By way of analysing the structural characteristics of root tip , this paper clarifies that the root hair zone is the main position in absor bing mineral nutritions , and the absorption way is divided into apoplast and symplast channel because of the existence of the casparian strip in the root tip .

本文通过分析根尖的结构特点，阐明了根毛区是矿质养分吸收的主要部位，其吸收途径因根尖凯氏带的存在而分为质外体途径和共贡体途径。