苹果幼树堆土防寒使不得防寒是保证苹果幼树安全越冬的一项重要措施，如应用得当可取得良好效果，否则不但起不到防寒作用，还会引起幼树大量抽条。如抚宁县新立庄村，１９９４年春定植苹果半成苗２２００株，株行距３ｍ×４ｍ，共２．０６ｈｍ２，经过加强管理，当年生长... Apple seedlings piled soil cold so that no cold is to ensure the safety of young apple trees overwintering an important measure, such as the application can get good results properly, otherwise not only fail to cold effect, but also cause a large number of saplings sprout. For example, Xinningzhuang Village in Funing County, with 2200 semi-finished apples of apple-planting in the spring of 1994, has a row spacing of 3m × 4m and a total of 2.06hm2. After intensive management, the growth ...