1. Site preparation: Select a soil with thick, fertile and loose soil, finely plough, apply base fertilizer, and fill the bottom. Select full, pure and high-quality seeds, drying for 1-2 days, then dressing with new high-fat membrane (can be mixed with seed coating agent), repelling underground pests, isolate virus infection, and not affect the function of germination and ingestion. Breathing intensity, increase seed germination rate. Appropriately sowing as required.
2, field management: 1 after emergence and time seedlings, timely Dingmiao, Dingmiao spraying after the new high-fat membrane, can reduce the slow seedling period, so that seedlings quickly adapt to the new environment, and healthy growth. 2 Achieve sufficient water and fertilizer, NPK ratio and sensation should be reasonably matched, and spray the application of Huawang 3 on the beginning of the planting of branches, suppress the main shoots to grow wild, and promote flower bud differentiation. 3 Spraying strong head before flowering can strengthen the physiological function of rape, improve the quality of fertilization and grouting, increase the fruit setting rate, make the seed full, and increase the yield.
3. Insect pest control: Asparagus and leaf miners are likely to occur after flowering in winter rape, and they should be controlled with targeted high-fat lipid membrane as soon as possible according to plant protection requirements.