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Acta Prataculturae Sinica ›› 2010, Vol. 19 ›› Issue (2): 235-240.

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A study on crop-weed allelopathy and its relationships based on niche theory

OU Qiao-ming1, CHEN Yu-liang1, MA Li-rong2, ZHANG Xu-cheng3,LUO Jun-jie1   

  1. 1.Bio-technology Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China;
    2.Center of Science and Technology Information, Gansu Academy of Agricultural Sciences,Lanzhou 730070, China;
    3.Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China
  • Received:2009-03-20 Online:2010-02-25 Published:2010-04-20

Abstract: Crop-weed allelopathy is one of the essential mechanisms of niche competition between crops and farmland weeds. It is significantly important to solve ecological problems by applying crop-weed allelopathy and niche theory in practical agricultural production. In this article, the underlying contact of crop-weed allelopathy and its niche is preliminarily explored. The subject is illuminated via niche theory. Applications of the study in macro-ecology on individual-ecological or micro-ecological issues, such as the crop-weed allelopathy are discussed from a macro-ecological perspective. A macro-ecological assessment for preventing and controlling farmland weeds can be achieved by strongly enhancing artificial selection and rational distribution of strongly allelopathic crop varieties which have inhibiting effects on farmland weeds in a field ecological environment. The article can provide a theoretical basis for further “Study of crop-weed allelopathy based on niche theory”.

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