生长过旺的果树,往往出现低产或“空怀”,克服“空怀”的方法是: 1.断根 沿树冠垂直线下挖一条60～70厘米深、35～40厘米宽的环沟,切断下层的粗根,露晒5～7天,然后把腐熟的有机肥与表土混合施下,盖土,同时对全园中耕翻土20～25厘米深,切断表土中的吸收根。通过断根,减弱根系对水分和养分的吸收和输送,提高树体液汁浓度,有利于地上部分营养物质的积累,促进花芽分化。 2.修剪 “空怀”果树,大都生长过旺,容易抽出晚 Growing fruit trees, often low yield or “empty pregnant” to overcome the “empty pregnant” method is: 1. Root cut vertical crown along the crown to dig a 60 to 70 cm deep, 35 to 40 cm wide ring groove, cut off the lower Coarse root, exposed to sun 5 to 7 days, and then mixed with topsoil decomposed organic fertilizer applied to cover the soil, while the entire garden cultivating soil 20 ~ 25 cm deep, cut off the absorption of roots in the topsoil. Through the root, weakened the root system of water and nutrient absorption and transport, increase the concentration of tree juice, is conducive to the accumulation of aboveground nutrients, and promote flower bud differentiation. 2. Trim “empty pregnant” fruit trees, most growth over Wang, easy to pull out late