苹果套袋可改善果实外观品质 ,提高商品果率。但套纸袋后果实含糖量下降、风味偏淡、苦痘病发生率增加 ,果实内在品质降低。为提高套袋苹果的果实内在品质 ,我们进行了叶面喷施不同微肥、套袋前喷施钙制剂和摘叶、转果、铺反光膜试验。1 997～ 1 998年在昌乐县平原镇果园 ,对 6 Apple bagging can improve the appearance of fruit quality, improve commodity fruit rate. However, after the paper bag, the fruit sugar content decreased, the flavor is subdued, the incidence of bitter pit disease increased, and the internal quality of the fruit decreased. In order to improve the inner quality of bagged apple fruit, we carried out foliar application of different micronutrients, application of calcium preparation before bagging and leaf pick-off, fruit transfer and reflective film testing. 1 997-1988 Changle County, orchards in the town, to 6