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| Effects of Different Cultural Systems on Cucumber Soil Microbial Community Functional Diversity and Bacteria Communities |
| WANG Xu-hui1，ZHANG Xue-yan，GAO Li-hong |
| 1College of Agronomy and Biotechnology，China Agricultural University，Beijing 100193，China|2Agronomy College，Ningxia University，Yinchuan 750021，Ningxia，China |
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Abstract Using Biolog and PCR-DGGE to study the effects of different cultural systems on cucumber（Cucumis sativus L.）soil microbial community functional diversity and bacteria communities of cucumber rhizosphere soil．The results of Biolog showed that during the autumn winter season，all treatments improved the functional diversity and uniformity of soil microbial．The principal component analysis showed that carbon utilization by soil microbial communities of catching garlic have greatly changed in all seasons|catching crown daisy and pakchoi have the similar carbon utilization．The results of DGGE showed that introduced several catch crops in summer could increase the bacteria species and polymorphism including crown daisy and pakchoi．
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Received: 22 July 2011
Published: 18 September 2011
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