春天新栽的果树,到3～4月还不发芽,既不皱皮,也不干梢,看来并没有死,这种现象叫“闷芽”。造成“闷芽”的原因有几个。①苗木移栽时伤根过多,尤其是须根太少,定植后吸收水分养分,造成地上地下部生理失调。②移栽过深,由于深层土中氧气少,不利根系生长与愈合,影响地上部芽的活动 Spring planted fruit trees, to 3 to 4 months without germination, neither wrinkled nor dry tip, it seems not dead, a phenomenon called “boring buds.” There are several reasons for the “mutilation”. ① transplanted seedlings wounds too much, especially the fibrous roots too few, after planting moisture absorption nutrients, resulting in the ground above the ground physiological disorders. ② Transplanting too deep, due to the deep soil oxygen less adverse root growth and healing, affecting the activity of shoots above the ground