Fertilization Management of Direct seeding rape before overwintering

Applying sufficient base fertilizer and topdressing seedling fertilizer is an important part of rape management before winter. Generally, when direct seeding rape after rice is sown, 1000 kg of rotten pig manure or 50 kg of compound fertilizer is applied per mu, while interplanting rape in paddy field is applied immediately after rice harvest. Live seeding rape topdressing. Generally, the thin manure water was applied 1 or 2 times after the full seedling, and the strong seedling fertilizer was applied once at the 3 leaf stage. The amount of topdressing can be determined according to the spring character and growth of rape varieties. Generally, the amount of topdressing seedling fertilizer is 5 to 7.5 kg urea per hectare.