扁穗牛鞭草+红三叶混播草地生物量及种间竞争的动态研究

The Dynamical Studies on Biomass and Interspecific Competition of Limpograss and Red Clover Mixture

试验对‘广益’扁穗牛鞭草和‘巫溪’红三叶单播及混播群落生物量、种间竞争力进行了动态研究,结果表明最佳混播组合为75%扁穗牛鞭草+25%红三叶。从整个混播群落看,扁穗牛鞭草生长快,植株高,其竞争力强于红三叶,在竞争中占优势。

The dynamical studies on the biomass and interspecific competition of ＇ Guangyi＇ Limpograss [Hemarthria compressa （L. F. ） R. Br. cv. Guangyi] and ＇Wuxi＇ Red Clover （ Trifolium repens L. cv. Wuxi） in monoculture and mixture were conducted in the experiment. The results show that the optimal mixture combination is 75 % limpograss ＋ 25 % red clover. In all treatment, lirnpograss grows quickly, and the plant is much higher, so its competition of limpograss in communities is superior to the red clover.