First, mustard seeding seedlings 1, sowing time: around the white dew 2. Selection of nursery land: the land with high dryness and fertile soil, 150 kg of human excrement and 5 kg of superphosphate as the base fertilizer, first ploughing and sun drying, putting straw on the soil to burn the soil, then Gray together, finely made the car. 3. Seeding rate: 1 seed is planted per plot, and 2 mu of land is planted. Cover the back cover with 0.5 cm of fine soil. 4, Miao Miao, Ding Miao: When the first piece of hairy leaves appeared in the seedlings, the first seedling was carried out, and the seedlings with fast growth, large leaves and high plant height were removed. The second time the seedlings are to 2 leaves, and finally keep the seedlings 5 ​​cm square to avoid crowding. Colonization to 5-6 pieces of hairy leaves. If the growth period is not good during the growth period, the thinly decomposed pig manure can be applied with a little urea. Second, field management 1. Soil-based application of base fertilizer: 2000 kg of manure and manure per mu, 500 kg of herb ash, 40 kg of low-nitrogen, high-phosphorus and high-potassium compound fertilizer. 2, planting density: deep ditch high car, planting about 5,000 acres per mu. 3, cultivating and weeding: before the closure, loose the topsoil, eliminate weeds, soil ventilation, pay attention to soil do not pile the head. 4, top dressing: the growth of normal is not topdressing, especially before the beginning of spring, not too much fertilizer. The general principle is: the light application in the early stage, the re-application in the middle stage, and the application of the seedlings in the later stage. Third, pest control 1. Seedling stage: "Virus A" plus "Lego" is sprayed 2-3 times to treat yellow dwarf disease, and to treat armor and aphids. 2, pests: Dimethoate, trichlorfon, lesbian, dichlorvos, phoxim, mites and other optional spray. Mehta, snails, snails, snails. 3. Diseases: Soft rot: Daisen ammonium, agricultural streptomycin water 2-3 times. Downy mildew: chlorothalonil, anti-virus cockroach, baidefu, metalaxyl manganese zinc spray 2-3 times. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Kid'S Camera,Kids Rechargeable Digital Camera,Kids Camera Waterproof,Children Camera Shenzhen Zuomi Technology Co., Ltd. , https://www.nbbkvis.com