Ask about open field Chinese cabbage planting technology. It is reported that Chinese cabbage with high temperature resistance, strong disease resistance, and long-term neatness should be selected for planting. The plots rich in organic matter, loose and fertile soil are suitable for planting Chinese cabbage. Chinese cabbage is usually planted in autumn, and 3-5 days after the beginning of autumn is the most suitable for planting. Chinese cabbage can be transplanted after 30 days after the seedlings are raised. Before transplanting, use 4000-6000 kg of decomposed farmer’s organic fertilizer, and the transplanting distance is 25 cm. After transplanting, water the plant immediately after transplanting, and strengthen the management of fertilizer and water later.
One, choose land and seed
Choose Chinese cabbage with high temperature resistance, strong disease resistance, long-term neatness, fast holding, beautiful plant shape, and good quality for planting. Open field Chinese cabbage is suitable for planting in soil rich in organic matter, loose and fertile sandy loam or loamy land.
2. Planting time
Chinese cabbage is mainly planted in autumn. According to its variety and different planting time, it can be divided into early-maturing varieties. Seed in early and mid-August, mid-late maturing varieties are sown from late August to early September, and late-maturing varieties should be sown in late August. .
Three, sowing and transplanting
1. Use fermented human dung, farm animal manure, chicken manure and other organic fertilizers as base fertilizer for seedlings, sowing to avoid high temperature weather, otherwise it is unfavorable for seedling emergence. It is most suitable to choose to plant 3-5 days after the beginning of autumn. 4 per hole -5 seeds, covered with 1 cm soil, covered with film after proper watering.
2. Chinese cabbage seedlings can be transplanted 30 days after the seedlings are grown. Before transplanting, apply plantar fertilizer. 4000-6000 kilograms of decomposed human manure, pig manure, cattle and sheep manure, chicken manure, cake manure and fire manure can be used per mu. Or 50-60 kg of ternary compound fertilizer and 20-30 kg of ammonium sulfate.
3. Before transplanting, a mixed solution of imidacloprid and carbendazim should be used to control vegetable aphids and cabbage caterpillars. The transplanting distance is about 25 cm. After transplanting, water should be used for planting immediately. If there is a dry weather after transplanting, you should Water once every 2-3 days to improve the survival rate of seedlings.
Four, fertilizer and water management
After the Chinese cabbage is transplanted and planted, use thin human feces and urine combined with watering, topdressing seedling fertilizer, topdressing once every 3-5 days. At the same time, we must pay attention to the cultivation of vegetable fields to loosen the soil to promote rooting. During the pilling period, use 25-30 kilograms of ternary compound fertilizer per acre. After evenly spreading, the soil is cultivated and loosened, the fertilizer is buried in the soil layer, and an appropriate amount of water is poured to keep the soil moist.
Five, pest control
1. Use Buprofezin, Deltamethrin, Imidacloprid and other chemicals to control aphids and Pieris rapae.
2. Before and after the pilling period of Chinese cabbage, use broad-spectrum fungicides such as downy mildew, hymexazol and thiram to prevent gray mold, downy mildew, heart disease, etc. and diseases caused by element deficiency.
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