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Chitosan-coated controlled release fertilizer for saline-alkaline soil

A chitosan-coated, controlled-release fertilizer technology, applied in the agricultural field, can solve the problems of low utilization rate, unscientific application, large application amount, etc., to improve water permeability, reduce soil bulk density and compactness, and increase water permeability sexual effect

Inactive Publication Date: 2017-02-01
滁州朝昱农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the application of desalinated saline-alkali soil fertilizer is an important method of saline-alkali land improvement, but the current application of fertilizers is relatively large, unscientific, and low utilization rate, which also causes a great burden to the environment, so it is used for embedding technology to manufacture controlled release Fertilizer is of great significance for improving fertilizer utilization and reducing pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A chitosan-coated controlled-release fertilizer for saline-alkali land is composed of chitosan, fly ash, straw, animal manure, furfural residue, citric acid residue, distiller's grains, desulfurized gypsum, magnesium sulfate, zinc sulfate, and ammonium molybdate. The fertilizer contains 25% chitosan, 5% fly ash, 30% straw, 15% animal manure, 5% furfural residue, 5% citric acid residue, 5% distiller's grains, 6% desulfurized gypsum, 1% microorganism, 1 % magnesium sulfate, 1% zinc sulfate, 1% ammonium molybdate.

[0029] A kind of preparation method of chitosan-coated controlled-release fertilizer for saline-alkali land is:

[0030] (1) Fermentation: Mix straw, animal manure, furfural residue, citric acid residue, distiller's grains, desulfurized gypsum and microorganisms, and ferment at a temperature of 28-32°C for 10-12 days to generate a rotten fermentation liquid mixture. Among them, The microorganisms are one or more of nitrogen-fixing bacteria, phosphorus-solubili...

Embodiment 2

[0038] A chitosan-coated controlled-release fertilizer for saline-alkali land is composed of chitosan, fly ash, straw, animal manure, furfural residue, citric acid residue, distiller's grains, desulfurized gypsum, EDTA zinc, EDTA manganese, and EDTA ferrous, The fertilizer contains 25% chitosan, 5% fly ash, 30% straw, 15% animal manure, 5% furfural residue, 5% citric acid residue, 5% distiller's grains, 6% desulfurized gypsum, 1% microorganism, 1 %EDTA zinc, 1% EDTA manganese, 1% EDTA ferrous.

[0039] A kind of preparation method of chitosan-coated controlled-release fertilizer for saline-alkali land is:

[0040] (1) Fermentation: Mix straw, animal manure, furfural residue, citric acid residue, distiller's grains, desulfurized gypsum and microorganisms, and ferment at a temperature of 28-32°C for 10-12 days to generate a rotten fermentation liquid mixture. Among them, The microorganisms are one or more of nitrogen-fixing bacteria, phosphorus-solubilizing bacteria, potassium-...

Embodiment 3

[0048] A chitosan-coated controlled-release fertilizer for saline-alkali land, which is composed of chitosan, fly ash, straw, animal manure, furfural residue, citric acid residue, distiller's grains, desulfurized gypsum, arginine salt, leucine salt, valeric acid Amino acid salt composition, the fertilizer contains 25% chitosan, 5% fly ash, 30% straw, 15% animal manure, 5% furfural residue, 5% citric acid residue, 5% distiller's grains, 6% desulfurized gypsum, 1% microorganism, 1% arginine salt, 1% leucine salt, 1% valine salt.

[0049] A kind of preparation method of chitosan-coated controlled-release fertilizer for saline-alkali land is:

[0050] (1) Fermentation: Mix straw, animal manure, furfural residue, citric acid residue, distiller's grains, desulfurized gypsum and microorganisms, and ferment at a temperature of 28-32°C for 10-12 days to generate a rotten fermentation liquid mixture. Among them, The microorganisms are one or more of nitrogen-fixing bacteria, phosphorus...

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Abstract

The invention discloses a chitosan-coated controlled release fertilizer for saline-alkaline soil and relates to the field of agriculture. The chitosan-coated controlled release fertilizer for saline-alkaline soil is made from chitosan, flyash, stalks, animal waste, furfural residue, citric acid residue, distillers' grains, desulfurization gypsum and the like, via the steps of fermenting, mixing, crushing, granulating, dissolving, spraying, perforating and the like; the wastes such as stalks, animal waste and furfural residue are fermented and then coated with chitosan such that the fertilizer may be released slow, fertility period is extended, fertilizer utilization rate is increased, saline-alkaline soil is better improved, and salt damage is relieved.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a chitosan-coated controlled-release fertilizer for saline-alkali land. Background technique [0002] Saline-alkali soils are lands where the soil contains excess soluble salts. Saline-alkali soil is a general term for saline soil, alkaline soil, and different degrees of salinized and alkalized soil. Among them, saline soil mainly refers to salinized soil with high chloride or sulfate content. The soil is alkaline, but the pH value is not necessarily high. Alkaline soil refers to the soil containing carbonate or heavy phosphate, the pH value is high, the soil is alkaline, the organic matter content of saline-alkali soil is small, the soil fertility is low, the physical and chemical properties are poor, and there are many anions and cations harmful to crops. Promote seedlings. [0003] The saline-alkali land improvement method is mainly aimed at eliminating excess salt in the soil, r...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05C3/00C05G3/80C05G5/37C05D3/02C05D5/00C05D9/02C05F3/00C05F5/006C05F5/008C05F11/00C05F17/00
Inventor 辛松
Owner 滁州朝昱农业科技有限公司
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