CN1256283C - Rice low water permeability coated control release composite fertilizer and its producing method - Google Patents
Rice low water permeability coated control release composite fertilizer and its producing method Download PDFInfo
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- CN1256283C CN1256283C CNB2004100502184A CN200410050218A CN1256283C CN 1256283 C CN1256283 C CN 1256283C CN B2004100502184 A CNB2004100502184 A CN B2004100502184A CN 200410050218 A CN200410050218 A CN 200410050218A CN 1256283 C CN1256283 C CN 1256283C
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Abstract
The present invention relates to low water permeability coated control release composite fertilizer for rice and a preparing method thereof. The fertilizer is characterized in that the low water permeability coated control release composite fertilizer for rice is composed of batch charging components by the following weight ratio of 20 to 30 portions of silicon powder with 300 to 400 meshes of granularity, 5 to 10 portions of polyvinyl alcohol, 5 to 10 portions of ordinary corn starch, 0.1 to 0.2 portion of inhibitor, 0.01 portion of copper sulfate powder, 0.01 portion of zinc sulfate powder and 49.9 to 69.9 portions of water; a low water permeability coating layer is prepared by the combination of Si, Cu, Fe and Zn which are beneficial nutrient elements desired by the growth of the rice, a nitrogen element synergistic agent and a biodegradable high molecular adhesive without environment pollution; special fertilizer for the rice is wrapped by the coating layer. The stuffing parts of conventional rice compound fertilizer and complex special fertilizer are used as the components of the coating layer of the fertilizer to realize the allotopia composition of the components of the fertilizer. On the basis of satisfying the nutrient requirements of the rice, the stuffing components of the conventional fertilizer are used as important components of the membranous layer of the fertilizer and are combined with the high molecular adhesive to form the low water permeability coated fertilizer. The nutrient release of nitrogen, phosphorus and potassium can be controlled under the production condition of water environment, production cost can be reduced and economic benefit can be increased.
Description
Technical field
The present invention relates to a kind of paddy rice-dedicated fertilizer material preparation field, low coated release-controlled compound manure of permeable type of particularly a kind of paddy rice and method for making thereof.
Background technology
Paddy rice has important strategic position in Grain Production in China, Chinese population over half is staple food with rice.According to statistics, the rice in China area accounts for 29.1% of the food crop total area.Per unit area yield accounts for 44% of national total grain output than food crop mean height 68% gross output, and the paddy rice rational application of fertilizer is the important measures that guarantee the paddy rice high and stable yields.
Fertilization of rice is divided into tillering fertilizer, ear manuer, granulated fertilizer, the output and the vital relation of having topdressed.Because aquatic environment that paddy rice is special and the fertilization mode that repeatedly topdresses make labour intensity big, fertilizer practice requires high, and increases the input and the production cost of peasant's productivity.Paddy rice-dedicated fertilizer commonly used at present can't can not reach the growth needs that crop is satisfied in the growth period duration of rice single-dose application according to the release and the supply of nutrient in the nutrient demand conditioned fertilizer product in paddy rice different bearing stage.Relevant patent situation and dedicated fertilizer are wide in variety based on the compound granulation both at home and abroad, and the fertilizer nutrient utilization ratio is low, can not well satisfy paddy growth, and the fertilizer of common coating class rete under the water surrounding condition breaks easily, can not play the effect that prolongs fertilizer efficiency.Therefore the long-acting controlled release fertilizer fertilizer that present urgent need provides a kind of single-dose application both to satisfy paddy rice whole growing needs.
Summary of the invention
It is simple to the purpose of this invention is to provide a kind of production technique, production cost is low, useful nutritive element silicon, copper, iron, zinc and the nitrogen synergistic agent that paddy growth is required combines the low permeable type integument of preparation, the coated release-controlled dedicated fertilizer production method that paddy rice-dedicated fertilizer is wrapped up again with eco-friendly Biodegradable high-molecular binding agent composition.The component of the coating layer of the filler part as fertilizer sources of conventional rice is compound and compound dedicated fertilizer realizes that the dystopy of fertilizer components is formed.Promptly satisfying on the rice nutrient Demand Base, to often there be the important component part of fertilizer filler composition as fertilizer sources rete to form low water permeable membrane Wrapped fertilizer in conjunction with high polymer binder, be implemented under the water surrounding working condition is that the may command npk nutrient discharges, can reduce production costs again, increase economic efficiency, help large-scale promotion use in Rice Production.
