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Modified glutamic acid fertilizer synergist and production method and application thereof

A technology of fertilizer synergist and production method, which is applied in the direction of fertilizer mixture, application, fertilization device, etc., can solve problems such as prolonging the retention time of urea nitrogen, achieve the effects of reducing nutrient loss, wide source of raw materials, and avoiding secondary pollution

Inactive Publication Date: 2012-10-03
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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AI Technical Summary

Problems solved by technology

[0003] According to domestic and foreign literature reports, humic acid can not only improve soil, but also is a good nitrification inhibitor. Adding this substance to urea can significantly improve fertilizer efficiency and prolong the retention time of urea nitrogen in soil. It is an effective slow-release urea. agents and synergists

Method used

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  • Modified glutamic acid fertilizer synergist and production method and application thereof

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Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1: Preparation of modified humic acid fertilizer synergist of the present invention

[0055] A, the weathered coal raw material is pulverized to more than 80 orders, and 10 times of its weight is added to its coal powder, the concentration is 0.3% sodium hydroxide solution by weight and 2 times, the concentration is 5% hydrogen peroxide by weight, Heating and boiling continued for 20 minutes, then cooling and centrifugation to obtain a liquid, which was then heated and concentrated to a solid content of 10% by weight, and this concentrate was humic acid solution A1.

[0056] B, the humic acid solution A1 that obtains with step A is mother liquor, is 4.8gNa according to every liter of mother liquor 2 B 8 o 13 4H 2 O adds Na to the mother liquor 2 B 8 o 13 4H 2 0, obtain humic acid solution A2 after fully dissolving;

[0057] C. Prepare 0.1mol / L EDTA-2Na and ZnSO respectively 4 with MnSO 4 solution, and the solutions were mixed according to the volume...

Embodiment 2

[0059] Embodiment 2: Preparation of modified humic acid fertilizer synergist of the present invention

[0060] A, the raw material lignite is pulverized to 100 mesh, and 9 times of its weight, concentration of 0.5% potassium hydroxide solution and 1 times of concentration of 15% hydrogen peroxide are added to its coal powder, and after heating and continuous boiling for 25 minutes, Then cooling, centrifugation to obtain a liquid, it is heated and concentrated until the solid content therein is 5% by weight, this concentrate is humic acid solution A1.

[0061] B, with the humic acid solution A1 that step A obtains as mother liquor, according to every liter of mother liquor is 7.5gNa 2 B 8 o 13 4H 2 O adds Na to the mother liquor 2 B 8 o 13 4H 2 0, obtain humic acid solution A2 after fully dissolving;

[0062] C. Prepare 0.2mol / L EDTA-2Na and ZnSO respectively 4 with MnSO 4 solution, and the solution is mixed according to the volume ratio of 2:1:1 to obtain the chelate...

Embodiment 3

[0064] Embodiment 3: Preparation of modified humic acid fertilizer synergist of the present invention

[0065] A, the raw material lignite is crushed to 100 mesh, and 8 times of its weight, concentration of 0.1% potassium hydroxide solution and 3 times of concentration of 30% hydrogen peroxide are added to its coal powder, after heating and continuous boiling for 30 minutes, Then cooling, centrifugation to obtain a liquid, it is heated and concentrated until the solid content therein is 15% by weight, this concentrate is humic acid solution A1.

[0066] B, the humic acid solution A1 that obtains with step A is used as mother liquor, is 9.6gNa according to every liter of mother liquor 2 B 8 o 13 4H 2 O adds Na to the mother liquor 2 B 8 o 13 4H 2 0, obtain humic acid solution A2 after fully dissolving;

[0067] C. Prepare 0.3mol / L EDTA-2Na and ZnSO respectively 4 with MnSO 4 solution, and the solution is mixed according to the volume ratio of 2:1:1 to obtain the chela...

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Abstract

The invention relates to a modified glutamic acid fertilizer synergist and a production method and an application thereof. The fertilizer synergist is a modified glutamic acid fertilizer synergist obtained by extracting glutamic acid with small molecular amount from weathered coal and humate serving as raw materials with diluted alkali or diluted acid and hydrogen peroxide and adding chelated state trace elements. Due to the adoption of the modified glutamic acid fertilizer synergist, the soil urease activity can be suppressed remarkably, the ammonia volatilization loss is reduced, and slow release of a fertilizer is enhanced; root growth of crops can be facilitated, root activity is increased, and the capabilities of crops of absorbing phosphorus, potassium and medium and trace elements are increased; and nutrient loss can be reduced, secondary pollution is avoided, and the production cost of a synergic fertilizer is reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of chemical fertilizer efficiency enhancement. More specifically, the present invention relates to a modified humic acid fertilizer synergist, a production method of the modified humic acid fertilizer synergist, and a use of the modified humic acid fertilizer synergist. 【Background technique】 [0002] The utilization rate of chemical fertilizers in my country is generally low. The average utilization rate of nitrogen fertilizer is about 30%, the utilization rate of phosphorus fertilizer is about 25%, and the utilization rate of potassium fertilizer is about 50%. A lot of researches have been carried out and certain effects have been achieved, but there are still problems such as complex fertilizer production process, high cost, inconvenient use, and difficulty in popularizing and applying fertilizers on field crops. In recent years, how to upgrade the technology of my country's fertilizer industry under th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
Inventor 赵秉强袁亮李燕婷林治安温延臣李娟杨相东高仁升殷军港
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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