Quick sterilization method of banana wilt soil-borne pathogenic bacteria

Abstract

The invention provides a quick sterilization method of banana wilt soil-borne pathogenic bacteria (fusarium oxysporum f. sp. Cubense), and belongs to the technical fields of agricultural land governance and agricultural utilization. The method comprises the following steps: firstly adding an organic carbon source to continuous cropping soil that a continuous cropping obstacle occurs or the incidence of banana wilt is relatively high, and keeping the soil under an anaerobic state to create a strong reducing environment, reducing the oxidation-reduction potential of the soil to be less than minus 80mV within 72h and keeping the soil under the strong reducing environment for 2-4 weeks so as to obtain healthy soil which is relatively low in content of the fusarium oxysporum f. sp. Cubense. By creating the strong reducing environment, the quick sterilization method disclosed by the invention can quickly promote the growth and the metabolism of anaerobic microorganisms in the soil so as to generate a great amount of metabolites to effectively reduce the number of fusarium oxysporum in the affected soil; the method not only can improve the soil microflora but also can relieve the incidence of soil-borne diseases in crops; the method can increase the pH value of acid soil and improve the physiochemical properties of the soil; and the method is low in cost, easily available in materials, simple in operation and easy in popularization at grass-root level.

Description

technical field [0001] The invention belongs to the technical field of agricultural land management and agricultural utilization, and relates to a biological disinfection method for quickly reducing the number of pathogenic microorganisms in banana continuous cropping soil, and in particular to a rapid sterilization method for soil-borne pathogenic bacteria of banana wilt. Background technique [0002] Bananas are one of the most important crops in the world, serving as a major food and economic source in many developing countries. Bananas are a stable export commodity in the agriculturally based economies of Latin America, Africa and Asia, and are the fifth most important agricultural commodity in world trade. At the same time, banana is one of the five famous and high-quality fruits in southern my country, and is an important resource for domestic market and export earnings. Bananas are grown in 120 countries and regions around the world. With the increasing demand for ba...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a rapid sterilization method for banana wilt soil-borne pathogenic bacteria in view of a series of practical problems such as the high content of pathogenic bacteria in the current banana continuous cropping soil, the serious occurrence of banana wilt, and the poor effect of control methods

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