苹果树根系的生长发育状况和生理活性是影响树势、果实产量和品质的重要因素。随着树龄的增加,根系逐渐老化,活性也随之衰退,同时导致地上部各器官相应衰老。因此,对苹果树采取局部断根、更新根系,可以达到恢复树势、提高 The growth and development status and physiological activity of apple tree roots are important factors that affect the vigor of tree and the yield and quality of fruits. As the tree age increases, the root system gradually ages and the activity also declines, leading to corresponding aging of various organs in the shoots. Therefore, the apple tree to take a partial cut root, update the root system, can restore the tree vigor, improve