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Microbial preparation and organic fertilizer for prevention and treatment of rice banded sclerotial blight

A technology of microbial preparations and organic fertilizers, applied to chemicals for biological control, methods based on microorganisms, microorganisms, etc., can solve the problems of destroying the ecological balance of rice fields, reducing rice production, and deteriorating human health, and achieve good synergistic effects , good control effect, and the effect of improving resistance

Active Publication Date: 2019-11-22
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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  • Microbial preparation and organic fertilizer for prevention and treatment of rice banded sclerotial blight
  • Microbial preparation and organic fertilizer for prevention and treatment of rice banded sclerotial 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 prevention and treatment of rice banded sclerotial blight, and relates to the technical field of fertilizer. The microbial preparation includes bacillius thuringiensis, serratia marcesces, beauveria bassiana, trichoderma asperellum, lactic acid bacteria and aspergillus niger. The microbial preparation has good prevention andtreatment effect on rice banded sclerotial blight, and no matter the incidence rate of holes or the incidence rate of strains of experimental fields with the microbial preparation are 10% or less, and through comparative tests, bacillius thuringiensis, serratia marcesces, beauveria bassiana, trichoderma asperellum, lactic acid bacteria and aspergillus niger in the microbial preparation are indicated to have good synergistic effect on each other.

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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IPC IPC(8): C12N1/20C12N1/14C05G3/00C05G3/02C05G3/04A01N63/02A01N63/04A01P1/00C12R1/07C12R1/425C12R1/885C12R1/685C12R1/645
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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