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为选择生产上适宜的梨果套袋 ,1999年进行了套袋效果比较试验。1 材料与方法试验在桐庐县桐庐镇大丰村的朱世林果园内进行 ,供试品种为生长健壮的 6年生黄花梨 ,株行距 4 m× 4 m,树冠大小、树势基本一致。供试纸袋有 :台湾产的外黄内黑双层袋、外黄内白双层袋、黄色单层袋 ,?
In order to choose the appropriate production of pear bagging, bagging effect in 1999 compared the test. MATERIALS AND METHODS The experiment was conducted in the Zhu Shilin Orchard of Dafeng Village, Tonglu Town, Tonglu County. The tested varieties were 6-year-old Huanghua pear with strong and healthy growth. The row spacing was 4 m × 4 m. The crown size and tree vigor were basically the same. Test paper bags are: Taiwan’s outer yellow outer black double bag, outer yellow double white bag, yellow single bag,?