Modified-polyvinyl alcohol-coated long-effect slow-release compound fertilizer

A technology of polyvinyl alcohol coating and compound fertilizer, applied in fertilizer mixture, fertilization device, agricultural gas emission reduction, etc., can solve the mismatch of crop growth requirements, unsatisfactory slow release effect, and difficulty in meeting different needs, etc. problems, to achieve the effect of improving single fixation of nutrients, stable and long-lasting slow-release effect, and preventing premature and ineffective loss of nutrients

Inactive Publication Date: 2014-10-01
合肥江氏农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing slow-release compound fertilizers still have certain shortcomings, mainly in that the nutrient ratio is relatively fixed, and it is difficult to meet the different needs of various soils and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0012] Example

[0013] The compound fertilizer of this embodiment is prepared from the following parts by weight (kg) of raw materials: 1250 mesh diatomaceous earth 15, soybean dregs 10, ammonium nitrate 12, decomposed pig manure 18, fly ash 12, ammonium bicarbonate 28, milk steak Substance 12, pineapple leaf 5, charcoal powder 5, zinc acetate 2, sodium gluconate 5, calcium carbonate 6, ammonium dihydrogen phosphate 25, lavender powder 3, cell culture waste liquid 10, tobacco scraps 12, thiosulfuric acid Sodium 5, Sodium Caseinate 2, Polyvinyl Alcohol 12, Sodium Carboxymethyl Cellulose 8, Nano Zinc Oxide 0.5, Assistant 5; The assistant is made of the following parts by weight of raw materials: Poultry Feather 14, Nano Carbon 8, 40% sulfuric acid solution 40, sodium pyrophosphate 2, activated carbon fine powder 20, sodium hydroxide appropriate amount, copper citrate 1, manganese citrate 2, zinc citrate 1, the preparation method: first wash the poultry feathers with water and high...

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PUM

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Abstract

The invention relates to the field of compound fertilizers, and in particular relates to a modified-polyvinyl alcohol-coated long-effect slow-release compound fertilizer. The fertilizer is made from the following raw materials in parts by weight: 10-15 parts of 1250-2000-mesh kieselguhr, 8-10 parts of soybean residue, 12-14 parts of ammonium nitrate, 15-18 parts of thoroughly decomposed pig manure, 12-14 parts of fly ash, 28-30 parts of ammonium bicarbonate, 12-15 parts of dairy cow excrement, 5-7 parts of pineapple leaf, 3-5 parts of charcoal powder, 2-5 parts of zinc acetate, 3-5 parts of sodium gluconate, 6-8 parts of calcium carbonate, 23-25 parts of ammonium dihydrogen phosphate, 1-3 parts of moleplant seed powder, 8-10 parts of cell culture medium waste liquor, 10-12 parts of tobacco leftovers, 3-5 parts of sodium thiosulfate, 1-3 parts of sodium caseinate, 10-12 parts of polyvinyl alcohol, 6-8 parts of sodium carboxymethylcellulose, 0.5-1 part of nanometer zinc oxide and 4-5 parts of assistant. The compound fertilizer disclosed by the invention has the advantages that the raw material sources are abundant, rich in various organic matters and capable of increasing the soil activity; nutrients are doubly coated by utilizing the kieselguhr and modified polyvinyl alcohol slow-release coating agent in the production process, so that the compound fertilizer has excellent and long-lasting slow-release control ability, more long-lasting and efficient fertilizer effect and obvious production and income increasing effect.

Description

technical field [0001] The invention relates to the field of compound fertilizers, in particular to a modified polyvinyl alcohol-coated long-acting slow-release compound fertilizer. Background technique [0002] In modern agricultural production, compound fertilizer can be seen everywhere. It has the advantages of high nutrient content, less auxiliary components, high fertilizer utilization rate, and convenient storage and application. It plays an important role in promoting high and stable crop yields. Slow-release compound fertilizer is an important category of compound fertilizers, and it is also the focus of research on the development of my country's chemical fertilizer industry. Its slow-release principle is to coat a thin layer of hydrophobic substances on the surface of fertilizer particles, so that the internal nutrients are slowly released to the In the soil, nutrients are continuously supplied to crops, which effectively improves the utilization rate of fertilizers...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCY02A40/22Y02P60/21
Inventor 江超胡宁江龙闫锦闫铸
Owner 合肥江氏农业科技有限公司
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