植物营养与肥料学报2013，Vol.19Issue(1)：127-133,7.DOI:10.11674/zwyf.2013.0115
小麦蚕豆间作对红壤有效磷的影响及其与根际pH值的关系
Effects of wheat and fababean intercropping on available phosphorus of red soils and its relationship with rhizosphere soil pH
摘要
Abstract
By determining rhizosphere soil availabe phosphorus and pH in different soil layers at the tillering-jointing, booting-heading, filling - milk stages of wheat in the wheat/fababean intercropping system and wheat monocropping system, a field experiment was carried out to study the effects of the intercropping on wheat rhizosphere soil available phosphorus concentration and pH and to investigate the interaction rule of available phosphorus and pH. The results show that compared with the monocroped wheat, the intercropping increases wheat yield significantly and improves rhizosphere soil available phosphorus concentration of wheat fields, and the intercropping effect is significant in 0-10 cm, 10-20 cm soil layers at the tillering - jointing, booting - heading stages. The rhizosphere soil pH of intercropped wheat fields is significantly lower than that of the monocropped wheat in 10-20 cm at the tillering-jointing stage and in 0-10 cm, 10-20 cm, 20-30 cm soil layers at the booting -heading stage. The rhizosphere soil available phosphorus concentration is negatively correlated with rhizosphere soil pH at the tillering-jointing, filling-milk stages. This research demonstrates that the decrease of rhizosphere soil pH in the intercroppig system is contributed to the increase of rhizosphere soil, available phosphorus concentration.关键词
间作/小麦/蚕豆/红壤/根际有效磷/pH值Key words
intercropping/ wheat/ fababean/ red soil/ rhizosphere available phosphorus/ pH value分类
农业科技引用本文复制引用
张德闪,王宇蕴,汤利,郑毅,左建花..小麦蚕豆间作对红壤有效磷的影响及其与根际pH值的关系[J].植物营养与肥料学报,2013,19(1):127-133,7.基金项目
国家"973"计划科研专项(2011CB100405) （2011CB100405）
国家自然科学基金项目(30860157) （30860157）
公益性行业(农业)科研专项(201103003) （农业）
云南省高校科技创新团队支持计划资助. （）
