摘要
磷素供应是限制作物产量的重要因子之一,作物对磷肥当季利用率较低,其吸收的磷大部分来源于土壤,从而作物对土壤磷的高效利用成为关注热点问题,本文综述了国内外关于磷肥施入土壤后形态转化及其生物有效性,提高作物对土壤磷素吸收利用机制,解磷微生物对土壤无效磷转化机制等方面研究进展,以期为作物对土壤磷素高效利用进一步研究提供参考。
Soil phosphorus ( P) supply capacity is one of important limiting factors for crops yield.Crop P uptake mainly derives from soil due to the low P fertilizer use efficiency in the season ,therefore,the issue about the efficient utilization of soil P by crops has be-come the research hotspot.The paper summarized the P form transform and bioavailability ,the mechanism of the absorption and utiliza-tion of soil P and the transform mechanism of soil unavailable P under effect of phosphate -solubilizing microorganisms after P fertilizer was applied based on the latest research achievements from all over the world.The objective of this paper is to provide the reference for the further study on the efficient utilization of soil P in the future.
出处
《土壤与作物》
2013年第4期164-172,共9页
Soils and Crops
基金
中国科学院黑土区农业生态重点实验室开放基金项目
国家自然科学基金青年基金(41301312)
关键词
磷肥
土壤磷形态
作物根形态
根系分泌物
解磷微生物
P fertilizer
P forms
root morphology
root exudates
Phosphate-solubilizing microorganism
