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1.清园一茬蔬菜收获后,很多病菌附在蔬菜残枝上散落田间,进入土壤后,成为下茬蔬菜的侵染源。因此,菜农应在蔬菜生长后期加强病害防治,直接减少病菌基数,并且在每茬蔬菜收获后,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。2.深耕深耕能破坏病菌的生存环境。一般要求每茬收获后深耕40厘米,借助自然条件,如低温、太阳紫外线
1. Qingyuan a crop of vegetables harvest, a lot of bacteria attached to the vegetable residue scattered on the field, into the soil, become the next source of vegetable infection. Therefore, vegetable growers should strengthen the prevention and treatment of diseases in the latter part of the growth of vegetables, directly reduce the number of bacteria base, and in each crop of vegetables, the complete elimination of field leaves, leaves of vegetables susceptible to root disease but also remove residual roots. Deep plowing can destroy the living environment of germs. General requirements of each crop after harvest plowing 40 cm, with natural conditions, such as low temperature, the sun’s ultraviolet