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生态学杂志 ›› 1988, Vol. ›› Issue (2): 1-8.

• 研究报告 •    下一篇

大豆、向日葵等作物连作障碍与轮作效应机理的研究初报

于贵瑞1, 陆欣来1, 韩静淑2, 王德身3   

  1. 1. 沈阳农业大学;
    2. 中国科学院沈阳应用生态研究所;
    3. 辽宁省农业科学院
  • 收稿日期:1987-09-01 修回日期:1987-11-06 出版日期:1988-04-10

Soil Sickness due to Continuous Cropping and Mechanism of Rotational Effects of Sunflower, Soybean and Other Crops

Yu Guirui1, Lu Xinlai1, Han Jingshu2, Wang Deshen3   

  1. 1. Shenyang Agricultural University;
    2. Institute of Applied Ecology, Academia Sinica, Shenyang;
    3. Liaoning Academy of Agricultural Sciences
  • Received:1987-09-01 Revised:1987-11-06 Online:1988-04-10

关键词: 茶蚜, 异色瓢虫, 利它素, 味源, 行为反应

Abstract: An analysis of field yields and pot biomass during 1983 and 1984 indicated that corn, soybean, sunflower and sweet clover all caused evident soil sickness due to continuous cropping. The sickness could be released by means of soil sterilization. The inoculation with cultured enrichment liquids of soil microorganisms from continuous cropping plots restrained crop growth to a certain extent. Meanwhile, continuous cropping increased the number of fungi (F)and nematode, decreased the number of bacteria (B), root nodule and the B/Fratio in soybean root zone and root surfaces.

Key words: Toxoptera aurantii, Leis axyridis, Kairomone, Odor source, Behavior response