当前,红富士苹果生产优质大果已成为适应市场发展,提高经济效益的必然趋势。近几年,我们从疏果角度进行了调查总结。1　看外观预测果实大小　　经近几年的观察证实,果顶萼部突出,有棱的果实能发育成大型果,萼部浅平,无棱的果实则只能发育成小型果。果形长的、果柄粗长的、梗凹? At present, Red Fuji apples produce high-quality large fruit has become an inevitable trend to adapt to market development, improve economic efficiency. In recent years, we conducted a survey from the perspective of thinning. 1 to see the appearance of the forecast fruit size After several years of observation confirmed that the top of the apical prominenteal fruit, ribbed fruit can develop into large fruit, calyx shallow flat, non-ribbed fruit can only develop into small fruit. Fruit-shaped long, stalk coarse, Terrier concave?