After the harvest of peach fruit, the tree is relatively weak. At this time, the tree management should be strengthened to lay a good foundation for the next year's high yield. A few days ago, the reporter interviewed Han Mingyu, a professor at the College of Horticulture, Northwest Agriculture and Forestry University, and asked him to guide the fruit grower how to manage the peach harvest.
Fertilizer management After harvesting the peaches, timely dressing and foliar fertilizer application should be performed. Nitrogen fertilizers should be used as topdressing. Top dressings can be sprayed with 0.3% potassium dihydrogen phosphate every 15 days for a total of 2 or 3 injections. At the same time, the fruit grower should perform deep turning after fruit harvesting, combined with the base fertilizer, and the base fertilizer should be dominated by organic fertilizer, and the application amount should be 2 to 3 times of the output. In addition, be sure to seal frozen water before freezing. Peach trees are not tolerant, and short-term accumulation of water in Taoyuan will cause yellow leaves, fallen leaves, and even dead trees. Therefore, water should be excluded during flood season.
After trimming peach fruit harvest in autumn, the new shoots have a large amount of growth, strong ability to form secondary shoots, easily cause canopy closure, affect flower bud differentiation, and should be cut in autumn. For strong twigs or branches in the upper part of the canopy, they may be sprained and pressed down from the base after removing the strong shoots; for the competitive twigs, twisting can be used to control their growth and transform them into the result branches; overlapping branches, The cross-branches and the old weak branches must be promptly retracted; the dense branches, thin branches, and useless standing branches should be removed; for the standing branches with space reserved, they can be pressed down within the crown to ease their growth.
Immediately after fruit picking and pest control, 65% mancozeb 400 to 500 times liquid and 2.5% cypermethrin 2500 times were sprayed to control leaf diseases, leafminers and other pests, and other pests and diseases were promptly controlled.
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