一、纸袋选择 1、自制果袋。选较厚、较硬的报纸裁成方形,将报纸糊成筒状,下端不糊,套在果穗上即可,规格40×26厘米。 2、购置果袋。纸袋的选择应据葡萄树体长势、生产目标、经济状况合理选择。 二、套袋的作用 1、提高果实品质。果实套袋后,可防止日晒、风吹、雨打、药害、病虫害及枝叶磨伤果面,使果实表皮细嫩、光洁、无污染,着色快而集中。套袋的比不套袋能提早上色、提早成熟7天,含糖量提高1％左右。 First, the choice of paper bags 1, homemade fruit bags. Select the thicker, harder newspaper cut square, the newspaper paste into a tube, the bottom is not paste, set in the ear can, specifications 40 × 26 cm. 2, buy fruit bags. Paper bag selection should be based on the growth of grape trees, production goals, a reasonable choice of economic conditions. Second, the role of bagging 1, improve fruit quality. Fruit bagging, to prevent the sun, wind, rain, injury, pests and branches and leaves damaged fruit surface, so that the skin epidermal tender, smooth, pollution-free, fast coloring and focus. Bagging than bagging can color early, 7 days early maturity, sugar content increased by about 1%.