Drainage and anti-staining pear trees need to be preset when they are built. The plain areas are generally drained by open channels, and the mountains are drained by contour lines. If there is no drainage open channel and the rainfall is very large, and water has been accumulated in the pear garden, it is necessary to immediately dig a drainage ditch to discharge the accumulated water.
The cultivating of cultivating loose soil is an effective way to reduce the soil moisture content, so it is necessary to cultivate after heavy rain to achieve the purpose of drying, loosening and promoting root absorption. The depth of cultivating is 20 cm; the number of ploughing depends on the soil quality and precipitation of the pear garden.
Properly topdressing the rainy season to properly supplement the quick-acting fertilizers such as nitrogen, phosphorus and potassium is beneficial to tree growth and fruit development, and promotes fruit quality and flower bud differentiation. However, if there is too much topdressing (especially the quick-acting nitrogen fertilizer), it will cause the new shoots to grow up, leading to problems such as canopy closure and fruit flavor.
Diseases and insects prevention and control of high humidity easily lead to the occurrence of diseases such as black spot disease, and it is necessary to spray drugs in time after the rain. Commonly used agents are methyl thiophanate, diniconazole, and Bordeaux mixture. The main types of insect pests are Tenebrio molitor, P. sinensis, etc. The type of the drug can be selected from imidacloprid, quercetin and cypermethrin.
In summer, the excessively trimmed leaf area causes insufficient light, which is not conducive to spraying, and is not conducive to the formation of flower buds next year. First of all, it is necessary to cut off the long branches or the dense new shoots on the back of the big branches, so that the whole branches and leaves are evenly illuminated. In order to prevent the sun from causing sunburn on the exposed center stem or main branch, it is appropriate to leave some new shoots to be topped at 15-20 cm to control its growth and promote flower bud formation.
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