CN1260188C - Corn drought-resistant water preserving type film coated control releasing fertilizer and producing method - Google Patents
Corn drought-resistant water preserving type film coated control releasing fertilizer and producing method Download PDFInfo
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- CN1260188C CN1260188C CN 200410050219 CN200410050219A CN1260188C CN 1260188 C CN1260188 C CN 1260188C CN 200410050219 CN200410050219 CN 200410050219 CN 200410050219 A CN200410050219 A CN 200410050219A CN 1260188 C CN1260188 C CN 1260188C
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Abstract
The present invention relates to drought-resistant water preservation type film coated control releasing fertilizer for corn and a production method thereof. A film layer is synthetized by the components by weight proportion: 5 to 10% of polyvinyl alcohol, 5 to 10% of common cornstarch, 1% of acrylic resin water absorbent, 30 to 40% of zeolite, 0.01 to 0.11% of nitrogenous fertiliser control releasing powder, 0.01% of zinc sulfate powder and 38.9 to 58.9% of water. A water preservation type raw material is used as the main component of the film layer of the fertilizer and cooperates with the desired useful nutritive elements of copper, iron, zinc, nitrogen element synergist and environmental-friendly biodegradable high molecular adhesive for corn growth to coat a special compound fertilizer for corn. The fertilizer provides a novel special fertilizer for corn production, which has the advantages of simple preparation technology and the combination of water preservation and fertilizer feeding. The novel special fertilizer for corn realizes one-step fertilizer application in the growth period of corn, reduces the labor cost of corn production, improves the economic effect and is favorable for large-scale popularization and use in corn production.
Description
Technical field
The present invention relates to the corn special-purpose fertilizer preparation field, water preserving type film coated release and release control fertilizer of particularly a kind of drought-resistant maize and method for making thereof.
Background technology
Corn is a high-yield crop, at world's sown area with ultimate production is only second to paddy rice and wheat occupies the 3rd, corn is not only food crop, is again the crop of economy and feed dual-purpose, be the important source material of hundreds of valuable industrial goods, in national economy, account for epochmaking status.
The corn fertilizing technology comprises base manure, seed manure and topdresses that topdressing is divided into seed manure, ear manuer and granulated fertilizer.Fertilising is the assurance of corn yield and quality.But because corn price is lower, the plantation profit is too little, and fertilizer application frequency is frequent, and peasant household is reluctant to drop into too much labour and removes fertilizing management; Add that the corn planting district mostly is the arid and semi-arid lands,, can't adapt to corn growth because the influence of supplying water makes the special-purpose fertile utilization rate of fertilizer of conventional corn very low.Therefore it is relatively reasonable to develop a kind of price, and the fertilizer nutrient slow-releasing is better, and the control released fertilizer special of the dry land farming environment that meets Maize Production with water retaining function is to adapt to the Maize Production needs.And at present special-purpose fertile many based on the compound granulation, the fertilizer nutrient utilization ratio is low, itself can not fine water conservation, can not well satisfy the needs of corn growth.
Summary of the invention
The objective of the invention is to adopt the water and fertilizer coupling principle, with water-maintaining raw material as fertilizer sources coating layer main component, cooperate corn growth required useful nutritive element copper, zinc and nitrogen synergistic agent and eco-friendly Biodegradable high-molecular binding agent parcel corn composite fertilizer special, for Maize Production provides a kind of preparation technology simple, water conservation is special-purpose fertile for fertile function bonded novel corn, realize the corn growing season single-dose application, reduce the work cost of Maize Production, increase economic efficiency, help large-scale promotion use in Maize Production.
The water preserving type film coated release and release control fertilizer of drought-resistant maize provided by the invention comprises grains dedicated fertilizer of corn and coating layer, it is characterized in that coating layer feeds intake composition and ratio of weight and number for example down:
Polyvinyl alcohol (PVA) 5-10
Conventional corn starch 5-10
Acrylic resin water-retaining agent 1
Zeolite (granularity 300-400 order) 30-40
Dyhard RU 100 powder, sulfuric acid copper powder, one or more 0.01-0.11 of borax
Zinc sulfate powder 0.01
Water 38.9-58.9
Coating layer thickness weight is the 5%-7% of coated granular fertilizer gross weight.
Above-mentioned PVAC polyvinylalcohol molecular weight is 1300-1800.
Above-mentioned W-Gum is that grade is a 30-40 purpose conventional corn starch.
