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苹果套袋技术在国外已有50余年历史,在我国建国初期就有应用。90年代初,为生产出口红富士苹果,各地进行了小面积套袋。近几年,为提高果品质量,苹果套袋技术已在全国大面积推广,1999年,仅烟台市栖霞市套袋即达18亿个。目前,苹果套袋已成为生产高档果品的重要措施。 苹果套袋后,由于套袋果减少了接触各种杀菌、杀虫剂的次数和时间,因而果实内外农药残留量少,但在套袋前,必须喷施3次以上
Apple bagging technology in foreign countries for more than 50 years of history, there are applications in the early days of our founding. The early 90s, for the production of export Fuji apples, all over a small area bagging. In recent years, in order to improve the quality of fruit, apple bagging technology has been widely promoted throughout the country. In 1999, only 1.8 billion bags were bagged in Qixia City of Yantai City alone. At present, apple bagging has become an important measure to produce high-grade fruits. Apple bagging, bagging fruit due to reduce exposure to a variety of bactericidal, insecticide the number and time, and therefore fruit and vegetable pesticide residues less, but before bagging, must be sprayed more than 3 times