Coated slow-release compound fertilizer containing oxidized graphene

A compound fertilizer and graphene technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of mismatched crop growth requirements, unsatisfactory slow-release effects, and difficulty in meeting different needs, etc., to improve single nutrient The effects of fixing, improving crop yield and quality, and reducing production costs

Inactive Publication Date: 2014-10-29
HEFEI CHANGRUN AGRI TECH
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  • Summary
  • Abstract
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  • Application Information

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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 a...

Method used

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Examples

Experimental program
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Embodiment

[0013] The compound fertilizer of the present embodiment is made from the following raw materials in parts by weight (kg): 2000 mesh diatomite 15, gibberellin 0.1, potassium dihydrogen phosphate 24, silkworm excrement 12, sawdust 8, phosphorus pentoxide 18, poly Sodium aspartate 8, calcium magnesium phosphate fertilizer 12, peat soil 10, ferrous sulfate 4, potassium fulvic acid 13, decomposed cow dung 18, dried persimmon leaves 4, sodium molybdate 1, wheat straw powder 12, graphene oxide 2. Fructose oligosaccharide 4, water-based polyurethane emulsion 25, epoxy silane crosslinking agent 2, auxiliary agent 5; auxiliary agent is made of the following raw materials in parts by weight: poultry feather 15, nano carbon 2, 30% sulfuric acid solution 40, Palm oil 10, Tween 60 4, diatomaceous earth 32, magnesium carbonate appropriate amount, copper citrate 1, manganese citrate 1, zinc citrate 1, the preparation method is as follows: first, poultry feathers are washed with water, sterili...

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Abstract

The invention relates to the field of compound fertilizers, in particular to a coated slow-release compound fertilizer containing oxidized graphene. The fertilizer is prepared from the following raw materials in parts by weight: 10-15 parts of 1,250-2,000-mesh diatomite, 0.1-0.2 part of gibberellins, 20-24 parts of potassium dihydrogen phosphate, 10-12 parts of silkworm excrement, 8-10 parts of sawdust, 15-18 parts of diphosphorus pentoxide, 6-8 parts of sodium polyaspartate, 10-12 parts of a calcium magnesium phosphate fertilizer, 8-12 parts of peat soil, 2-4 parts of ferrous sulfate, 9-13 parts of potassium fulvate, 15-18 parts of decomposed cattle manure, 2-4 parts of withered persimmon leaves, 1-2 parts of sodium molybdate, 10-12 parts of wheat straw powder, 1-2 parts of oxidized graphene, 3-4 parts of fructooligosaccharides, 20-25 parts of waterborne polyurethane emulsion, 1-2 parts of an epoxy silane crosslinker and 4-5 parts of an assistant. According to the compound fertilizer, various raw materials are used; multiple nutritional ingredients are provided; the nutritional ingredients are coated with diatomite and a slow-release coating agent, so that the nutrient loss is hardly caused, the fertilizer efficiency lasts for a long time, the crop yield and the crop quality can be remarkably improved, and the planting benefit is relatively high.

Description

technical field [0001] The invention relates to the field of compound fertilizers, in particular to a slow-release compound fertilizer containing graphene oxide coating. 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. However, ...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 陈灿
Owner HEFEI CHANGRUN AGRI TECH
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