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苹果套袋在减少果实中农药残留量,提高果实外观品质等方面具有重要作用,是生产无公害果品的主要途径之一。目前陕西苹果年套袋量已达108亿只,其中纸袋58亿只、膜袋50亿只,而且每年套袋推广量还在成倍增加,套袋技术已被越来越多的果农所接受。为了引导生产者正确选择果袋,促进苹果套袋技术迅速推广,2002年笔者对双层纸袋、单层纸袋、膜袋作了比较试验,总结如下。1 材料与方法1.1 材料试验地点在陕西洛川县果树所试验
Apple bagging plays an important role in reducing the amount of pesticide residues in fruits and improving the appearance quality of fruits, which is one of the main ways to produce pollution-free fruits. At present, the apple bagging volume in Shaanxi Province has reached 10.8 billion sets, including 5.8 billion paper bags and 5 billion membrane bags, and the amount of bagging promotion is still doubled every year. The bagging technology has been accepted by more and more farmers . In order to guide the correct choice of fruit bag manufacturers, and promote the rapid popularization of apple bagging technology, in 2002 the author of the double paper bags, single paper bags, film bags made a comparative test, summarized as follows. 1 Materials and methods 1.1 Materials Test sites in Luochuan County, Shaanxi Province fruit trees tested