1. Apply basal fertilizer in autumn. After the soil is fully moistened after the rain, apply basal fertilizer. Open parallel trenches at the drip lines on both sides of the tree. Apply organic fertilizer or bio-organic fertilizer 3~5 kg, and cover the soil layer 5~10 cm .
2. Plastic pruning should adopt the natural evacuation layered tree type, and the pruning principle is to pay equal attention to evacuation. For overlapping, juxtaposed, crossed, and competing branches, choose the poorer ones to remove them, and cut off diseased and pest branches, dead branches, and weak fruiting branches. After pruning, use the callus antiseptic film to protect the growth of wound healing tissue, prevent soil and rain pollution, antifreeze, and prevent dryness of the wound, so as to reduce nutrient consumption and improve flower quality and fruit setting rate.
3. Pest control spray once in autumn with pesticides for preventing and curing diseases, combined with foliar fertilizer and flower promotion. During the dormant period of fallen leaves, spray the tree-protector at the bottom to completely remove the source of overwintering pests.
Fourth, prevent premature leaf fall. While doing a good job in pest control, proper irrigation should be done during drought, and the leaves should be sprayed with a new high-fat film to prevent leaf virus infection and premature leaf shedding, which will affect normal fruit bearing and quality improvement next year.
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