Peach trees are the key period of nutrient accumulation and flower bud differentiation after fruit picking and before falling into autumn leaves. Management will directly affect the overwintering of peach trees and the results of the coming year. The following four key points should be mastered:
First, the spraying control "returning pods" After the peach trees are harvested, the winged locusts and red spiders in the surrounding vegetable gardens and corn fields will be returned to the peach trees for mating and spawning. The Chengyu and Ruoqiang are clustered on the back of the peach leaves. Suck the juice, make the leaves yellow and curl, seriously affect the growth of peach. Therefore, after harvesting fruit, insecticide should be sprayed by stages, and 5% carbendazim 800 times solution or 5% Kedandan WP 50 times solution or 40% Dimethoate 500 times solution can be sprayed.
Second, scientific fertilization strong tree
After harvesting fruit, we combine fertilization and weeding in orchards. For peach trees with large fruit trees and nutrient consumption, they should be applied early and reused. Generally, 30 kg-40 kg of urine or manure, 0.3 kg of urea, or 0.5 kg of ammonium bicarbonate should be applied to each plant. Or radial groove application.
Third, pruning pruning promote balanced peach branches grow multiple times a year, easy to make canopy closure, poor ventilation and light transmission, affect flower bud formation. Therefore, for the cross-branch branches, overlapping branches, branches and branches, thin and weak branches and crowded branches of the leggy branches should be removed. The bald area can be cut, promote new branches and occupy space.
Fourth, clean garden disinfection and prevention of pruning combined with pruning Taoyuan, the ground branches, leaves, fruit and weeds completely removed, away from Taoyuan burned. Ground lime (50 kg - 60 kg per acre) is sterilized and sterilized. A 1 Baume degree lime sulfur agent can also be used to spray the trunk and main branch 500-800 times.
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