First, after autumn, the basal fertilizer is applied to the soil after the rain is wet, and the base fertilizer is chased after the rain. Parallel ridges are formed on both sides of the tree at the dripping line, and the organic fertilizer or bio-organic fertilizer of the plant source Linban is 3 to 5 pounds. 10 cm.
Second, plastic pruning should adopt natural evacuation and layered trees. The principle of pruning is to cut weights equally, requiring large branches and thin leaves to remain, no twigs to remain, no overlapping, staggered, and three-dimensional results. For overlapping, parallel, cross, and competition branches, choose the poor ones to be sparse, and cut the branches and branches of the pests, dead branches, and the weak and weak branches. Immediately after pruning, callus anti-corrosion film should be used to protect the wound healing tissue, prevent infection with rot fungus, prevent soil and rain pollution, prevent freezing, prevent chapped wounds, reduce nutrient consumption, and improve flower quality and fruit setting rate.
Third, pest control Hawthorn fruit trees in the fall, early winter susceptible to powdery mildew, aphids, ball scale scale insects, Lepidoptera larvae damage. To this end, spray insecticide treatment in the fall, combined with foliar fertilizer, promote flowers and so on. The deciduous dormant period sprays the general tree guard to thoroughly clear the overwintered disease and insect source.
Fourth, to prevent premature defoliation in the prevention and control of pests at the same time, the drought should be properly watered, and sprayed with new high fat film foliar, can prevent leaf virus infection, so that the foliage lush, photosynthetic product accumulation and enhanced directional transport capacity, Prevent the leaves from falling off prematurely, affecting the normal fruiting and quality improvement in the next year.
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