生产套袋红富士与不套袋相比,果实生理病害明显增加,尤其是果实缺钙。1995年乳山市生产的400万个套袋红富士苹果,苦痘病占3～5％,这部分苹果基本失去了商品价值。而不套袋红富士苹果基本不存在苦痘病。这一现象在同一株树中表现非常突出。同时,在雨水较多的年份,纸袋内湿度高,弱树果诱发生较不套袋重。部分园片缺钾、缺硼等也严重影响了套袋富士苹果 Bagging Red Fuji production and bagging compared to the obvious increase in fruit physiological diseases, especially fruit calcium deficiency. In 1995, Rushan produced 4 million bags of red Fuji apples, bitter pox accounted for 3 to 5%, this part of the apple basically lost the value of the commodity. Without bagging Fuji apple basic absence of bitter pit disease. This phenomenon is very prominent in the same tree. At the same time, in rainy years, the humidity in the paper bag is higher than that in the weak tree bagging. Part of the park potassium deficiency, boron deficiency, but also seriously affected bagging Fuji apple