Reasonable cooling, you can use water cooling, puddle cooling, shade net coverage or ground cover and other cooling. Spraying a new high-fat membrane on the leaf surface of Daejeon seedlings in the dry season can protect the moisture of seedlings, increase the vitality of plant drought resistance and self-drought resistance. According to the weather conditions to determine the ventilation time and the size of the vents, the bottom wind must be placed. Rational fertilization. The types and quantities of supplementary fertilizers are determined in combination with different periods of growth and growth of vegetables. In the growth stage of vegetables without pests and diseases, spray the targeted medicine with the new high-fat film medicine on a regular basis, and the concentration should be in accordance with the minimum usage of the instructions. In the stage where pests and diseases occur, selective drugs can be used to control diseases and insect pests in a targeted manner. Pay attention to the time of medication to avoid high temperature and strong light time, so as to achieve safe, rational, scientific medication to achieve the desired control effect.

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