Fertilizer slow-release synergistic agent and preparation method thereof

A fertilizer slow-release and synergistic technology, which is applied in fertilizer mixtures, fertilization devices, agricultural gas emission reduction, etc., can solve the problem of incorrect application period methods or fertilizers used, trouble in making fertilizer synergists, and increased economic burden on farmers, etc. problems, to increase the competitiveness of commodities, reduce the number of top-dressing and the amount of top-dressing, and reduce environmental non-point source pollution.

Inactive Publication Date: 2012-10-31
ANHUI FURUIXUE CHEM SCI & TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The utilization rate of fertilizers is very low. The main reasons are: unsuitable amount of fertilization (too much or insufficient), incorrect application period, land conditions, methods or fertilizers used, and the leaching, erosion, volatilization, and reaction of fertilizers in the soil. Losses caused by nitrification, fixation, et

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1. Preparation of fertilizer slow-release synergist 1000kg

[0023] Weigh 100kg (10%) of potassium polyaspartate, 50kg (5%) of benzoquinone, 50kg (5%) of dicyandiamide, 20kg (2%) of sodium α-naphthalene acetate, and 30kg of sodium indole acetate according to the ratio. (3%), 200kg (20%) of sodium humate, 550kg (55%) of zeolite, pulverize each of the above-mentioned raw materials weighed in proportions, sieving to 50 mesh, and then add each raw material to the mixer to proceed Stir and mix, and measure and package after mixing to obtain fertilizer slow-release synergist.

Example Embodiment

[0024] Example 2, Preparation of fertilizer slow-release synergist 1000kg

[0025] Weigh 35kg (3.5%) of potassium polyaspartate, 50kg (5%) of catechol, 50kg (5%) of 2-sulfathiazole, 20kg (2%) of sodium α-naphthalene acetate, and nitrate according to the ratio Sodium phenolate 30kg (3%), sodium humate 300kg (30%), zeolite 515kg (51.5%), each of the above-mentioned raw materials weighed in proportions are crushed and sieved to 50 mesh, and then each raw material is added to the mixer Inside, mixing is carried out, and after being evenly stirred, measuring and packaging are carried out to obtain a slow-release fertilizer synergist.

Example Embodiment

[0026] Example 3 Preparation of 1000kg fertilizer slow-release synergist

[0027] Weigh 150kg (15%) of potassium polyaspartate, 3kg (0.3%) of N-butyl thiophosphoric acid triamide (NBPT), 20kg (2%) of amidinothiourea, and 50kg of 2-sulfathiazole according to the ratio. (5%), 3kg of gibberellin (0.3%), 3kg (0.3%) of sodium nitrophenolate, 300kg (30%) of sodium humate, 471kg (47.1%) of bentonite, and the above-mentioned raw materials weighed in proportion After crushing and sieving to 50 meshes, each raw material is added to the mixer, stirred and mixed, and after being evenly stirred, it is measured and packaged to obtain a slow-release fertilizer synergist.

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Abstract

The invention discloses a fertilizer slow-release synergistic agent and a preparation method thereof. The fertilizer slow-release synergistic agent comprises the following raw materials in percentage by mass: 0.1-20 % of polyaspartic acid and slat thereof, 0.1-10 % of urease inhibitor, 0.1-30 % of nitrification inhibitor, 0.03-5 % of plant growth regulating agent, 10-35 % of soil regulating agent and 10-80 % of carrier. The fertilizer slow-release synergistic agent disclosed by the invention is mainly used for the slow-release synergism of a compound mixing fertilizer, is increased in the utilization rate of the fertilizer, and is capable of effectively improving the soil, and the soil moisture can be preserved; and when the fertilizer slow-release synergistic agent is used, the fertilizer slow-release synergistic agent can be added into a material feeding system or an enveloping drum together with the fertilizer raw materials and mixed with the fertilizer raw materials, the effect of slow-release synergism can be realized, and the dosage of the fertilizer slow-release synergistic agent is 4-8 kg per ton fertilizer.

Description

technical field [0001] The invention relates to a fertilizer synergist, in particular to a fertilizer slow-release synergist and a preparation method thereof. Background technique [0002] my country is a big agricultural country, and it is also a big country in the production and use of chemical fertilizers. my country's chemical fertilizer production accounts for about 20% of the world's total output, and its application rate accounts for about 30%, ranking first in the world. However, according to my country's fertilizer-related measurements, the utilization rate of nitrogen in chemical fertilizers is 30%-70%, and that of phosphate fertilizers is 10%. %-25%, potash fertilizer is 40%-70%. The utilization rate of fertilizers is very low. The main reasons are: unsuitable amount of fertilization (too much or insufficient), incorrect application period, land conditions, methods or fertilizers used, and the leaching, erosion, volatilization, and reaction of fertilizers in t...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCY02P60/21
Inventor 刘清白李建勇
Owner ANHUI FURUIXUE CHEM SCI & TECH INC
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