首页 | 本学科首页   官方微博 | 高级检索  
     检索      

不同磷源对作物根际效应影响的研究
引用本文:刘世亮,介晓磊,李有田,安志装,胡著邦.不同磷源对作物根际效应影响的研究[J].土壤,2003,35(4):325-329.
作者姓名:刘世亮  介晓磊  李有田  安志装  胡著邦
作者单位:1. 中国科学院南京土壤研究所,南京,210008
2. 河南农业大学,郑州,450002
基金项目:河南省自然科学基金项目(960203011)资助.
摘    要:本文通过网室盆栽和室内分析相结合的方法,研究了几种P源施入石灰性土壤后对作物根际生物活性性质的影响,结果表明:对于不同P源处理,小麦生长过程中根际、非根际微生物种群的数量及根际效应(R/B)有显著差异,其大小顺序为:K2HPO4>CaMg-P>SSP>FA>CK。微生物数量在生育后期达到高峰。作物根际磷酸酶活性随生育期的进展逐步增强。不同P源处理影响下的土壤磷酸酶活性有一定的差异,总体顺序为:FA>SSP >K2HPO4> CaMg-P>CK。土壤碱性磷酸酶活性显著地高于中性磷酸酶活性。

关 键 词:根际  微生物  磷酸酶  根际效应

EFFECT OF SOURCES OF P ON CROP RHIZOSHOERE
Liu Shiliang,Jie Xiaolei,Li Youtian,An Zhizhuang and Hu Zhubang.EFFECT OF SOURCES OF P ON CROP RHIZOSHOERE[J].Soils,2003,35(4):325-329.
Authors:Liu Shiliang  Jie Xiaolei  Li Youtian  An Zhizhuang and Hu Zhubang
Institution:Liu Shiliang1 Jie Xiaolei2 Li Youtian2 An Zhizhuang1 Hu Zhubang2
Abstract:A combined method of pot culture under net with lab analysis was used in studying effect of sources of P on biological activity in crop rhizosphere in calcareous soil. The results show significant differences between treatments of different P sources,in population of microorganisms in soils inside and outside the crop rhizosphere and rhizosphere effect (R/B) during wheat growth period, with a decreasing sequence of K2HPO4>CaMg-P>SSP>FA>CK. The population of microorganisms peaked at the later stage of the wheat growth. The activity of phosphatase in the crop rhizosphere increased with the crop growth, but varied from treatment to treatment in the decreasing order of FA>SSP>K2HPO4>CaMg-P>CK. The activity of alkaline phosphatase was remarkably higher than that of neutral one.
Keywords:Rhizosphere  Microorganism  Phosphatase  Rhizosphere effect  
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《土壤》浏览原始摘要信息
点击此处可从《土壤》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号