The atmospheric supply of nutrients is usually small relative to the supply of nutrients found in mineral soils . 来自大气的养分供应量，一般少于矿质土壤本身的养分供应量。
Leaves and twigs have high concentration of nutrients that, if left in the forest, revitalize the soil . 树叶和细枝具有更多的营养成分，若将它们留在森林，可使土壤恢复元气。
The store of nutrients in the soil which is available to plants is an important constraint upon plant productivity . 土壤中植物有效养分的储存对于植物生长量是一个重要的制约因素。
The vascular changes interfere with diffusion of nutrients from plasma into adjacent perivascular tissue and cells . 这些血管变化干扰了营养物质从血浆中向血管周围邻接的组织和细胞扩散。
There is a great contrast between nutrient cycles in natural vegetation and the nutrients involved in growing an arable crop . 天然生长的植物与人工栽培的作物在营养循环方面有很大的差异。
The current nutrient status of crops can now be determined through the systematic sampling of plants as appropriate times . 作物当时的营养状况，可在适当时期对植物的系统采样进行营养分析。
Fluoride treatment included both excised leaves cultured in nutrient solutions and leaves from plants fumigated with hf . 氟化物处理既包括培养在营养溶液中的切离叶片和HF熏气的植株上来的叶片。
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。