The coated release-controlled compound manure of the permeable type of paddy rice provided by the invention is characterized in that feed intake composition and part by weight of coating layer is as follows:
Silica flour 20-30
Polyvinyl alcohol (PVA) 5-10
Conventional corn starch 5-10
Inhibitor 0.1-0.2
Copper sulfate powder 0.01
Zinc sulfate powder 0.01
Water 49.9-69.9
Above-mentioned inhibitor is Dyhard RU 100, quinhydrones, can use separately, also can use simultaneously.
Above-mentioned silica flour is a granularity 300-400 order.
Above-mentioned PVAC polyvinylalcohol molecular weight model is 1300-1800.
Above-mentioned W-Gum is that grade is a 30-40 purpose conventional corn starch.
The preparation method of the coated release-controlled compound manure of the permeable type of paddy rice provided by the invention, it is characterized in that: carry out coating layer earlier and synthesize, each component is fed intake by following weight proportion: silica flour 20-30, polyvinyl alcohol 5-10, conventional corn starch 5-10, inhibitor 0.1-0.2, copper sulfate powder 0.01, zinc sulfate powder 0.01, water 49.9-69.9, in homogenizer, stirred 30-40 minute temperature of reaction 80-90 ℃.Stirrer rotating speed 100r/min; Spray paddy rice-dedicated fertilizer according to a conventional method.
The present invention compares with prior art, has following advantage:
1, technology is simple, and non-chemical industry synthesis technique only uses compound technology to finish, and equipment is reactor, agitator, pneumatic pump commonly used, spray gun, and the production unit cost is low, can directly drop into existing fertilizer plant production;
2, the coating raw material is easy to get, and is biodegradable, and environmentally friendly, and the degraded composition improves Soil structure effectively;
3, hydrophobic material silica flour and water-absorbing material W-Gum, polyvinyl alcohol easily form low permeable rete when high-speed stirring, easily use under the water surrounding condition;
4, will use components such as filler that paddy rice-dedicated fertilizer adopts and trace element always as membranous layer ingredient, both satisfy the rice nutrient needs, the physical barriers that its as fertilizer sources nutrient can be discharged prolongs time for fertilizer again, improves utilization rate of fertilizer and also reduces raw materials cost.
Embodiment:
Embodiment 1:
20kg silica flour, 5kg polyvinyl alcohol, 5kg W-Gum, 0.1kg Dyhard RU 100 powder, 0.01kg copper sulfate powder, 0.01kg zinc sulfate powder are mixed with 69.9kg 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 paddy rice 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; Coating liquid sprayed the fertilizer surface by pneumatic pump every 3 minutes, spray time 20 minutes, and the weight of coating thickness is 5% of gross weight, cooling packing.
Embodiment 2: 20kg silica flour, 10kg polyvinyl alcohol, 10kg W-Gum, 0.1kg Dyhard RU 100 powder, 0.1kg quinhydrones, 0.01kg copper sulfate powder, 0.01kg zinc sulfate powder are mixed with 59.9kg water, in homogenizer, stirred 40 minutes, 80 ℃ 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 paddy rice 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; Coating liquid sprayed the fertilizer surface by pneumatic pump every 3 minutes, spray time 20 minutes, and the weight of coating thickness is 5% of gross weight, cooling packing.
Embodiment 3: 30kg silica flour, 10kg polyvinyl alcohol, 10kg W-Gum, 0.1kg Dyhard RU 100 powder, 0.01kg copper sulfate powder, 0.01kg zinc sulfate powder are mixed with 59.9kg water, in homogenizer, stirred 40 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 paddy rice 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; Coating liquid sprayed the fertilizer surface by pneumatic pump every 3 minutes, spray time 20 minutes, and the weight of coating thickness is 5% of gross weight, cooling packing.