Above-mentioned membranous layer ingredient contains the suction multiple 100-200 of acrylic resin water-holding agent, granularity 300-400 order.
The water preserving type film coated release and release control fertilizer preparation method of drought-resistant maize provided by the invention is characterized in that:
It is synthetic to carry out coating layer earlier, each component (except the water-holding agent) is fed intake in above-mentioned parts by weight ratio, in homogenizer, stirred 30-40 minute, temperature of reaction 80-90 ℃, stirrer rotating speed 100r/min, when carrying out the coating operation, the acrylic resin water-retaining agent is added stirrer stir back coating under 90-100 ℃ of hot blast effect rapidly;
Carry out coating then, on granulating disc commonly used, coating liquid is atomized the back to corn particle dedicated fertilizer coating commonly used by air pump; disc rotation speed 10r/min, the every 100kg of fertilizer, hydrojet speed 1L/min; coating layer coating thickness weight is 5% of coated granular fertilizer gross weight, cooling packing.
The present invention compares with prior art, has following advantage:
1, utilize the water and fertilizer coupling principle, as the coating layer composition, the inhibitor that cooperates fertilizer nutrient to discharge improves nutrient availability and moisture content utilising efficiency in the fertilizer, is suitable for dry-land crop production with water-holding agent;
2, technology is simple, and equipment is reactor, agitator, pneumatic pump commonly used, spray gun and granulating disc, and the production unit cost is low, can directly drop into existing fertilizer plant production;
3, the coating raw material is easy to get, and is biodegradable, and environmentally friendly, and the degraded composition improves Soil structure effectively;
Embodiment
Embodiment 1:
5kg polyvinyl alcohol, 5kg W-Gum, 40kg zeolite, 0.1kg Dyhard RU 100 powder, 0.01kg sulfuric acid copper powder, 0.01kg sulfuric acid zinc powder are mixed with 48.9kg water, and wherein Dyhard RU 100 powder and sulfuric acid copper powder can use wherein a kind ofly, also can two kinds use simultaneously.In homogenizer, stirred 30 minutes 90 ℃ of temperature of reaction, stirrer rotating speed 100r/min.Making coating liquid changes in the liquid storage filling that links to each other with pneumatic pump.The grains dedicated compound manure of corn is utilized the bolting classification, and the particle of same granularity is produced for one time; 100kg granulated fertilizer after the screening is packed into and had the granulating disc of heating function, scrape fertilizer surface 10 minutes of preheating under 60 ℃ of conditions, rotation; During coating, 1kg water-holding agent acrylic resin is added stirring fast in the coating liquid, with the every 100kg of fertilizer, hydrojet speed 1L/min is coating under 90 ℃ of hot blast effects, and coating layer coating thickness weight is 5% of coated granular fertilizer gross weight, cooling packing.
Embodiment 2:
10kg polyvinyl alcohol, 10kg W-Gum, 30kg zeolite, 0.1kg Dyhard RU 100 powder, 0.01kg sulfuric acid copper powder, 0.01kg sulfuric acid zinc powder are mixed with 48.9kg water, in homogenizer, stirred 30 minutes, 90 ℃ of temperature of reaction, stirrer rotating speed: 100r/min.Make coating liquid and change in the liquid storage filling that links to each other with pneumatic pump, the grains dedicated compound manure of corn is utilized the bolting classification, the particle of same granularity is produced for one time; 100kg granulated fertilizer after the screening is packed into and had the granulating disc of heating function, scrape fertilizer surface 10 minutes of preheating under 60 ℃ of conditions, rotation; During coating, the 1kg water-holding agent is added stirring fast in the coating liquid, with the every 100kg of fertilizer, hydrojet speed 1L/min is coating under 90 ℃ of hot blast effects, and coating layer coating thickness weight is 5% of coated granular fertilizer gross weight, cooling packing.
Embodiment 3:
10kg polyvinyl alcohol, 10kg W-Gum, 40kg zeolite, 0.1kg Dyhard RU 100 powder, 0.01kg sulfuric acid copper powder, 0.01kg sulfuric acid zinc powder are mixed with 38.9kg water, in homogenizer, stirred 30 minutes, 90 ℃ of temperature of reaction, stirrer rotating speed: 100r/min.Making coating liquid changes in the liquid storage filling that links to each other with pneumatic pump.The grains dedicated compound manure of corn is utilized the bolting classification, and the particle of same granularity is produced for one time; 100kg granulated fertilizer after the screening is packed into and had the granulating disc of heating function, scrape fertilizer surface 10 minutes of preheating under 60 ℃ of conditions, rotation; During coating, the 1kg water-holding agent is added stirring fast in the coating liquid, with the every 100kg of fertilizer, hydrojet speed 1L/min is coating under 100 ℃ of hot blast effects, and coating layer coating thickness weight is 5% of coated granular fertilizer gross weight, cooling packing.
