First, fertilizer and water management
1. Foliar Spraying Fertilizer: Spray 0.3-0.5% potassium dihydrogen phosphate as soon as possible after fruit harvest to increase nutrient accumulation in the tree, promote leaf assimilation and shoot enrichment, and increase tree vigor so as to facilitate overwintering.
2. Shi Jifei: She applied to basal fertilizer at the beginning of October. In the early fruit stage, 20-30 kg of rotten farmyard manure is applied to each plant; 30-50 kilograms of each plant is applied in the full fruit period, accompanied by 0.5-1.0 kg of urea, and compound fertilizer (N:P:K = 15:12:15) ) 1.5 kg. The method of radial groove application is applied. The starting point is at 1/2 of the tree plate. The outer end is aligned with the outer edge of the canopy. Dig 7-9 radial grooves, 30-40 cm deep and 40 cm wide. Mix well. Fertilizer is sprinkled into the ditch and then covered with a layer of soil.
3. Irrigation: timely filling of the first water after fruit picking, and the amount of irrigation water depends on soil moisture, so that the soil moisture is most conducive to the growth and development of plum trees. When irrigation, open a 20-25 cm deep ditch in the Li Yuan line. The ditch should be perpendicular to the water channel. Fill the ditch immediately after filling.
Second, soil tillage
Generally in autumn early autumn combined with autumn basal fertilizer soil ploughing, cultivating depth of 20-40 cm, the wound easily healed, is conducive to the absorption and synthesis of nutrients, increase tree accumulation, is conducive to the growth and development of the following year.
Third, shaping pruning
After the fruit is harvested, it is combined with fresh trees to dig up the branches. Should pay attention to the selection of a strong position to maintain a strong branch, remove thin and weak, pests, dense, drooping and guilty at the end of thick branches, and to leave the branches to be topping.
IV. Pest control
Spray 50% of carbendazim 800-1000 times, or thiophanate-methyl 800-1000 times, or 80% of mancozeb 800-1000 times, or 50% of TYTB 800 Double liquid; control Hawthorn red spider, 40% dicofol EC can be used 1500-2000 times liquid; control and use of 2.5% of enemy can kill 3000 times liquid, or 50% of phoxim 800 times solution +40% Omethoate 800 times, or 20% cypermethrin 3000 times.
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