Embodiment 4: 30kg silica flour, 10kg polyvinyl alcohol, 10kg W-Gum, 0.1kg Dyhard RU 100 powder, 0.01kg copper sulfate powder, 0.01kg zinc sulfate powder are mixed with 49.9kg 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 paddy rice 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; Coating liquid sprayed the fertilizer surface by pneumatic pump every 3 minutes, spray time 20 minutes, and the weight of coating thickness is 5% of gross weight, cooling packing.
Claims (5)
1, the low coated release-controlled compound manure of permeable type of a kind of paddy rice is characterized in that feed intake composition and the part by weight of coating layer wherein is as follows:
Silica flour, granularity 300-400 order 20-30
Polyvinyl alcohol (PVA) 5-10
Conventional corn starch 5-10
Inhibitor 0.1-0.2
Copper sulfate powder 0.01
Zinc sulfate powder 0.01
Water 49.9-69.9
2, the low coated release-controlled compound manure of permeable type of paddy rice according to claim 1 is characterized in that the inhibitor in the coating layer wherein is Dyhard RU 100, quinhydrones, can use separately, also can use simultaneously.
3, the low coated release-controlled compound manure of permeable type of paddy rice according to claim 1 is characterized in that the PVAC polyvinylalcohol molecular weight model in the coating layer wherein is 1300-1800.
4, the low coated release-controlled compound manure of permeable type of paddy rice according to claim 1 is characterized in that the W-Gum in the coating layer wherein is that grade is a 30-40 purpose conventional corn starch.
5, the low coated release-controlled compound manure method for making of permeable type of a kind of paddy rice, it is characterized in that: carry out coating layer earlier and synthesize, each component is fed intake by following weight proportion: silica flour 20-30, polyvinyl alcohol 5-10, conventional corn starch 5-10, inhibitor 0.1-0.2, copper sulfate powder 0.01, zinc sulfate powder 0.01, water 49.9-69.9, in homogenizer, stirred 30-40 minute, temperature of reaction 80-90 ℃, stirrer rotating speed 100r/min; Spray paddy rice-dedicated fertilizer according to a conventional method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100502184A CN1256283C (en) | 2004-08-09 | 2004-08-09 | Rice low water permeability coated control release composite fertilizer and its producing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100502184A CN1256283C (en) | 2004-08-09 | 2004-08-09 | Rice low water permeability coated control release composite fertilizer and its producing method |
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| Publication Number | Publication Date |
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| CN1587072A CN1587072A (en) | 2005-03-02 |
| CN1256283C true CN1256283C (en) | 2006-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100502184A Expired - Fee Related CN1256283C (en) | 2004-08-09 | 2004-08-09 | Rice low water permeability coated control release composite fertilizer and its producing method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465136C (en) * | 2006-12-31 | 2009-03-04 | 沈阳农业大学 | Film coated control release composite fertilizer special for regetables and its making method |
| CN102503694B (en) * | 2011-11-08 | 2014-03-19 | 湖南省土壤肥料研究所 | Compound fertilizer for double-season early rice in south-central China and application of compound fertilizer |
| CN103664376A (en) * | 2013-12-09 | 2014-03-26 | 陈汇梁 | Preparation method of coated controlled-release compound fertilizer |
| CN111217634A (en) * | 2018-11-27 | 2020-06-02 | 国家能源投资集团有限责任公司 | Silicon-calcium mineral fertilizer and preparation method and application thereof |
| CN111165242B (en) * | 2020-01-20 | 2022-04-29 | 中国农业科学院农业环境与可持续发展研究所 | Fertilizer type biodegradable mulching film and preparation method thereof |
| CN111470912A (en) * | 2020-06-07 | 2020-07-31 | 沈阳农业大学 | Special formula fertilizer for topdressing-free rice and preparation method and use method thereof |
| CN113563134A (en) * | 2021-09-09 | 2021-10-29 | 苏农（广德）生物科技有限公司 | Preparation method of compound fertilizer convenient for rice growth regulation |
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