Embodiment 4:
5kg polyvinyl alcohol, 10kg W-Gum, 30kg zeolite, 0.1kg Dyhard RU 100 powder, 0.01kg sulfuric acid copper powder, 0.01kg sulfuric acid zinc powder, 0.01kg borax are mixed with 53.9kg water, in homogenizer, stirred 30 minutes, 90 ℃ of temperature of reaction, stirrer rotating speed: 100r/min.Making coating liquid changes in the liquid storage filling that links to each other with pneumatic pump.The grains dedicated compound manure of corn is utilized the bolting classification, and the particle of same granularity is produced for one time; 100kg granulated fertilizer after the screening is packed into and had the granulating disc of heating function, scrape fertilizer surface 10 minutes of preheating under 60 ℃ of conditions, rotation; During coating, the 1kg water-holding agent is added stirring fast in the coating liquid, with the every 100kg of fertilizer, hydrojet speed 1L/min is coating under 100 ℃ of hot blast effects, and coating layer coating thickness weight is 5% of coated granular fertilizer gross weight, cooling packing.
Embodiment 5:
7kg polyvinyl alcohol, 9kg W-Gum, 35kg zeolite, 0.1kg Dyhard RU 100 powder, 0.01kg sulfuric acid zinc powder are mixed with 53.9kg water, in homogenizer, stirred 30 minutes 90 ℃ of temperature of reaction, stirrer rotating speed: 100r/min.Making coating liquid changes in the liquid storage filling that links to each other with pneumatic pump.The grains dedicated compound manure of corn is utilized the bolting classification, and the particle of same granularity is produced for one time; 100kg granulated fertilizer after the screening is packed into and had the granulating disc of heating function, scrape fertilizer surface 10 minutes of preheating under 60 ℃ of conditions, rotation; During coating, the 1kg water-holding agent is added stirring fast in the coating liquid, with the every 100kg of fertilizer, hydrojet speed 1L/min is coating under 100 ℃ of hot blast effects, and coating layer coating thickness weight is 5% of coated granular fertilizer gross weight, cooling packing.
Result of use: maize planting on Shenyang, Liaoning Dongling brown earth and Changtu, Tieling meadow soil, two kinds of soil are medium fertility.Verify the effect of coated release-controlled corn fertilizer with potted plant and field test method, plant a season after soil still have fertilizer residual.Waiting under nutrient and the equal proportion condition, adopting coating and non-coating to handle.The npk nutrient ratio is 18: 8: 12, or 22: 10: 12 rates of fertilizer application to locate fertilizer test optimum fertilizing amount nitrogen for a long time by brown earth be 8 kilograms/mu, be 7.2 kilograms of N/ mus after subtracting 10%.Adopt single-dose application to exempt to topdress, compare with the conventional composite fertilizer of equal proportion and equivalent, no matter the use coated fertilizer is 5% or 8% membrane wrapping thickness, all do not occur taking off fertilizer on two kinds of soil of growing period or late growing stage is crossed prosperous phenomenon, plant strain growth is good.And tangible nutrient supply deficiency is arranged before taking out hero to impinging upon, and plant is shorter, and the leaf look yellow.It is serious to take off fertilizer to the ripening stage, and middle and lower part blade yellow reddens, and typical nitrogen stress symptom occurs, and output obviously reduces.The brown earth corn is used the processing of 5% coating and 8% coated compound fertilizer and is compared respectively according to volume increase 8.01%～12.58% and 14.39%～20.21%.The effect of increasing production that meadow soil is used 5% coat fertilizer is more obvious, and amount of increase in production reaches 18.74%～44.17%.Reduce fertilizer amount 30% than conventional fertilizer application, the brown earth corn yield reaches 674.98～714.84 kilograms/mu, and the meadow soil corn reaches 621 kilograms/mu, reaches and surpasses conventional fertilizer application output.
