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1 园地选择 选西坡、北坡中下部开阔地带 ,冷空气不易沉积 ,日夜温差较小 ,冻害发生较轻的地方。尽量避免在低洼地、山窝和海拔较高的东、南坡地。2 培养防冻树冠 同一株成年树 ,通常外围受冻较重 ,内膛和下层枝叶受冻较轻。因此 ,在栽培管理上 ,通过修剪把树冠培养成分枝?
1 choose to choose the western slope of the garden, the northern slope of the open area, the cold air is not easy to deposit, the temperature difference between day and night is smaller, less damage occurred in the cold damage. Try to avoid in the low-lying, nest and elevation higher east and south slopes. 2 Cultivation of antifreeze crown with the same adult tree, the outer periphery of the heavier frozen, the lower part of the bore and the lower cold frost. Therefore, in the cultivation and management, the pruning can be cultured into branches?