Antagonistic bacteria for preventing bacterial wilt of potatoes and microorganism organic fertilizer thereof

Abstract

The invention relates to antagonistic bacteria for preventing bacterial wilt of potatoes and a microorganism organic fertilizer thereof, belonging to a production technology for intensive agriculture. In the invention, the antagonistic bacteria (Bacillussubtilisi-23) which has remarkable antagonism on pathogenic bacteria of the bacterial wilt of potatoes are obtained by separation; the antagonistic bacteria and an organic compost are made into a microorganism organic fertilizer; in the fertilizer, the content of the antagonistic bacteria is above 1*10<8>cfu.g<-1>, the content of total nitrogen is 4-5%, the content of total NPK nutrients is 6-10% and the content of organic matters is 30-35%. Experiments show that after being applied to the soil, the microorganism organic fertilizer enables the antagonistic bacteria to reproduce rapidly and form an advantageous group in the soil; and in addition, the microorganism organic fertilizer has a prevention rate of more than 80% on the bacterial wilt of potatoes in continuous cropping soil severely suffering from the bacterial wilt of potatoes. The application of the microorganism organic fertilizer in the invention can effectively prevent occurrence of the bacterial wilt of potatoes.

Description

1. Technical field [0001] The invention relates to an antagonistic bacteria capable of preventing and treating potato bacterial wilt and its microbial organic fertilizer, which belongs to the intensive agricultural production technology and is specially used for preventing and controlling potato bacterial wilt. 2. Background technology [0002] Potato bacterial wilt is caused by the fungus R. solanaceae ( Ralstonia solanacearum ) infection, it is a bacterial soil-borne disease that is prone to occur under high temperature, high humidity, and rainy conditions, and is mainly distributed in tropical, subtropical, and temperate regions. Once it occurs, it is difficult to control and often causes large-scale death of crops Harvest failure, even, is a major limiting factor in the production of many crops. Potatoes are cultivated all over the world, and potato bacterial wilt has become a major obstacle affecting high yields of potatoes. In India, bacterial wilt can cause a loss o...

AI Technical Summary

Problems solved by technology

At present, there are many ways to prevent and control it at home and abroad, but because this pathogen has many variations in the environment, in addition to the fact that the bacteria has many transmission routes and a wide range of hosts, there is still no good control method

[0003]On the other hand, rice, wheat, corn, rapeseed and other crop straws are burned on the spot, and livestock and poultry manure after large-scale breeding are discarded on the spot, etc., which make a large amount of nutrient resources Lost outside the soil-plant system, not only seriously pollutes the environment, but also greatly wastes organic resources that can be used as raw materials for the production of organic fertilizers and bio-organic fertilizers, which is not conducive to the sustainable development of my country's agriculture

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