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1. Drainage and waterlogging Peach trees are more sensitive to moisture and show drought tolerance. If there is accumulation of water, the oxygen in the soil will be insufficient, the roots will be blocked from breathing, the tree vigor will be weak, and the severe one will die. The water must be drained in time. On the hillside, Taoyuan uses a contour line to dig drains. Flatland orchards generally dig a drainage ditch between every two rows of trees, connecting the ditch and draining the water out of Taoyuan. In case of short-term accumulation of water in the clay field, roots should be air-dried (after draining, clean up the soil under the trees and keep the main roots exposed for a few days and then bury them).
2. Prevention and control of diseases and insect pests The rainy season is hot and humid, and it is highly susceptible to diseases such as anthrax, brown rot, solid rot, and soft rot, especially when the fruit is nearly mature. Can be sprayed with 80% thiophanate-methyl wettable powder 1500 times, or 50% carbendazim wettable powder 600-800 times, and alternate medication. At the same time pay attention to the prevention and control of various pests, such as red spider, red neck beetle, leaf miner, leaf roller moth, white star beetle and so on.
To pay attention to the weather forecast, timely spraying, such as large-scale rainfall 24 hours after spraying, should immediately re-spray to ensure the effectiveness of spraying.
3, scientific fertilization fertilization flood season should be "a few meals," especially in the floodplain and hilly land. Top dressing should be applied with acupuncture or strip-shaped furrows, mainly with potash fertilizer, accounting for more than 40% of the total amount of fertilizer, with the appropriate mix of nitrogen and phosphate fertilizers. Can also be combined with spraying outside the root dressing, the concentration is generally 0.4% to 0.5% potassium dihydrogen phosphate, 0.5% to 1% superphosphate, 0.3% to 0.5% urea.
4. Reasonable pruning of early maturing varieties can be pruned after fruit picking, and the main branches, branches, branches, cross branches, overlapping branches, and drooping branches in the canopy are cut off to ensure that the shoots can see the light, which is conducive to flower bud differentiation. Peach trees with canopy closure are heavier, and must be evacuated before the fruit matures. The dense branches and leggy branches must be removed to allow the tree crowns to be airy and transparent, resisting the occurrence of diseases, and also conducive to coloring and maturation. However, it should not be trimmed too heavy to prevent the fruit from burning on a daily basis. Unsuccessful saplings. During the period of vigorous growth during the flood season, summer shears should be well developed to promote molding and shoot ripening.
5, the top of the main branch of the main branch is low and more open varieties, such as Okubo, after entering the full fruit period, due to more results, branches and fruit sagging, close to the ground, rainfall for a long time, affected by the ground water evaporation, fruit and Branches and leaves susceptible to diseases. Before the onset of flood season, the main branch should be lifted away from the ground to reduce the occurrence of diseases.
6, timely cultivating and weeding in the rainy season, high temperature and humidity, very suitable for weed growth, if not timely removal, it will lead to weeds, aggravate pests and diseases.
Peach tree management to be careful
August is the main flood season of our province (Henan). In the flood season, there are many times of rainfall and the precipitation intensity is strong, which is not conducive to the normal growth of peach trees and the improvement of fruit quality. Corresponding measures must be taken to minimize the losses.