Like-humic acid substance extracted from crop straw and preparation method of compound fertilizer thereof

A technology of crop straw and humic acid, which is applied in the agricultural field, can solve the problems of waste of resources and pollute the environment, and achieve the effects of reducing pollution, increasing nutrients and enhancing stress resistance.

Inactive Publication Date: 2013-09-04
SUZHOU POLYTECHNIC INST OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In agricultural activities, farmers burn rice straw and wheat straw after harvesting grain such as rice and wheat, which not only pollutes the environment, but also causes a lot of waste of resources, because there are a large amount of humic acid in rice straw and wheat straw, which is invisible waste of resources in

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take five samples of rice straw, each of which is 10g, grind each sample into rice straw powder in a pulverizer, add 60ml of different reaction solutions and stir evenly to obtain a degradation solution, the reaction solutions are respectively 20 % acetic acid, 5% oxalic acid, 10% hydrochloric acid, 20% nitric acid, and 20% ammonia water; put the degradation solution in a water bath at 60°C for 20 minutes, then take it out and dry it at 70°C. The sample is smashed or pulverized into a powder, and the content of humic acid and fulvic acid is determined by the volumetric method, and the content of cellulose and lignin is determined by the neutral detergent fiber method. The powder can be used to extract humic acid and fulvic acid. Dissolved in Na2CO3 solvent or NaOH solvent for extraction.

[0021] Dissolve the extracted humic acid and fulvic acid in 100ml of clear water at a mass ratio of 0.12:0.1, add urea, ammonium dihydrogen phosphate, potassium chloride, zinc sulfate...

Embodiment 2

[0023] Take five samples of rice straw, each of which is 15g, crush each sample into rice straw powder in a pulverizer, add 90ml of different reaction solutions and stir evenly to obtain a degradation solution, the reaction solutions are respectively 30 % acetic acid, 10% oxalic acid, 20% hydrochloric acid, 25% nitric acid, and 25% ammonia water; put the degradation solution in a water bath at 70°C for 30 minutes, then take it out and dry it at 80°C. The sample is smashed or pulverized into a powder, and the content of humic acid and fulvic acid is determined by the volumetric method, and the content of cellulose and lignin is determined by the neutral detergent fiber method. The powder can be used to extract humic acid and fulvic acid. Dissolved in Na2CO3 solvent or NaOH solvent for extraction.

[0024] Dissolve the extracted humic acid and fulvic acid in 100ml of clear water at a mass ratio of 0.12:0.1, add urea, ammonium dihydrogen phosphate, potassium chloride, zinc sulfat...

Embodiment 3

[0026] Take five samples of rice straw, each of which is 30g, grind each sample into rice straw powder in a pulverizer, add 180ml of different reaction solutions and stir evenly to obtain a degradation solution, and the reaction solutions have a concentration of 40 % acetic acid, 15% oxalic acid, 30% hydrochloric acid, 30% nitric acid, and 30% ammonia water; put the degradation solution in a water bath at 80°C for 40 minutes and then take it out and dry it at 90°C. The sample is smashed or pulverized into a powder, and the content of humic acid and fulvic acid is determined by the volumetric method, and the content of cellulose and lignin is determined by the neutral detergent fiber method. The powder can be used to extract humic acid and fulvic acid. Dissolved in Na2CO3 solvent or NaOH solvent for extraction.

[0027] Dissolve the extracted humic acid and fulvic acid in 100ml of clear water at a mass ratio of 0.12:0.1, add urea, ammonium dihydrogen phosphate, potassium chlori...

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Abstract

The invention relates to Like-humic acid substance extracted from crop straw and a preparation method of a compound fertilizer thereof. The resource utilization ratio is optimized by extracting humic acid and fulvic acid in rice straw; the pollution to the environment by rice straw is reduced indirectly; meanwhile, the crop production environment can be improved by utilizing the compound fertilizer prepared from the extracted humic acid-like substance; more nutrition is provided for the growth of crops; and the stress resistance of crops is intensified.

Description

technical field [0001] The invention belongs to the field of agriculture, and in particular relates to a kind of humic acid extracted from crop stalks and a method for preparing compound fertilizer thereof. Background technique [0002] In agricultural activities, farmers burn rice straw and wheat straw after harvesting grain such as rice and wheat. This not only pollutes the environment, but also causes a lot of waste of resources, because there is a large amount of humic acid in rice straw and wheat straw, which is invisible cause waste of resources. Humic acid can be divided into two types: primary humic acid and regenerated humic acid. Primary humic acid is extracted from coal. Regenerated humic acid mainly includes biological fermentation humic acid, chemically synthesized humic acid and oxidative regeneration humic acid. Coal resources are non-renewable resources. With continuous development, coal resources are becoming more and more scarce. Therefore, it is urgen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08H99/00C07G99/00C05G1/00
Inventor 杨益花蔡健
Owner SUZHOU POLYTECHNIC INST OF AGRI
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