Antagonist bacterium for preventing and treating continuous cropping hot pepper epidemic disease and microbial organic fertilizer thereof

Abstract

The invention relates to an antagonist bacterium which can overcome or eliminate a hot pepper epidemic disease and produced microbial organic fertilizer thereof, belonging to an intensive agriculture production technology. By the invention, an antagonist bacterium (Bacillus pumilus NJLZ-8) which has an obvious antagonist function on pathogenic oomycetes of the hot pepper continuous cropping epidemic disease is separated; the antagonist bacterium is mixed with organic fertilizer to prepare microbial organic fertilizer; and the fertilizer contains more than 1*108 antagonist microorganisms per gram, 4-5 percent of total nitrogen ( more than 90 percent of organic nitrogen), 6-10 percent of total nitrogen-phosphorus-potassium nutrients and 30-35 percent of organic matter. Proved by tests, the microbial organic fertilizer can rapidly breed antagonist bacteria after being applied into soil, form a preponderant group in the soil and has more than 80 percent of biological preventing and treating rate on the hot pepper epidemic disease in the soil with serious hot pepper epidemic disease. The generation of the hot pepper epidemic disease can be prevented to a large extent by applying the microbial organic fertilizer on the soil without forming continuous cropping obstacles for a long time.

Description

1. Technical field [0001] The invention relates to an antagonistic bacteria capable of preventing and treating continuous cropping pepper blight and its microbial organic fertilizer, which belongs to the intensive agricultural production technology and is specially used for overcoming and eliminating the problem of continuous cropping pepper blight. 2. Background technology [0002] Pepper is native to the tropical and subtropical regions of Central and South America, and now it is widely cultivated in various parts of my country. It has become one of the vegetable crops with the largest cultivated area in my country, and it is also an important economic crop for exporting foreign exchange. With the increase of cultivation years, large-scale occurrence of soil-borne diseases in pepper planting areas, especially the emergence of industrialization, specialization, and large-scale operation modes of facility production, has made soil-borne diseases more serious. Pepper blight i...

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Problems solved by technology

[0003] On the other hand, the incineration of rice, wheat, corn, rapeseed and other crop straws, and the disposal of livestock and poultry manure after large-scale breeding not only seriously pollute the environment, but also greatly waste the organic fertilizer and bio-organic fertilizer products. Raw materials; a large number of nutrient resources (C, N, P, K, S and trace elements) are lost outside the soil-plant system, which obviously weakens the ability of my country's agricultural sustainable development

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