Claims (6)
1. the water preserving type film coated release and release control fertilizer of drought-resistant maize comprises grains dedicated fertilizer of corn and coating layer, it is characterized in that coating layer feeds intake composition and ratio of weight and number for example down:
Polyvinyl alcohol 5-10
Conventional corn starch 5-10
Acrylic resin water-retaining agent 1
Zeolite 30-40
Dyhard RU 100 powder, sulfuric acid copper powder, one or more 0.01-0.11 of borax
Sulfuric acid zinc powder 0.01
Water 38.9-58.9
Coating layer thickness weight is the 5%-7% of coated granular fertilizer gross weight.
2, the water preserving type film coated release and release control fertilizer of drought-resistant maize according to claim 1 is characterized in that the PVAC polyvinylalcohol molecular weight is 1300-1800.
3, the water preserving type film coated release and release control fertilizer of drought-resistant maize according to claim 1 is characterized in that W-Gum is a grade 30-40 purpose conventional corn starch.
4, the water preserving type film coated release and release control fertilizer of drought-resistant maize according to claim 1 is characterized in that membranous layer ingredient contains the acrylic resin water-retaining agent, suction multiple 300-400.
5, the water preserving type film coated release and release control fertilizer of drought-resistant maize according to claim 1 is characterized in that zeolite particle size is the 300-400 order.
6, the water preserving type film coated release and release control fertilizer method for making of a kind of drought-resistant maize, it is characterized in that: carry out coating layer earlier and synthesize, with each component by weight ratio feed intake polyvinyl alcohol 5-10, conventional corn starch 5-10, zeolite 30-40, Dyhard RU 100 powder, sulfuric acid copper powder, one or more 0.01-0.11 of borax, sulfuric acid zinc powder 0.01, water 38.9-58.9;
In homogenizer, stirred 30-40 minute, temperature of reaction 80-90 ℃, stirrer rotating speed 100r/min when carrying out the coating operation, is that 1 acrylic resin water-retaining agent adds stirrer and stirs back coating under 90-100 ℃ of hot blast effect rapidly with the parts by weight ratio;
On tablets press, coating liquid is atomized the back to corn particle dedicated fertilizer coating quantitatively commonly used by air pump, disc rotation speed 10r/min, the every 100kg of fertilizer, hydrojet speed 1L/min, coating layer coating thickness weight is the 5%-7% of coated granular fertilizer gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410050219 CN1260188C (en) | 2004-08-09 | 2004-08-09 | Corn drought-resistant water preserving type film coated control releasing fertilizer and producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410050219 CN1260188C (en) | 2004-08-09 | 2004-08-09 | Corn drought-resistant water preserving type film coated control releasing fertilizer and producing method |
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| CN1587233A CN1587233A (en) | 2005-03-02 |
| CN1260188C true CN1260188C (en) | 2006-06-21 |
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| CN 200410050219 Expired - Fee Related CN1260188C (en) | 2004-08-09 | 2004-08-09 | Corn drought-resistant water preserving type film coated control releasing fertilizer and producing method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100413815C (en) * | 2007-02-08 | 2008-08-27 | 山东省农业科学院土壤肥料研究所 | Environment-friendly type degradable slow release fertilizer envelope agent and preparing method thereof |
| CN101503330B (en) * | 2009-03-06 | 2012-06-06 | 上海师范大学 | Efficient coated control release urea and preparation thereof |
| CN101987959A (en) * | 2009-08-06 | 2011-03-23 | 丹阳市瑞清园林工程有限公司 | Binding and water-retaining agent for vegetation and light matrix for vegetation |
| WO2011080764A1 (en) * | 2009-12-30 | 2011-07-07 | Nagarjuna Fertilizers And Chemicals Limited | Method of coating zinc sulphate monohydrate on npk granules |
| CN103664376A (en) * | 2013-12-09 | 2014-03-26 | 陈汇梁 | Preparation method of coated controlled-release compound fertilizer |
| CN103833471B (en) * | 2014-03-18 | 2015-08-05 | 东北农业大学 | Mid-late ripening corn special environment protection degradable granule fertilizer coating liquid and preparation method thereof |
| CN110563524A (en) * | 2019-10-17 | 2019-12-13 | 安徽省聚科石墨烯科技股份公司 | Polyvinyl alcohol/graphene coated controlled-release fertilizer |
| CN112724443A (en) * | 2020-12-25 | 2021-04-30 | 宁波大榭开发区综研化学有限公司 | Hydrophilic membrane and preparation method thereof |
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