引言磷在土壤中的移动是有限的,以往许多肥料品种和施用方法都在于增加其移动性。随滴灌技术的日益普及,将促进水溶性磷通过管道施用技术的研究。本文研究了过磷酸钙和石灰施用方法与施用量对滴灌口附近磷、钙、铁、铝和锰分布的影响,对应用滴灌的多年生植物中寻求一个增加磷有效性和吸收性的简便方法。 INTRODUCTION The movement of phosphorus in soils is limited, and in the past many varieties of fertilizers and methods of application all increased their mobility. With the increasing popularity of drip irrigation technology, it will promote the research of water-soluble phosphorus through pipelines. In this paper, the effects of application methods and application amount of SSP and lime on the distribution of phosphorus, calcium, iron, aluminum and manganese near the drip irrigation outlet were studied. A simple and convenient method to increase the availability and absorptivity of phosphorus in perennial drip irrigation plants was studied.