The mechanism of nutrient uptake by soybean roots is only part of a more general problem on the subject involving all plant species.
大豆根系对养分的吸收机制只是所有作物吸收养分的最一般问题的一部分。
The whole work is divided to three parts:the first part is to study the information of mycorrhizal associations on the root of different plant species.
本文主要分为三部分：第一部分主要研究了人工林中主要幼龄树种根系上的菌根情况。
The whole work is divided to three parts:the first part is to study the information of mycorrhizal associations on the root of different plant species.
本文主要分为三部分：第一部分主要研究了人工林中主要幼龄树种根系上的菌根情况。
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