Reasonable fertilization should increase the application of phosphorus and potassium fertilizers and organic fertilizers and control nitrogen fertilizers. Inhibit sap growth, apply potassium dihydrogen phosphate and an appropriate amount of farmyard manure once at the beginning and middle of the tuberculosis, 15 to 20 grams per plant each time, and apply it to clean water or retting decomposed manure water.
Scientifically supply water during the period when the Chinese cabbage is filled with cores, keep the water evenly and adequately supplied, and avoid excessive or short periods, and sometimes dry or wet. Water should be watered in the morning and evening, 1 to 1.5 kg per plant each time, cover the border with straw or other weeds to keep the soil moist.
Prevention and control of pests If pests are found, spray 2 to 3 times of 1500 times liquid Nongdi Le, 1500 times liquid Desen Ammonium mixture, or 1500 times liquid laspen, 1000 times liquid can kill the mixed liquid for control. If the soft rot is serious, add 5000 times solution of agricultural streptomycin and spray with it. ,
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