A kind of microbial preparation and organic fertilizer for preventing and treating rice blight

A technology of microbial preparations and organic fertilizers, applied in the direction of chemicals for biological control, methods based on microorganisms, microorganisms, etc., can solve problems such as deterioration of human health, increased drug resistance of sheath blight, and environmental pollution, and achieve improved The effect of resistance

Active Publication Date: 2021-06-11
南京宁粮环保集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the excessive use of chemical pesticides has caused many subsequent problems, such as: environmental pollution, human health is deteriorating, the resistance of sheath blight is increasing, and even when killing sheath blight bacteria, it also harms other beneficial organisms, destroys The ecological balance of the paddy field is affected, which indirectly leads to the reduction of rice production
Due to its good environmental compatibility and sustainability, biological control is recognized as an important way to prevent and control rice sheath blight in modern agricultural production. However, the current microbial preparations for the control of rice sheath blight are not very effective, and further research is needed Improve

Method used

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  • A kind of microbial preparation and organic fertilizer for preventing and treating rice blight
  • A kind of microbial preparation and organic fertilizer for preventing and treating rice blight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A microbial preparation for controlling rice blight contains Bacillus thuringiensis (Bacilliusthuringiensis, Bt), Serratia marcesces (Serratia marcesces), Beauveriabassiana (Beauveriabassiana), Trichoderma asperellum , lactic acid bacteria (LAB), Aspergillus niger (Aspergillus niger).

[0032] The microbial preparation is a liquid microbial preparation;

[0033] Among them, Bacillus thuringiensis 3.6×10 12 cfu / mL, Serratia marcescens 1.4×10 12 cfu / mL, Beauveria bassiana 2.5×10 12 cfu / mL, Trichoderma aculeatus 5×10 11 cfu / mL, lactic acid bacteria 6.6×10 10 cfu / mL, Aspergillus niger 0.13×10 8 cfu / mL.

[0034] The preparation method of the above-mentioned microbial preparation for preventing and treating rice blight is as follows:

[0035]Inoculate a certain amount of Bacillus thuringiensis, Serratia marcescens, Beauveria bassiana, and Trichoderma aculeatus into the first culture medium, mix them evenly, and ferment in a constant temperature culture shaker for 2.5 d...

Embodiment 2

[0040] A microbial preparation for controlling rice blight contains Bacillus thuringiensis (Bacilliusthuringiensis, Bt), Serratia marcesces (Serratia marcesces), Beauveriabassiana (Beauveriabassiana), Trichoderma asperellum , lactic acid bacteria (LAB), Aspergillus niger (Aspergillus niger);

[0041] The microbial preparation is a liquid microbial preparation;

[0042] Among them, Bacillus thuringiensis 3×10 12 cfu / mL, Serratia marcescens 1.5×10 12 cfu / mL, Beauveria bassiana 2.3×10 12 cfu / mL, Trichoderma aculeatus 4×10 11 cfu / mL, lactic acid bacteria 5.5×10 10 cfu / mL, Aspergillus niger 0.33×10 8 cfu / mL.

[0043] The preparation method of the above-mentioned microbial preparation for preventing and treating rice blight is as follows:

[0044] Bacillus thuringiensis, Serratia marcescens, Beauveria bassiana, and Trichoderma aculeatus were inoculated into the first culture medium according to a certain amount, mixed evenly, and fermented in a constant temperature culture sh...

Embodiment 3

[0049] A microbial preparation for controlling rice blight contains Bacillus thuringiensis (Bacilliusthuringiensis, Bt), Serratia marcesces (Serratia marcesces), Beauveriabassiana (Beauveriabassiana), Trichoderma asperellum , lactic acid bacteria (LAB), Aspergillus niger (Aspergillus niger).

[0050] The microbial preparation is a powder microbial preparation.

[0051] Among them, Bacillus thuringiensis 5×10 12 cfu / mL, Serratia marcescens 1.36×10 12 cfu / mL, Beauveria bassiana 3.5×10 12 cfu / mL, Trichoderma aculeatus 1.1×10 11 cfu / mL, lactic acid bacteria 0.4×10 11 cfu / mL, Aspergillus niger 2.5×10 8 cfu / mL.

[0052] The preparation method of the above-mentioned microbial preparation for preventing and treating rice blight is as follows:

[0053] Bacillus thuringiensis, Serratia marcescens, Beauveria bassiana, and Trichoderma aculeatus were inoculated into the first culture medium according to a certain amount, mixed evenly, and fermented in a constant temperature culture ...

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Abstract

The invention provides a microbial preparation and organic fertilizer for preventing and treating rice blight, and relates to the field of fertilizer technology. The microbial preparation contains Bacillus thuringiensis, Serratia marcescens, Beauveria bassiana, and Acanthus Mold, lactic acid bacteria, and Aspergillus niger, the microbial preparation of the present invention has a good control effect on rice blight, and the test field using the microbial preparation of the present invention has an incidence rate of 10% or less. It can be seen that Bacillus thuringiensis, Serratia marcescens, Beauveria bassiana, Trichoderma aculeatus, lactic acid bacteria and Aspergillus niger have good synergistic effects among the microbial preparations of the present invention.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a microbial preparation and an organic fertilizer for preventing and treating rice blight. Background technique [0002] Rice is the most important food crop in China, but rice sheath blight caused by the soil-borne basidiomycetes Rhizoctonia solani Kühn is one of the most serious rice fungal diseases worldwide, especially in intensive planting The high and stable yield of rice has been seriously hindered in the system. In recent years, with the strengthening of rice production system, the increase of planting density and the utilization of high-yielding rice varieties, the damage of sheath blight in China has become increasingly serious. When natural conditions are favorable for the growth of pathogenic bacteria, the yield damage caused by them may be as high as 50%. In addition, the rice sheath blight epidemic area in my country is as high as 15 to 20 million hm 2 , whic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C12N1/14C05G3/00C05G3/60C05G3/80A01N63/23A01N63/20A01N63/38A01N63/30A01N63/34A01P3/00C12R1/07C12R1/425C12R1/885C12R1/685C12R1/645
CPCC05B17/00C05G3/00C12N1/14C12N1/20
Inventor 梁晓辉
Owner 南京宁粮环保集团有限公司
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