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Microbial compound nitrogen fertilizer and preparation method thereof

A microbial and nitrogen fertilizer technology, applied in fertilizer forms, fertilization devices, fertilizer mixtures, etc., can solve problems such as the loss of volatile nitrogen fertilizer, and achieve the effects of improving absorption, avoiding ammonia volatilization loss, and promoting infection rate.

Inactive Publication Date: 2012-09-19
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During our research, we found that the large amount of ammonia volatilization in dry land is the main factor affecting the loss of nitrogen fertilizer, and there is no good solution yet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The microbial compound nitrogen fertilizer of this embodiment is composed of the following components by weight percentage: 0.01% of immobilized nitrifying bacteria, 0.01% of mycorrhizal bacteria enrichment solution, 0.1% of clay filler, and the balance is urea. Prepared as follows:

[0020] 1) Measure immobilized nitrifying bacteria, mycorrhizal fungus enrichment solution, clay filler and urea according to the formula, mix evenly, and spray water to moisten;

[0021] 2) Send the moistened mixture into the granulator to press for granulation;

[0022] 3) Blow dry the granulation and pack it.

Embodiment 2

[0024] The microbial compound nitrogen fertilizer of this embodiment is composed of the following components by weight percentage: 0.1% of immobilized nitrifying bacteria, 0.2% of mycorrhizal bacteria enrichment solution, 0.5% of clay filler, and the balance is urea. Prepared as follows:

[0025] 1) Measure immobilized nitrifying bacteria, mycorrhizal fungus enrichment solution, clay filler and urea according to the formula, mix evenly, and spray water to moisten;

[0026] 2) Send the moistened mixture into the granulator to press for granulation;

[0027] 3) Blow dry the granulation and pack it.

Embodiment 3

[0029] The microbial compound nitrogen fertilizer of this embodiment is composed of the following components by weight percentage: 0.2% of immobilized nitrifying bacteria, 0.1% of mycorrhizal bacteria enrichment solution, 1% of clay filler, and the balance is urea. Prepared as follows:

[0030] 1) Measure immobilized nitrifying bacteria, mycorrhizal fungus enrichment solution, clay filler and urea according to the formula, mix evenly, and spray water to moisten;

[0031] 2) Send the moistened mixture into the granulator to press for granulation;

[0032] 3) Blow dry the granulation and pack it.

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Abstract

The invention discloses a microbial compound nitrogen fertilizer, comprising the following components in percentage by weight: 0.01-20% of immobilized nitrobacteria, 0.01-20% of mycorrhizal fungi enrichment liquid, 0.1-50% of clay filler and balance of urea. The microbial compound fertilizer provided by the invention is added with the immobilized nitrobacteria, mycorrhizal fungi enrichment liquid and clay filler, which can be applied with urea at the same time into the soil to accelerate nitration of urea, thereby avoiding the volatilization loss of ammonia realized by urea hydrolysis and improving the utilization ratio of nitrogen in the nitrogen fertilizer; and meanwhile, the fertilizer is also inoculated with exogenous mycorrhizal fungi to promote the infection rate of mycorrhizal fungi to crops, improve the phosphorous absorption of the crops, benefit the expansion of roots, and further increase the nitrogen adsorption. By the cooperation of the two aspects above, the microbial compound nitrogen fertilizer can improve the utilization rate of nitrogen fertilizer, and can be applied to crops in the drought environment, especially for base fertilizer for culturing winter wheat.

Description

technical field [0001] The invention relates to a microbial compound nitrogen fertilizer and a preparation method of the compound nitrogen fertilizer. Background technique [0002] As a new type of functional fertilizer, microbial fertilizer has been widely used in agricultural production. However, the current design of microbial fertilizers is basically aimed at the decomposition of soil organic matter. By adding exogenous microorganisms, the decomposition of soil organic matter is promoted and the nutrients fixed by the organic matter are released. There are also some microbial fertilizers that address the problem that some nutrients in the soil are fixed by the soil and are difficult to dissolve. By adding microorganisms, the dissolution and release of these nutrients are promoted. This aspect is mainly some phosphate-solubilizing bacteria. However, the design of these microbial fertilizers has ignored the fact that in contemporary agricultural production, the applicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G5/00
Inventor 徐晓峰王发园苗艳芳郭大勇
Owner HENAN UNIV OF SCI & TECH
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