碳磷比对土壤磷素有效性的影响研究进展

Research Progress in the Effect of C/P Ratio on Soil Phosphorus Availability

土壤磷素有效性受诸多因素的影响,磷素低效利用率不仅严重制约着农业生产的发展,而且使得磷没有得到充分利用、严重浪费磷资源。研究影响磷素有效性的因素,对今后提高磷素在农业中利用率具有重要意义。本文结合国内外已有成果和最新的研究进展,从影响磷素有效性的因素(土壤pH、水分、微量元素活化剂、有机质等)综述了磷素有效性研究现状,并提出了目前在土壤磷素有效性研究中存在的一些问题和今后研究的热点。

The availability of soil phosphorus is affected by many factors. The low efficiency utilization of phosphorus not only seriously restricts the development of agricultural production, but also makes phosphorus not fully utilized and wastes phosphorus resources seriously. It is of great significance to study the factors affecting the availability of phosphorus for improving the utilization rate of phosphorus in agriculture in the future. Based on the achievements and the latest research progress at home and abroad, the research status of phosphorus availability was summarized from the influencing factors (soil pH, water, trace element activator, organic matter, etc.), and some problems existing in the study of soil phosphorus availability were pointed out.