以陇东黄土高原区15年生乔化密植红富士苹果为试材,研究了间伐、提干、落头3种处理树体光合特性、花芽量、果实产量和品质的变化。结果表明,间伐、提干、落头3种处理均能提高红富士苹果树的光合效率、产量和果实品质,其中隔株间伐处理效果最好;行株距为4m×3m,盛果期干高100～110cm,落头高度230～280cm,每667m2枝量8.5万条是成龄乔砧红富士苹果比较理想的指标。 Taking 15-year-old Qiahuamu Fuji apples from Longdong Loess Plateau as experimental materials, this paper studied the changes of photosynthetic characteristics, flower buds, fruit yield and quality of the three treatments of thinning, lifting and dropping. The results showed that thinning, raising dry, falling head can improve the photosynthetic efficiency, yield and fruit quality of Red Fuji apple trees, of which the effect of thinning is the best; the row spacing is 4m × 3m, 100 ~ 110cm, height 230 ~ 280cm, each 667m2 branches 85,000 is the age of Joe anvil Red Fuji apple more ideal indicator.