开春后,柑桔类果树开始进入发春梢和现蕾期,这时正值春梢抽出和花器发育的关键时期。而此时南方柑桔产区寒潮频繁,阴雨天气多,对花蕾的生长造成不利影响,因此,应加强管理,确保花蕾发育正常,为高产奠定基础。1、整枝抹梢:进行春季修剪,疏剪密集枝,短截交叉枝,对郁闭树冠,疏除1～2个大侧枝,开天窗,使通风透光,同时,对密集春梢抹除部分,对旺长春梢摘心,使老叶与新叶比例接近1:1:5左右。2、增加土壤通气性:春分前后选择晴好天气对树盘进行中耕除草,以提高土壤通气性,也可每亩用“免深耕”土壤调理剂200克兑水60～100公斤,选择晴天进行地面喷施。可以由上而下逐步打破土壤板结,提高土壤通透性,增强土壤保水保肥能力,减轻夏季干旱危害,而且不伤根、不破坏土层,松土深度和持久性都好于中耕,特别适宜用于不好深耕的成年果同。3、追施肥料:对2月份已施用芽前肥的果园一般在花前不再土壤追肥,对没有追施芽前肥的果园,应在花蕾期及时对 After the spring, the citrus fruit trees began to enter the spring shoots and budding period, at a time when spring shoots out and flower development of the critical period. In the meantime, cold marshes occur frequently in the southern citrus producing areas with more rainy days, which adversely affect the growth of flower buds. Therefore, management should be strengthened to ensure the buds develop normally and lay the foundation for high yield. 1, pruning prickly heat: pruning in the spring, pruning shears dense branches, short cut cross branches, crowns canopy, sparse 1 to 2 large side branches, open the skylight, so that ventilation and light, at the same time, the dense spring shoot erase part , On the long spring shoot topping, so that the proportion of old leaves and new leaves close to 1: 1: 5 or so. 2, to increase soil aeration: spring before and after the selection of fine weather for cultivating weeds in the tree plate to enhance soil aeration, but also per mu with “deep plowing ” 200 grams of soil conditioner watered 60 ~ 100 kg, choose sunny Spray on the ground. Can gradually break down from top to bottom soil compaction, improve soil permeability, enhance soil water and fertilizer, reduce summer drought hazards, and do not hurt the root, does not destroy the soil, soil depth and durability are better than cultivator, especially Suitable for poor deep plowing of adult fruit. 3, topdressing fertilizer: In February the bud has been applied before the orchard fertilizer is no longer top soil fertilizers, buds without topdressing orchards should be bud timely and timely