Hot summer rain is the most harmful to vegetables. By then, the main work should be done as follows. After the hot rain storm, it is best to organize artificial watering immediately and water the cold spring or well water to wash away the sediment adhering to the stems and leaves. In order to reduce the soil temperature, increase the oxygen in the soil and keep the vegetables in normal breathing state. The hot rain caused the leaves to be covered with mud, which affected the growth of the vegetables. Only by washing away the sediment adhering to the stems and leaves, and immediately correcting, reducing the phenomenon of mutual squeeze, it is possible to make the normal growth of vegetables. After the hot rain hits, the activity of vegetable roots is very weak and the water absorption is poor. At this time, foliar fertilizer should be sprayed in a timely manner, and potassium dihydrogen phosphate should be added to the foliar with 1% imported urea to enhance the ability of absorbing fertilizer and quickly restore vitality. After removing the waterlogging, the soil should be ploughed in time and the ash should be sprayed or sprayed before the dew is dry to prevent some disease infections and large areas from occurring.
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