In January, the temperature is low, 100 kg of plant ash can be applied per acre leaf surface, and a new high-fat film is sprayed to form a layer of polymer membrane to enhance cold resistance and cold resistance of rapeseed. Too high density of a kind of seedling field block to remove old yellow leaves, to improve the ventilation and light transmission capacity of the field, reduce the incidence of disease. Weeds with severe weeds and unsealed fields are subject to a cultivator for weeding and cultivating soil to reduce weed damage and enhance resistance to rolling. After freezing damage to rape at higher altitudes, timely removal of damaged moss leaves, supplement of quick-release fertilizer, and spraying of photosynthetic nutrient film fertilizer can help plants absorb large amounts of light, light, light, conventional fertilizer, and nutrients for plant growth. Develop to the limit. Apply once a year to benefit. Promote the development of the base part of the branch to compensate for the loss of production. It is necessary to strengthen monitoring and forecasting of pests, diseases such as downy mildew, sclerotinia, and aphids, and promptly use the new high-fat membrane and general tree protection for prevention.
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