soil available phosphorus content 土壤有效磷含量
soil readily available phosphorus 土壤速效磷
Soil available phosphorus, to a large degree, determines the content and distribution of soil glomalin.
土壤速效磷在很大程度上决定土壤球囊霉素的含量和分布。
Soil total potassium content, soil available phosphorus, soil total potassium content and soil available potassium, Their variation is not obvious.
而土壤全磷、土壤全钾、土壤有效磷、土壤有效钾随着土壤深度的增加，其变化规律不明显。
The situation of soil available phosphorus and its change are analyzed and countermeasures are put forward so as to guide the agricultural production.
分析了土壤有效磷含量的现状及其变化原因，提出了施肥对策，以期指导农业生产。
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