密植是获得单位面积早期丰产的基础,但密植存在着树体控制问题,控制不当则会出现植株之间争光、树冠内膛遮荫,结果不良和管理不便等情况.澳大利亚维多利亚塔土拉(Tatura)灌溉研究所的查默斯(Chalmers D.J.)等人,依据植物地上部的营养生长速度或生长势直接与根的生长速度有关,而根系的生长又受种种土壤因子的影响, Close planting is the basis for obtaining early yield per unit area, but dense planting has the problem of tree control, and improper control may lead to the problem of light between plants, shading of tree crown boreholes, poor results and inconvenient management, etc. Tatura, Victoria, Australia ) Chalmers DJ and others at the Institute of Irrigation are directly related to the growth rate of the root according to vegetative growth or growth potential in the shoots of the plant and the growth of the root system is influenced by various soil factors,