1, summer sowing should choose a new high-fat film with high temperature and drought resistance, high quality and high resistance, fertilization, spraying disinfectant and 800 times of liquid to sterilize the soil layer, and integrate it into the deep shaping of the occupied area to ensure the smoothness of the surface. 2. Insulation layer and maintaining highly pathogenic underground can isolate virus infection, improve inhalation energy and improve seed germination rate. 3, shepherd's purse is only 3? 6-day-old seedlings should be twisted immediately, improving fertilizer and water management methods, spraying new high-fat film, insulation layer and moisturizing and hydrating to inhibit pathogenic bacteria, which is beneficial to improve efficiency and quality.
4. Choose a sunny day for the first coat of arms, and spray vegetables and fruits, dense stems and leaves, and green plants full of green at the right time. Level up immediately. Summer irrigation is put forward in the morning of high temperature and drought, optical microscope and micro-spray technology. 5. The key pests and diseases are milk rust and budding insects.
6. The technology of two-part net film (i.e. sunshade net, insect-proof net and plastic film in the shed) is adopted. The sunshade net has many functions, such as shading, reducing high temperature, preventing the collision of rainstorm, etc., which can reasonably improve the natural environment for the growth and development of crops in summer and autumn, and prevent the exposure of green plants and the risk of skin sunburn.