大樱桃上市早,果大,色艳味甜,投入少,价值高。但幼树期长势旺,结果晚,产量低。我所于1990～1992年进行了大樱桃施用多效唑试验,收到了明显的控长势促早果的效果。选择2～3年生的红灯大樱桃品种,发芽前后,在树冠外围的树盘,开10厘米深的环状沟,将多效唑水液均匀浇在沟内并覆土。结果表明,每株树施用多效唑2～3.3克效果 Early listing of large cherry, fruit big, bright color sweet, less investment, high value. However, young trees grow vigorously with late results and low yields. In 1990 ~ 1992, we conducted a trial of paclobutrazol in big cherry and received the obvious effect of controlling growth and promoting early fruit. Choose 2 to 3 years old red light cherry varieties before and after germination, in the tree crown periphery of the tree plate, open 10 cm deep annular groove, the paclobutrazol water evenly poured in the ditch and soil cover. The results showed that each tree was treated with paclobutrazol 2 ~ 3.3 g effect