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Summer cabbage does not contain the response measures
Planting Chinese cabbage in summer often results in the phenomenon of no leaf rolling and no inclusion. This is due to the high temperature in the summer, heavy rainfall, high humidity, and serious pests and diseases. In addition, improper fertilization, excessive nitrogen fertilizer, lack of phosphorus and potassium fertilizers, and uneven water supply are the main reasons why cabbage is not included in the summer. Only by adopting the following comprehensive technical measures to strengthen management can the Chinese cabbage be well packaged, the food balls be strong, the yield high and the quality good. First, rational fertilization. In Chinese cabbage cabbage, the application of phosphorus and potassium fertilizers and organic fertilizers to control nitrogen fertilizer to inhibit its growth. Second, scientific water supply. In Chinese cabbage, it is necessary to maintain a uniform and sufficient supply of water. It should be avoided when there is a lot of time, when it is dry, and when wet, it is advisable to keep the soil moist. Third, prevention and treatment of pests. During the Chinese cabbage cabbage, it is necessary to pay attention to the inspection of the leaves and find that there are pests and diseases, that is, to continuously spray 2-3 times the 1500 times liquid Daisin ammonium mixture, or 1500 times liquid Leben, 1000 times can kill Mixed solution for prevention and treatment. If the soft rot disease is seriously damaged, 5000 times of agricultural streptomycin should be added together with spraying.