培土 对于三四年生果树、由于树体比较高大可采用培土防寒的办法,即在迎风面距树干40厘米处(多在北侧),培一个高与宽均为60厘米、长150厘米的半圆形土埂,这样可在果树根系周围形成一个向阳背风的小气候,使树体附近地温增高,土壤解冻期提前,果树根系的吸水能力增强,防止果树出现生理干旱。 埋土 对匍匐生长的果树,均可采用这种办法。在 Cultivation of soil For three or four year-old fruit trees, trees can be used as a result of relatively high cold-proof soil, that is, the windward 40 cm away from the trunk (mostly in the north), training a height and width are 60 cm, 150 cm long half Circular soil 埂, which can form a sunny leeward microclimate around the root system of fruit trees, so that the ground temperature near the tree increased, the soil thaw period advance, the water absorption capacity of the fruit tree roots to prevent fruit trees from physiological drought. Buried on the prostrate growth of fruit trees, can use this approach. in