After the chestnuts are harvested, the following management should be done in a timely manner: Timely spraying of foliar fertilizer After timely harvesting, the foliar fertilizer should be sprayed once in a timely manner to enhance the vitality of the leaves so that it can continue photosynthesis and absorb carbides. Because the next period of time is the nutrient accumulation period of the chestnut tree, the accumulated nutrients can be used for the next year. Foliar fertilizers are required to be uniformly applied to the surface and back of the blade. It should be sprayed in the morning and in the evening. Grasp the cleanup of chestnut garden first, then use the bamboo pole to shoot down the empty crickets on the branch, and then clean it up to pile up with the weeds. Reduce the wintering sites of pests and allow them to rot and decompose into fertilizers. The deep-turning and soil-changing in the whole garden generally combines with Shiji Fei. The depth is generally 20--30 cm. The depth of the crown should be deep and the trunk should be shallow. When the soil is turned over, a small part of the root system is purposely damaged so that new roots can be developed and the absorption of fertilizer and water can be enhanced. This is called the renewal of the underground part. Turning over the garden can loosen the soil and reduce the wintering sites for pests. Pay attention to the maintenance of the escalation of the land terrace in order to conserve water and fertilizer. It is an important measure in the comprehensive management of chestnut gardens to apply basal fertilizers, which is an effective way to guarantee the development and growth of chestnut trees and obtain high yields. Farmyard fertilizers have a good effect. After the farmyard fertilizer is applied to the soil, it needs to be decomposed by rot before it can be absorbed by the roots. Therefore, the base fertilizer must be applied early before it can exert its fertilizer effect. It is generally better to apply after the fall leaves. The basal fertilization method generally uses a strip groove, an annular groove and a radiation groove around the crown tip. After digging up the ditch, apply the fertilizer into the ditch and cover it with soil to maintain the fertilizer effect. Do a good job in winter pruning and plastic surgery In the pruning and shaping process, we must first cut all the pests and branches, burn them together and reduce the source of insects. The pruning of the result tree should be based on tree conditions, sparse shearing, sparse shearing and short cutting. The number and the strength of the resulting mother tree on the chestnut tree are important signs that determine the output in the coming year. The main purpose of pruning is to promote the internal and external, upper and lower parts of the chestnut tree to be able to draw a strong result of the mother branch, make full use of space, and increase the result area as much as possible. This should prevent the tip of the crown from being too dense and overly high, and ensure good ventilation and light transmission of the inner canopy and good growth of the inner branch. We must eliminate all dense slender branches and male flower branches, save nutrients, cut a small number of branches, and cultivate strong and renewed branches, laying the foundation for the results of the next year. In addition, the tree trunks should be brushed white and stripped of old bark in the winter to reduce the wintering sites for pests. Adhesive Wound Dressing,Medical Small Wound-Care Plaster,Medical Waterproof Transfusion Wound Plaster,Medical Elastic Adhesive Aid-Band Surgimed Medical Supplies Co.,Ltd , https://www.surgimedcn.com