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苹果幼树抽条是一种生理干旱现象。2月中旬以后,地上部枝条水分蒸发转旺,而此时土壤尚未化冻,不能及时补充水分,导致枝条失水皱皮。2月20日至3月10日是苹果幼树抽条高峰期。预防措施如下: 1、苹果树根系第3次生长高峰到来之前(10月上旬)施基肥并灌水,及时中耕,促根系向纵深发展。实践证明,苹果幼树根系分布越深,根系越大,抽条越轻或不抽条。
Apple sapling is a physiological drought phenomenon. After mid-February, the branches of the aboveground water evaporates and flourishes, but at this time the soil has not yet been frozen and can not replenish the water in time, resulting in the rotting of the branches. February 20 to March 10 is the peak of young apple tree sprout. Preventive measures are as follows: 1, apple tree roots before the third peak growth (early October) base fertilizer and irrigation, timely cultivation, to promote root development in depth. Practice has proved that the deeper roots of apple tree distribution, the greater the root system, the more light or non-drawn stripe.