树坑的深度和直径要在一米左右。土层厚、土质好的地块,坑可适当小些。挖穴时要把上下土层分别堆放,植树时,将腐熟的圈肥加适量过磷酸钙和上层土混合均匀,填在树坑底部,然后把树苗放在坑内先填一层土,再将树苗轻轻向上提动立直,利于根系舒展,做到 Depth and diameter of the tree pit to about one meter. Thick soil, good soil mass, pit may be smaller. Dug when the upper and lower soil layers should be piled, planting trees, the maturity of the circle fertilizer plus appropriate amount of superphosphate mixed with the upper soil, fill in the bottom of the pit, and then put the sapling in the pit first fill a layer of soil, and then saplings Gently lift the vertical upright, conducive to the root stretch, so