ordinary integral element是什么意思

用法例句

This paper deals with the content of nutrient elements (N、P、K、Ca、Mg、Na、Cl) in plant or-gans and the accumulated amount of nutrient elements in the stands of Taxodium ascenhns、Banbusalongiflora、Oryza sativa、Saccharum officinarum.

结果表明：6年生池杉林分、青秆竹林分均是叶的养分元素含量最大，树干的最小；其养分元素积累量分别为2689。