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一、彻底清园。除在蔬菜生长后期加强病害防治,直接减少病原菌的基数外,应重点在每季蔬菜收获后,彻底清除田间的残枝败叶。此外,对易感根部病害的蔬菜,还要彻底清除残根。 二、去陈换新。对投资大、效益高、设施固定、不易迁移的保护地,可采取去除陈土,换用新土的办法,控制土壤病害的传播。即:适当的换去保护地耕
First, completely clear the park. In addition to strengthening the disease prevention and control in the latter part of the growth of vegetables, direct reduction of the base of pathogens, should focus on the harvest of vegetables in the season, the complete removal of the branches of the leaves. In addition, the root cause of susceptible vegetables, but also the complete removal of residual roots. Second, to Chen new. With regard to the protected areas with large investment, high efficiency, fixed facilities and difficult to migrate, the measures of removing soil and replacing new earth may be adopted to control the spread of soil diseases. That is: appropriate to protect the land plow