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不同磷源对小麦根际生物活性及其根际效应的影响
引用本文:刘世亮,翟东明,介晓磊,李有田,安志装,胡著邦,王建玉.不同磷源对小麦根际生物活性及其根际效应的影响[J].河南农业科学,2002(11):26-30.
作者姓名:刘世亮  翟东明  介晓磊  李有田  安志装  胡著邦  王建玉
作者单位:河南农业大学,郑州,450002
基金项目:河南省自然科学基金项目 (96 0 2 0 30 11)
摘    要:通过网室盆栽和室内分析相结合的方法 ,研究了几种磷源施入石灰性土壤后对作物根际生物活性的影响。结果表明 :对于不同磷源处理 ,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 :K2 HPO4>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进程逐步增强。不同磷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 >K2 HPO4>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:小麦  根际  微生物  磷酸酶  根际效应  磷源

Effect of different phosphorus on rhizosphere organism activity and rhizosphere effect in Wheat
LIU Shi liang,ZHAI Dong ming,JIE Xiao lei,LI You tian,AN Zhi zhuang,HU Zhu bang,WANG Jian yu.Effect of different phosphorus on rhizosphere organism activity and rhizosphere effect in Wheat[J].Journal of Henan Agricultural Sciences,2002(11):26-30.
Authors:LIU Shi liang  ZHAI Dong ming  JIE Xiao lei  LI You tian  AN Zhi zhuang  HU Zhu bang  WANG Jian yu
Abstract:The pot experiment combined with analysis in lab, was used to study the biologic activity in wheat rhizosphere soils after several kinds of phosphorus fertilizer were added into calcareous soil. The results indicated that the amounts of microorganism in rhizosphere soil and bulk soil and effect of rhizosphere (R/B)had remarkable difference during wheat growth for different treatments of phosphorus with the sequence being: K 2HPO 4>CaMg-P>SSP>FA>ck. The amounts of microorgasnism reached the peak at the later stage of growth.The activity of phosphate in wheat rhizosphere were gradually raised with crop growth.The activity of soil phoshpates were different among different phoshporus treatments,with the sequence being:FA>SSP>K 2HPO 4>CaMg-P>ck.The activity of alkaline phosphate was remarkably higher than that of neutral phosphate.
Keywords:Wheat  Rhizosphere  Microorganism  Phosphate  Rhizosphere effect  Phosphorus
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