The cultivating and weeding is generally carried out after transplanting live trees (live rapeseed with 4 to 5 true leaves), shallow cultivating, 3 to 5 cm deep, followed by cultivating and applying seedling fertilizer; the second time before the end of November Deep cultivating, ploughing 7 to 10 cm, it is best to combine the application of wax fertilizer, soil and roots, and protect against freezing. Classification operation, for early sowing, early planting, fertility, good growth of rapeseed deep ploughing, to cut part of the root system, control the growth of the aboveground; for late sowing, seedlings smaller rapeseed should be combined with topdressing to promote strong seedlings.
Re-application of wax fertilizer in the winter solstice to Xiaohan re-application of soil fertilizers such as soil dregs, manure, grass ash, soil and other fertilizers, can meet the needs of winter rapeseed vegetative growth and reproductive growth, but also for spring After the rapeseed is early, it provides nourishment. The wax fertilizer can also increase the soil temperature, keep warm and freeze, and has a greater effect on reducing the root damage of the seedling roots.
Timely drought resistance During the winter, the rapeseed plants are smaller, the roots are shallower, and the drought and resistance to mites are poor. At this time, if drought occurs, it should be timely to resist drought, in order to facilitate the adjustment of the field temperature difference, thereby reducing the freezing damage caused by cold waves and promoting the safe wintering of rapeseed.
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