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1990～1992年对寿光县四处果园的三年生绿光、红星苹果幼树,在不同时期进行土壤施用和叶面喷施多效唑,对于控制营养生长,提早开花结果,提高结果产量,收到了显著效果。1992年累计推广应用达4.9万亩,增产苹果3495万公斤,增加经济效益5022万元。绿光品种每株施用9～11克,新梢长度为对照的80％,红星品种每株施用3～9克,新消长度各处理间无明显差异,分别占对照
From 1990 to 1992, the three-year green and Red Star apple young trees in four orchards of Shouguang County were used for soil application and foliar application of paclobutrazol at different periods. The control effect on vegetative growth, early flowering and fruit yield was achieved . In 1992 a total of 4.9 million mu of popularization and application, an increase of 34.95 million kilograms of apples, an increase of economic benefits 50.22 million yuan. Green varieties used 9 ~ 11 grams per plant, shoot length of 80% of the control, red star varieties per plant application of 3 to 9 grams, the new length of each treatment was no significant difference, respectively, control