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Preparation method of composite slow release fertilizer capable of increasing rice yield

A slow-release fertilizer and yield technology, applied in the field of compound slow-release fertilizer preparation for improving rice yield, can solve problems such as water and soil pollution, unsatisfactory effect of chemical fertilizer application, etc. Effect

Inactive Publication Date: 2018-02-16
安徽耘泰农业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Rice is widely planted in my country, and rice needs to absorb more than 20 nutrients for growth and development. These nutrients mainly come from fertilizers. The effect of applying a large amount of chemical fertilizers is not ideal, and it may also cause water and soil pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method of compound slow-release fertilizer for improving rice yield, including the following steps:

[0021] S1. Mix 2kg of chitin and 50kg of ethanol with a concentration of 40wt%, add 0.2kg of glutaraldehyde, stir at room temperature for 2h, remove the glutaraldehyde and ethanol solution, add 0.12kg of chitosan and homogenize for 5min, homogenize pressure Is 25MPa to obtain the first material;

[0022] S2. After crushing 30kg of puffed soybean meal and 16kg of decomposed chicken manure, add 4kg of biogas residue and stir for 25min at a stirring speed of 400r / min to obtain the second material;

[0023] S3, 60kg ammonium nitrate, 30kg precipitation phosphate fertilizer, 20kg plant ash, 20kg potassium chloride, 0.7kg EDTA chelated calcium, 0.6kg EDTA chelated magnesium, 4kg sodium selenite, 1kg EDTA chelated zinc, 0.8kg hexanitrate Mix urea iron, 8kg medical stone powder, 12kg coal gangue, 2kg borax, add water to a water content of 30wt%, stir evenly, add 50kg of...

Embodiment 2

[0025] A preparation method of compound slow-release fertilizer for improving rice yield, including the following steps:

[0026] S1. Mix 10kg of chitin and 30kg of ethanol aqueous solution with a concentration of 60wt%, add 0.1kg of glutaraldehyde, stir at room temperature for 4h, remove the glutaraldehyde and ethanol solution, add 0.1kg of chitosan and homogenize for 12min, homogenize pressure Is 15MPa to obtain the first material;

[0027] S2. After crushing 50kg of puffed soybean meal and 8kg of decomposed chicken manure, add 8kg of biogas residue and stir for 15min at a stirring speed of 460r / min to obtain the second material;

[0028] S3, 50kg ammonium nitrate, 50kg precipitation phosphate fertilizer, 10kg plant ash, 30kg potassium chloride, 0.3kg EDTA chelated calcium, 1.2kg EDTA chelated magnesium, 2kg sodium selenite, 1.6kg EDTA chelated zinc, 0.4kg trinitrate Mix hexaurea iron, 16kg medical stone powder, 6kg coal gangue, 4kg borax, add water to a water content of 20wt%, st...

Embodiment 3

[0030] A preparation method of compound slow-release fertilizer for improving rice yield, including the following steps:

[0031] S1. Mix 4kg of chitin and 45kg of ethanol with a concentration of 45% by weight, add 0.18kg of glutaraldehyde, stir at room temperature for 2.5h, remove the glutaraldehyde and ethanol solution, add 0.11kg of chitosan and homogenize for 10min, homogenize The pressure is 18MPa, and the first material is obtained;

[0032] S2. After crushing 45kg of puffed soybean meal and 10kg of decomposed chicken manure, add 7kg of biogas residue and stir for 18min at a stirring speed of 440r / min to obtain the second material;

[0033] S3, 54kg ammonium nitrate, 45kg precipitation phosphate fertilizer, 12kg plant ash, 28kg potassium chloride, 0.4kg EDTA chelated calcium, 1kg EDTA chelated magnesium, 2.5kg sodium selenite, 1.4kg EDTA chelated zinc, 0.5kg trinitric acid Mix hexaurea iron, 14kg medical stone powder, 8kg coal gangue, 3.5kg borax, add water to a water content ...

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Abstract

The invention discloses a preparation method of composite slow-release fertilizer capable of increasing rice yield. The method comprises the following steps: uniformly mixing chitin and an ethanol aqueous solution, adding glutaraldehyde for stirring, removing glutaraldehyde and the ethanol solution, and adding chitosan for homogenization treatment to obtain a first material; pulverizing puffed soybean meal and decomposed chicken manure, adding biogas residues for stirring to obtain a second material; mixing ammonium nitrate, precipitated phosphate fertilizer, plant ash, potassium chloride, EDTA chelated calcium, EDTA chelated magnesium, sodium selenite, EDTA chelated zinc, Fe(H2NCONH2)6(NO3)3, medical stone powder, coal gangue and borax, adding water, stirring the mixed solution uniformly, adding the second material and the first material, stirring the mixed material uniformly, and performing drying and granulating to obtain the composite slow release fertilizer capable of increasingrice yield. The obtained fertilizer has comprehensive nutrients and excellent slow release performance, can fully meet the requirement of rice for nutrients and can increase the rice yield and improvethe rice quality, and accordingly, resources are saved, the environment is also protected, and the fertilizer is low in cost and suitable for rice planting.

Description

Technical field [0001] The invention relates to the technical field of fertilizers, in particular to a method for preparing a compound slow-release fertilizer for improving rice yield. Background technique [0002] Rice is an important food crop and economic crop. Statistics show that its output and planting area rank first in the world, and it occupies an important position in people's livelihood and national economy. How to effectively use limited land resources and improve the yield and quality of rice crops is the direction and eternal subject of people's efforts. [0003] Rice is planted in a wide area in my country, and the growth and development of rice needs to absorb more than 20 nutrients. These nutrients are mainly derived from fertilizers. The effect of a large number of chemical fertilizers is not ideal, and it may also cause soil and water pollution. Summary of the invention [0004] Based on the technical problems existing in the background technology, the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/04C05G3/60C05G3/80
CPCC05C1/00C05G3/00C05G3/60C05G3/80C05G5/12C05C5/00C05D1/00C05D1/02C05D3/00C05D5/00C05D9/00C05D9/02C05F3/00C05F5/002C05F9/04
Inventor 梁淑升
Owner 安徽耘泰农业发展有限公司
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