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Method for producing organic composite fertilizer by utilizing iron phosphate to efficiently catalyze straws

A technology of iron phosphate and compound fertilizer, which is applied in the direction of organic fertilizer, application, fertilization device, etc., can solve the problems of little use and ineffective utilization of straw, achieve less side components, improve the quality of agricultural products, and have good physical properties Effect

Inactive Publication Date: 2017-02-22
SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of straw has not been effectively used and has become a "waste" that is "not very useful" but must be disposed of

Method used

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  • Method for producing organic composite fertilizer by utilizing iron phosphate to efficiently catalyze straws
  • Method for producing organic composite fertilizer by utilizing iron phosphate to efficiently catalyze straws

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Break the freshly harvested sunflower straw to 5mm, weigh 30g and mix it with distilled water 1:1 (w / w), then add 0.9g (90%) iron phosphate to the mixture, send the mixture into an anaerobic fermentation tank, and control the temperature The temperature is 50°C, and the production of compound fertilizer is carried out, and the reaction time is 3 days. The obtained compound fertilizer is naturally dried until the moisture content is 25% to 30%, and then simply packed. Fertilizer efficiency was tested by pot experiments.

Embodiment 2

[0023] Break the freshly harvested barley straw to 20mm, weigh 30g and mix it with distilled water 1:1.5 (w / w), then add 1.5g (92%) of iron phosphate to the mixture, send the mixture into an anaerobic fermentation tank, and control the temperature The temperature is 45°C, and the production of compound fertilizer is carried out, and the reaction time is 4 days. The obtained compound fertilizer is naturally dried until the moisture content is 25% to 30%, and then simply packed. Fertilizer efficiency was tested by pot experiments.

Embodiment 3

[0025] Crush the freshly harvested wheat straw to 30mm, weigh 30g and mix it with distilled water 1:2 (w / w), then add 2.1g (94%) of iron phosphate to the mixture, send the mixture into an anaerobic fermentation tank, and control the temperature The temperature is 40°C, and the production of compound fertilizer is carried out, and the reaction time is 5 days. The obtained compound fertilizer is naturally dried until the moisture content is 25% to 30%, and then simply packed. Fertilizer efficiency was tested by pot experiments.

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Abstract

The invention belongs to the technical fields of agricultural solid waste treatment and recycling, and in particular relates to a method for producing an organic composite fertilizer by utilizing iron phosphate to efficiently catalyze straws. According to the method, the long-acting organic composite fertilizer is finally obtained by mixing iron phosphate serving as a catalyst, straws and water according to a certain ratio and performing anaerobic fermentation on the mixture. By the method provided by the invention, resource utilization of the straws is realized; meanwhile, the obtained long-acting organic composite fertilizer has high quality and an important actual application value.

Description

technical field [0001] The invention relates to the technical field of agricultural solid waste treatment and resource utilization, in particular to a method for efficiently catalyzing straw production of organic compound fertilizers by using iron phosphate. Background technique [0002] Crop straw is the largest renewable resource on earth. According to relevant statistics, my country produces 700 million tons of straw every year. The waste or open burning part accounts for about 1 / 3 of the total. A large amount of straw has not been effectively utilized and has become a "waste" that is "not very useful" but must be disposed of. In recent years, crop straw has become a new source of rural non-point source pollution. Every year during the summer harvest and autumn and winter, a large number of straws such as sunflowers, barley, wheat, and straw are always burned in the field, producing a large amount of thick smoke. Not only has it become the bottleneck of rural environm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00
CPCC05B17/00C05F11/00
Inventor 王利军张艺
Owner SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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