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Chinese Journal of Applied Ecology ›› 2000, Vol. ›› Issue (4): 582-586.

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Primary identification of organic compounds in soybean rhizospheric soil on continuous and alternate cropping and their allelopathy on soybean seed germination

HAN Limei1, YAN Fei1, WANG Shuqi1, JU Huiyan1, YANG Zhenming1, YAN Jichang2   

  1. 1. Department of Agronomy, Quartermaster University of PLA, Changchun 130062;
    2. Mass Spectrographic Laboratory, Northeast Normal University, Changchun 130024
  • Received:1998-07-07 Revised:1999-11-09 Online:2000-07-25

Abstract: Organic compounds extracted with ethanol (OCEWE) from soybean rhizospheic soil on continuous and alternate cropping at pod-string were identified by gas chromatography-mass spectrometry (GC-MS). The results showed the compounds mainly include organic acids, alcohol, acetone, aldehyde, naphthalene phenyl and furan hydrocarbon,many of which were reported as allelochemcals.Under this experiment condition,OCEWE did not show any allelopathy on soybean seed germination and radicle growth,which might be related with their critical toxicity concentrations.In addition,the relationship between allelopathy and barrier on soybean continuous and alternate cropping was also discussed.