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采用复合取代试验设计研究了拉巴豆、宽叶雀稗与紫茎泽兰的竞争。结果表明,入侵地土壤显著降低了拉巴豆和宽叶雀稗的生物量,但对紫茎泽兰的生物量无显著影响;入侵地土壤也显著降低拉巴豆的竞争攻击力系数(A),但是对宽叶雀稗的A值无显著影响。这说明入侵地土壤对不同的替代植物有不同的影响,对拉巴豆的负面影响大于宽叶雀稗,在替代控制中选择宽叶雀稗可以更好地抑制紫茎泽兰生长。
The substitution substitution test was used to study the competition between Labt bean, Echinochloa crus-galli and Eupatorium adenophorum. The results showed that invaded soils significantly reduced the biomass of barbadospermum and broadleaf paspalum, but had no significant effect on the biomass of A. adenophora. Invaded soils also significantly reduced the competitive attack coefficient (A) But had no significant effect on the A value of barnyardgrass. This shows that the invasion of the soil on different alternative plants have different effects on the negative impact of Lazato more than broadleaf paspalum, alternative control of broadleaf paspalum can better control the growth of Eupatorium.