Cultivation and management techniques for high quality and high yield of litchi

Site selection and planting: for high-yield cultivation of litchi, hills or slopes with open terrain, loose and fertile soil, deep soil layer and water source should be selected as ideal development and planting gardens. Litchi mycorrhiza is good for air, so we should loosen the soil, improve the soil, loosen and aerate in order to promote the development of root system. Soil fertilization is based on the principle of frequent application and light application. Spray the new high-fat membrane in time to shorten the slow seedling period and quickly adapt to the new environment. Adult tree management: high yield pruning of litchi is the key. The pruning principle should be light rather than heavy, mainly cutting off cross branches, over-dense branches, curved branches, weak twigs, and flower ears that do not let them bear fruit, so that nutrients can be effectively used to expand the crown. Apply the healing anti-corrosion film in time after pruning. Litchi fruit drop is serious in the process of fruit development. On the basis of strengthening fertilizer and water management and pest control and other comprehensive measures, spraying Zhuangguotiling can prevent flower and fruit drop, thicken fruit pedicel and increase nutrient transport. Prevention and protection of trees: the main diseases are litchi downy blight and charcoal disease. The main pests are litchi stem borer, litchi small gray butterfly, tortoise-backed longicorn beetle and so on. Spray targeted drugs to kill, at the same time, add new high-fat membrane to enhance the effective utilization of drugs. In order to prevent the wild growth of winter shoots in the period of flower bud differentiation, Huawang No. 2 was smeared to protect the tree and protect the tree safely through the winter.