Sterilizing method used for banana wilt disease

Abstract

The invention relates to a sterilizing method used for the banana wilt disease and relates to the technical field of agriculture. Organic carbon sources are added into continuously cropped soil in which continuous cropping obstacles occur and the incidence of the banana wilt disease is relatively high, the soil anaerobic condition is maintained, a strong reducing environment is created, the redox potential of the soil is reduced to -100 mV or below within 48 hours, then the mixture of ammonium bicarbonate and lime or stronger ammonia water is used for irrigating the soil, the number of soil fusarium oxysporum (pathogenic bacteria of the banana wilt disease) in each gram of soil is controlled to be 90 or below, the strong reducing environment of the soil is maintained for 1-2 weeks, healthy soil with relatively low fusarium oxysporum f.sp.cubense content is obtained, the humility of the soil is regulated, so each gram of the soil contains 8-106 exogenously added beneficial microorganisms, and a dominant group is formed in the soil. Soil microorganism floras are improved, the incidence of the after crop banana wilt disease is reduced, and compared with an individual rice and banana crop rotation method, the wilt disease prevention and control effects are improved and the growth of bananas is promoted.

Description

technical field [0001] The invention relates to a method for sterilizing banana fusarium wilt and relates to the field of agricultural technology. 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. While the global banana industry is developing rapidly, a disease that is destructive to bananas—soil-borne banana wilt is also spreading in banana planting areas. Some banana gardens can no longer grow bananas, and there is a phenomenon of abandonment. As a result, the banana planting area has gradually decreased, and the banana industry has been hit hard. [0003] Soil-borne banana wilt, also known as banana Panama disease and yellow leaf disease, is a devastating fungal disease caused by the infection of Fusarium oxysporum Cuban specialization in the soil and causes vascular necrosis. [0004] At present, the occurrence of soil-borne banana wilt is mainly slowed down...

AI Technical Summary

Problems solved by technology

Soil flooding is currently a commonly used method to create a soil restoration environment, but studies have shown that soil flooding treatment takes 3-4 months or longer to reduce the number of pathogenic bacteria in the soil, and the effect is limited, and in soil with high pathogenic bacteria content doesn't even work

In addition, according to the practice of banana producers for many years, neither the application of pesticides nor the treatment of planting soil can effectively prevent the occurrence and expansion of soil-borne banana wilt

The use of disease-free tissue culture seedlings and disease-resistant varieties can not achieve the ideal control effect, so the prevention and control of soil-borne banana wilt has not yet found an ideal method