Successive cropping obstacle auto-toxic material degradation bacterium and compound microbial fertilizer prepared by same

A technology of self-toxic substances and degrading bacteria, applied in the direction of microorganisms, microorganism-based methods, fertilizer mixtures, etc., to achieve the effects of enhancing disease resistance, reducing incidence, and improving micro-ecological systems

Inactive Publication Date: 2014-03-05
LIAONING ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In a word, a kind of continuous cropping barrier self-toxic substance degrading bacteria and the compound microbial fertilizer prepared by it that can improve the soil aggregate structure and build beneficial flora have not been reported yet.

Method used

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  • Successive cropping obstacle auto-toxic material degradation bacterium and compound microbial fertilizer prepared by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Put the autotoxic substance-degrading bacteria, nitrogen-fixing bacteria and silicate bacteria in the culture medium according to the strain ratio of 1:1:2, and cultivate them for 16 hours under the conditions of pH=7.0 and temperature 39°C, and the obtained composite microbial bacteria agent; the composition and weight ratio of the culture medium are: bean cake powder 2%, wheat bran 0.5%, (NH 4 ) 2 SO 4 0.5%, K 2 HPO 4 0.07%, KH 2 PO 4 0.03%, MgSO 4 ·7H 2 O0.01%, the balance is water.

[0051] Then mix coal humic acid, ammonium sulfate, and water with an organic matter greater than 45wt% in a weight ratio of 5:1:0.5, seal it up, and carry out ammoniation and chelation reaction at 25°C, and react for 10 days to obtain humic acid ammonia .

[0052] Finally, the compound microbial agent and ammonium humate are mixed according to the weight ratio of 3:7 to obtain the final compound microbial fertilizer.

[0053] The pH of the fertilizer is 1-3, the content of hum...

Embodiment 2

[0055] Add 10 kilograms of the compound microbial fertilizer prepared in Example 1 to 40 kilograms of compound fertilizer 15-15-15 (that is, the mass content of nitrogen, phosphorus and potassium is 15%), mix and apply to 1 mu of tomato In the greenhouse, the control group is compound fertilizer 15-15-15, with the same application rate, cultivation conditions and cultivation time, the total output of tomato of the product of the present invention is 17.8% higher than that of the control group, and the economic benefits are correspondingly improved, see Table 1 for details .

[0056] Table 1 Effects of different treatments on tomato yield

[0057]

[0058] Other crops are also suitable for this fertilizer.

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Abstract

The invention relates to a auto-toxic material degradation bacterium. The collection institution of the auto-toxic material degradation bacterium is China general microbiological culture collection center, the collection number is CGMCC No. 6896, the collection date is 30th, November, 2012. The compound microbial fertilizer consists of compound microbial agent and ammonia humic acid according to the weight ratio of (2-3):(7-8). By degrading the auto-toxic material in the soil, enhancing a soil granular structure and constructing effective microbial community strength, the formation of the soil granular structure is enhanced, a micro-eco-system of the soil is greatly improved, the permeability of soil is enhanced, and the moisture and fertility preserving capability of the soil are improved. By adoption of the auto-toxic material degradation bacterium and the compound microbial fertilizer, the soil has the development potential of sustainably increasing both production and income; and in addition, a base fertilizer is transformed effectively, the small-molecular nutrition and active factors are released, the soil fertility is enhanced, the damage to the soil caused by chemical fertilizers, pesticides and harmful factors is released, and the successive cropping obstacle is overcome.

Description

technical field [0001] The invention relates to the application of self-toxic substance degrading bacteria in continuous cropping obstacle soil to improve crop quality, which belongs to microbial fertilizers, and more specifically relates to continuous cropping obstacle autotoxic substance degrading bacteria and the compound microbial fertilizer prepared therefrom. Background technique [0002] With the increase of cultivation years, the accumulation of soil self-toxic substances and secondary salinization phenomenon continue to appear and become increasingly serious, seriously affecting the yield and quality of crops, and hindering the sustainable development of crop production. In addition, the accumulation of self-toxic substances in the soil makes the soil micro-ecological environment tend to vicious circle. [0003] In conclusion, a kind of continuous cropping obstacle autotoxic substance degrading bacteria that can improve soil aggregate structure and create beneficial...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C05G3/04C12R1/125C05G3/80
Inventor 何志刚娄春荣安景文
Owner LIAONING ACAD OF AGRI SCI
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