In summers where there is a lot of rain and high temperatures, improper management of fruit trees can easily lead to legitimacy. Therefore, it is necessary to strengthen human regulation and control. The main tasks are as follows:
Combination of fertilization and pruning
Pay attention to fertilization, apply less or no nitrogen fertilizer. Phosphorus and Potassium Fertilizers should be topdressed for the trees with many results and weak growth, and potassium dihydrogen phosphate should be sprayed in the whole garden. Each tree should be sprayed with 300 parts of potassium dihydrogen phosphate and sprayed once every 15 days. -5 times.
Note the summer cut. Clean up the dense branches, weak branches and legged branches in time to pick up the heart in a timely manner so as to facilitate ventilation and light transmission. At the same time, strengthen the control of the results with less fruit, overgrown branches and compressed branches during winter cutting, and use girdling and ring cutting. method.
Attention to control. With little or no accelerator, use plant growth balance agents and retardants as appropriate.
Rational use of drugs to prevent pests
High temperature and rainy weather are conducive to the occurrence of a variety of pests and diseases, such as early defoliation on apple trees, ringworm disease, rot disease, gold moths, pear nets; black pear disease on pears, pear hibiscus; on peach trees Myzus persicae, Myzus persicae; downy mildew on vines, etc. Therefore, spraying in the rainy season is the key to ensure the fruit production and harvest of fruit trees. Therefore, it is necessary to use bactericidal pesticides with strong absorption or rain erosion resistance and quick-acting insecticides with strong knockdown. Combined weeding cultivator loose soil
In the rainy season, weeds grow rapidly. Not only do they compete with fruit trees to compete for water, they compete with fertilizers, and they are places where pests and diseases are hidden. In order to timely cultivator weeds, herbicides can also be used. In addition, after heavy rain, the surface of the building, soil moisture, oxygen is insufficient, is not conducive to root growth, often causing poor growth of fruit trees, and even cause a lot of fallen leaves, so with or without weeds, we must do a good job after the rain planning, this can Improve soil permeability and maintain soil moisture.
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