植树深度要适当文／武玉才植树深度要适宜。植苗深了，氧气不足，土温较低，根呼吸不畅，吸收能力下降，导致根系腐烂；若果树栽得过深，易使接穗入土生根，导致种性退化，品质变劣，即使容易生二重根的树种，也生长不好。栽植过浅，苗根接近地表，易受干旱或风吹摇动，影... Depth of tree planting should be appropriate / martial arts tree planting depth should be appropriate. Seedling is deep, lack of oxygen, soil temperature is low, the root of poor breathing, decreased absorption, resulting in root decay; if the tree planted too deep, easy to make scion rooting, leading to degeneration, deterioration of quality, even easy to Health Double root tree species, but also poor growth. Planted shallow, seedling near the surface, susceptible to drought or wind shaking, shadow ...