof |
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Application publication date: 20140319 |