After the fruit is harvested, many fruit growers have looser management of the fruit trees and nutrition in the pear tree cannot keep up, resulting in a decrease in the output of pear trees in the coming year. Shizong County in the pear tree harvest, timely nutrition and maintenance, maintenance of the tree, the fourth implementation of the autumn pear management. I. Implement root fattening The purpose of fertilization is to restore the tree vigor, protect the leaves, improve the quality of flower buds, accumulate nutrients for flowering results in the coming year, and increase unit yield and fruit quality. After fruit harvesting, the trees are fertilized for the situation of tree vigor. For trees with multiple trees and weak trees, the fruit fertilizer is applied once in a timely manner, and the farmyard manure is mainly decomposed, and an appropriate amount of three-element compound fertilizer is used. The amount of basal fertilizer is applied; it is applied in the amount of 1 jin of fruit and 1 jin of fertilizer, and the organic fertilizer is mainly delayed, and a small amount of quick-effect fertilizer can be added. Second, implement the autumn moderate trim After the fruit is harvested, take a topping on the leggy branches and remove the dense shoots. It is beneficial to concentrate nutrients to promote the growth of fruiting branches, promote the development and maturity of flower buds, and improve the ventilation and light transmission of orchards. After the pruning, the wound should be treated in time, and the "wound and anti-corrosion film" should be applied to protect the wound from healing. Third, implement the autumn pest control 1, after the harvest in autumn to remove the debris, fallen leaves, rotten fruit and weeds around the orchard, and concentrated or burned. To prevent germs and insects from overwintering in litter and weeds and become the source of diseases and insects in the coming year. 2, pharmaceutical control. After the fruit is harvested, pests and diseases are controlled in time to protect the leaves and prevent early defoliation. The main diseases of pears in autumn include pear black spot disease and pear black spot disease. These two diseases mainly damage the leaves and directly affect the output of the following year. After harvesting the fruits, they can be sprayed and prevented in time, and carbendazim or Bordeaux mixture can be used." New high fat film "Prevention and treatment. The main pests: red and yellow spiders, scale insects. Red-yellow spiders, which mainly damage the leaves, severely affect photosynthesis and nutrient accumulation, and can be controlled by avermectin and zangke. Scale insects are mainly harmful to leaves and branches, fruit, fruit picking time with 2.5% simagantyl plus 40%, good labor force 1500 times liquid, "new high fat film" for prevention and treatment. Fourth, implement the deep garden After harvesting fruit in the autumn, the ploughing of the garden should be carried out in time to loosen the soil and enhance the permeability. In addition, it can also reduce pests and diseases. Through the deep fall of the orchard in autumn and winter, the pests hiding in the soil under the canopy of the tree can be turned out of the ground to allow the birds to feed or freeze. At the same time, the deep-turning can also bury the dead leaves on the ground and the pests hiding in the sub-algae underground. LED Waterproof fittings,waterproof bathroom light fitting,waterproof lamp holder,IP65 Waterproof Fittings Ningbo Wellway Optoelectronic Technology Co.,Ltd , https://www.wellwayopto.com