The key to high-yield cultivation of rapeseed by direct seeding is to do a good job of seedling management.
1. Make up for deficiencies and ensure "three seedlings". Rape seedlings should be suitable after the emergence of seedlings, Dingmiao in the 2-leaf stage, the transfer of thinning, to stay weak and strong, to stay small, to stay pure and mixed, to achieve uniform seedlings, seedlings, Miao Zhuang. According to the sowing time, 35-45 strong seedlings per square meter are reserved, and the remaining 23,000-3 million strains are reserved for laying the basis for high yield.
2. Early application of Miaofei, control weeds. No-tillage, direct sowing of rape seedlings, late emergence, vegetative growth time is short, weak seedlings potential, seedlings, seedlings after 2-3 leaf stage of rape seedlings to be timely application of decomposed human urine and other organic fertilizer, seedling growth. At the end of December, Mushi applied 1,000 kilograms of human urine with 50 kg of urea or 15-20 kg of urea. The combination of water drainage and clean ditch, enhance the ability to keep warm and prevent freezing, to achieve the requirements of the seedlings of spring and spring. In case of more weeds, spray 12.5 per acre with a 40 ml caplet to 50 kg of water to spray a fine mist, completely weed the seedlings.
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