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Humic acid soil conditioner, and composition, preparation method and application method thereof

A technology of soil conditioner and humic acid, which is applied in the direction of soil conditioning materials, fertilizer mixtures, chemical instruments and methods, etc., can solve problems such as complex components, harmful crops, and farmland pollution, so as to improve soil aggregate structure and increase soil porosity Degree, reduce the effect of soil bulk density

Active Publication Date: 2016-08-10
SHIHEZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production cost of existing soil conditioners is too high and the composition is complex, which is not suitable for modern agricultural water and fertilizer facilities such as drip irrigation, which greatly limits the promotion and application of soil conditioners in agricultural production.
Patent CN103320140A discloses a soil conditioner, which improves the soil and has a good effect, but the soil conditioner invented by it has many materials and complex components, which are mixed from various components, and it is not clear It has the function of water retention, increased production and income, and high quality. Its improvement has limitations, and its water solubility is not good. It cannot be applied with water in areas such as drip irrigation.
Patent CN102701885A discloses a soil conditioner. Although the soil conditioner can increase the utilization rate of nitrogen fertilizer and promote the absorption of other elemental fertilizers, its main function is to increase the utilization rate of fertilizer and improve the soil structure. The root system grows and does not have water solubility. Although weathered coal is used as waste, the heavy metals contained in it are harmful to crops and accumulate in the soil, which can cause certain potential pollution to farmland.

Method used

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  • Humic acid soil conditioner, and composition, preparation method and application method thereof
  • Humic acid soil conditioner, and composition, preparation method and application method thereof
  • Humic acid soil conditioner, and composition, preparation method and application method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] Weigh the components (kg) according to the following weights:

[0031] Cotton meal 12.0, KOH solution 2.5, polyacrylamide 1.3, urea 1.34, potassium dihydrogen phosphate 1.00, potassium sulfate 0.06.

[0032] A preparation method of humic acid soil conditioner:

[0033] (1) Grind 12.0kg of cottonseed meal, pass through a 80-mesh sieve, put the sieved fine powder into a reaction vessel, add 2.5kg of KOH solution and 25kg of distilled water in turn to obtain a mixed solution, heat the mixed solution to 70°C and keep stirring , stand still after reacting for 80min, and cool at the same time until the reaction materials are separated into layers to obtain cottonseed humic acid;

[0034] (2) Add 1.3kg polyacrylamide to cottonseed humic acid, stir to dissolve polyacrylamide completely, cool and filter to remove insoluble matter, mix 1.34kg urea, 1.00kg potassium dihydrogen phosphate, and 0.06kg potassium sulfate to obtain humic acid Acid soil conditioner.

[0035] A kind of...

Embodiment 2

[0041] Weigh the components (kg) according to the following weights:

[0042] Cotton meal 8.3, KOH solution 2, potassium polyacrylate 0.5, urea 0.1, potassium dihydrogen phosphate 0.04, potassium sulfate 0.02.

[0043] A preparation method of humic acid soil conditioner:

[0044] (1) Grind 8.3kg of cottonseed meal, pass through a 100-mesh sieve, put the sieved fine powder into a reaction vessel, add 2.0kg of KOH solution and then add 10kg of distilled water to obtain a mixed solution, heat the mixed solution to 80°C and Stir continuously, let stand after reacting for 40 minutes, and cool at the same time until the reaction materials are separated into layers to obtain cottonseed humic acid;

[0045] (2) Add 0.5kg potassium polyacrylate to cottonseed humic acid, stir to dissolve potassium polyacrylate completely, cool and filter to remove insoluble matter, mix 0.1kg urea, 0.04kg potassium dihydrogen phosphate, and 0.02kg potassium sulfate to obtain humic acid Acid soil condit...

Embodiment 3

[0053] Weigh the components (kg) according to the following weights:

[0054] Cotton meal 16.7, KOH solution 3, polyacrylic acid 1.9, urea 1.5, potassium dihydrogen phosphate 0.7, potassium sulfate 0.8.

[0055] A preparation method of humic acid soil conditioner:

[0056] (1) Grind 16.7kg of cottonseed meal, pass through a 80-mesh sieve, put the sieved fine powder into a reaction container, add 3kg of KOH solution in turn, and then add 35kg of distilled water to obtain a mixed solution, heat the mixed solution to 100°C and continuously Stir, react for 110min and then stand still, while cooling until the reaction materials are separated into layers to obtain cottonseed humic acid;

[0057] (2) Add 1.9kg polyacrylic acid to cottonseed humic acid, stir to dissolve polyacrylic acid completely, cool and filter to remove insoluble matter, mix 1.5kg urea, 0.7kg potassium dihydrogen phosphate, and 0.8kg potassium sulfate to obtain humic acid soil conditioner.

[0058] A kind of us...

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Abstract

The invention discloses a humic acid soil conditioner, and a composition, preparation method and application method thereof. The composition comprises, by weight, 8.3 to 16.7 parts of cottonseed meal, 2 to 3 parts of a KOH solution, 0.5 to 2 parts of a polyacrylic acid substance and 0.01 to 3.0 parts of inorganic fertilizer. The preparation method comprises the following steps: preparing cottonseed meal humic acid from the cottonseed meal and KOH solution; and then adding the polyacrylic acid substance and inorganic fertilizer so as to obtain the humic acid soil conditioner. The humic acid soil conditioner is simple in preparation flow, easy to apply and low in cost, can improve the agglomeration structure of soil, growth and development properties of crops and crop yield, has good water-solubility and can be applied wit water; and the humic acid soil conditioner is especially suitable for drip irrigation application, exerts obvious effect and can be extensively promoted and applied in the technical field of agricultural production.

Description

technical field [0001] The invention belongs to the technical field of agricultural production, and relates to a humic acid soil conditioner and its composition, preparation method and application method. Background technique [0002] There are more than 10 million tons of cottonseed in China every year, and the annual output of cottonseed cake is more than 6 million tons. The amount of cottonseed cake resources ranks first in the world. Cotton meal is a kind of reddish or yellow granular substance obtained from cottonseed through pressing, leaching and other processes. The toxic substance gossypol contained in cotton meal limits the popularization and application of cottonseed protein products. Therefore, in the existing processing technology, cotton meal is only Used as animal feed. Some scientists in Japan and the former Soviet Union produced regenerated humic acid from mild oxygen decomposition of coal and studied its use in agriculture, but this method is costly and po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/32C09K101/00
CPCC09K17/32C09K2101/00
Inventor 王开勇苏继霞樊华张凤华李万涛田小明王海江庞庆阳孟春梅安梦洁
Owner SHIHEZI UNIVERSITY
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