The relationship between mineralizable soil N and crop N uptake was studied under the condition of pot and field experoments respectively.
在盆栽和田间条件下，研究了作物吸氮与土壤可矿化氮的关系。
Comparative analysis of the n, p, K in the leaves, roots and shoots of the pot-planted walnuts showed that.
通过对盆栽核桃幼树叶片、根系和枝条的N、P、K含量和叶片中叶绿素含量的比较分析。
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