关键词:   根际微生态系统, 间作, 套作, 种间竞争作用, 种间促进作用, 根际效应

Abstract: This paper reviewed the interspecific rhizosphere interactions between intercropped species in re-cent years. Main results were: 1) The yields in border rows of intercropped wheat were significantly higherthan that in inner row in the wheat-maize and wheat-soybean intercropping systems, respectively. The con-tribution of the border row yield advantage to total grain yield increase was at least 2/3. 2) The border rowyield advantage of intercropped wheat derived from the differences in interspecific competitiveness, andwheat proved to be more competitive relative to maize and soybean in the two intercropping systems. 3)There was an uptake and growth recovery after harvest of the earlier-maturing species, which made the late-maturing species compensate for impaired early growth once early-maturing species was harvested. 4) Inter-cropping yield advantage in the maize-faba bean depended completely on interspecific root interaction betweenintercropped maize and faba bean.

Key words: Intercropping interspecific facilitation, Interspecific competition, Rhizospheremicroecosystem, Ihizosphere effect