(1) Selection of rape varieties suitable for winter hair
Medium-maturing varieties are not very strict with regard to low temperature, and have a wide range of adaptability to temperature. These varieties grow faster at the seedling stage, are more likely to reach the winter level, are relatively stable, have strong cold resistance, and have strong growth potential in the spring. The yield is also high and it is a good variety of rape winter hair.
(2) Breeding strong seedlings for transplanting
Remaining seedbeds require a ratio of 1:5 for the seedbed area and Daejeon. There are drylands in the hilly areas. Arrangements can be made for sesame seeds, peanuts, and dry yellow soybean meal as seedbeds; fertilization for soil preparation, timely sowing, timely seedbed management, and time seedlings. Dingmiao to prevent seedlings tall. Seedlings also need to prevent and treat diseases and insect pests, especially locusts, which not only harm vegetable seedlings but also spread diseases, and should be promptly controlled by drugs.
(3) Other measures to promote high yield of winter rapeseed
Grab the early transplanting, reapply base fertilizer, seedling fertilizer, and reasonably dense planting. In planting methods, appropriately widen the row spacing, narrow the plant spacing, or adopt a wide and narrow row as well, which is conducive to ventilation and light transmission, and is beneficial to the growth and development of rapeseed. It also facilitates field management.
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