Cultivation techniques of high quality and high yield of longan

1. Suitable areas: longan producing areas in Guangdong. The geographical and climatic conditions of cultivating longan in the west of Guangdong province are the most favorable. The annual accumulated temperature is high, especially in spring, the temperature recovers quickly, the light is sufficient, the fruit of cultivated longan is early ripening, the fruit is big, and the commodity is good. 2. Main points of cultivation techniques: (1) shaping and pruning of young longan trees. The pruning method of thinning branches and not cutting short branches is adopted in young trees. (2) retreating and pruning in densely planted longan tree garden. The earlier the retracted pruning and the shorter the retracted branches, the thicker the branches are, which is more beneficial to the flowering and fruiting next year, and the method of thinning and retraction is adopted. (3) pruning in autumn. Sparse backbone branches or thicker branches year by year to cultivate timely and effective autumn shoots. (4) controlling winter shoots and promoting flowers. Adjust the last shoot to mature at the end of November and the beginning of December. (5) promote the formation of flower spikes. Effective technical measures are adopted to ensure the timely germination and growth of flower buds and the normal growth and development of flower ears. (6) the technology of strong flower and fruit protection. Spraying "longan Fengguosu" and thinning flowers at flower bud stage can effectively control the amount of flowers and increase the rate of fruit setting.