A kind of environment-friendly greenhouse disinfection method

Abstract

An environment-friendly greenhouse disinfection method aims at killing harmful microbes and insects in soil, improving the disinfection effect of greenhouses and reducing the use of chemical agents. The greenhouses are closed during the idle period of the greenhouses, and the soil humidity is kept at 70% or higher; 8 cubic meters to 15 cubic meters of composite bacterial fertilizer is applied per mu, wherein the composite bacterial fertilizer comprises chicken manure which is not thoroughly decomposed and a beneficial microbial agent, the microbial agent comprises bacteria 1010 CFU / g, actinomycete 108 CFU / g, yeast 108 CFU / g and mould 108 CFU / g; the addition amount of the microbial agent in the chicken manure is 500 grams per cubic meter; the grounds of the greenhouses are completely covered with transparent plastic thin films; the temperature of soil is raised to 50 DEG C or higher through sunshine radiation, and the aims of killing harmful microbes and insects in the soil are achieved; the time for soil treatment has to be 30 days or longer.

Description

technical field [0001] The invention relates to a novel environment-friendly and efficient greenhouse soil disinfection method, which belongs to the field of green agricultural production. Background technique [0002] The degree of facility agriculture development has become one of the important symbols to measure the agricultural modernization level of a country or region. After more than 30 years of rapid development of my country's facility agriculture, the national greenhouse area is about 45 million mu, ranking first in the world. In the northern region, vegetables and fruits produced in greenhouses have become one of the important food sources for consumers in winter. Since the greenhouse is in a high-temperature, high-humidity and relatively closed environment for a long time during the growing season, it is easy to breed various diseases and insect pests, and the accumulation and reproduction of these pathogenic bacteria and insect eggs in the soil and air will cau...

AI Technical Summary

Problems solved by technology

Although these methods can effectively kill pathogenic bacteria and insect eggs in the soil, the raw materials are highly toxic, such as lime nitrogen, which is an inorganic poisonous drug, which has a stimulating effect on animal skin and mucous membranes (conjunctiva, upper respiratory tract), and can be dissolved in sweat or mucous membrane secretion. People who are exposed to lime nitrogen can develop erythematous dermatitis; dithiocyanomethane is toxic if inhaled and swallowed, it is a serious irritant to the eyes and can cause skin allergies

These will lead to serious problems of chemical residues in vegetables and fruits produced in greenhouses, endangering food safety