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一、清园。一茬蔬菜收获后,很多病菌附在蔬菜残枝上散落田间,成为下茬蔬菜的侵染源。因此应在蔬菜生长后期加强病虫害防治,并在蔬菜收获后,彻底清除田间残枝败叶,对易感根系病害的蔬菜还要清除残根。二、深耕。目的是破坏病菌生存环境,要求每次收获后深耕土壤40厘米,借助太阳紫外线等,杀死土壤病菌。三、消毒。在夏季蔬菜换茬间系,深耕后灌足水,盖
First, the Qing Park. After a harvest of vegetables, many bacteria attached to the branches of vegetables scattered on the field, become the next source of vegetable infection. Therefore, we should strengthen pest control in the late growth of vegetables, and after the harvest of vegetables, completely eliminate the leaves of the branches and leaves of the susceptible root diseases, but also remove residual roots of vegetables. Second, deep plowing. The purpose is to destroy the living environment of germs, requiring 40 cm soil to be harvested after each harvest, with the help of the sun’s ultraviolet rays to kill soil bacteria. Third, disinfection. In the summer vegetable exchange between the Department, deep plowing enough water, cover