(Fig. 2). Density and biomass of weeds in mixed culture systems
diminished significantly compared with single culturing
of each component of a mixture (Banik et al., 2006). Cover
crop can affect weed establishment through effects on the radiation
and chemical environment of weed and inhibit weed
emergence by physically impeding the progress of seedlings
from accessing light (Teadale and Mohler, 2000) as well as
by releasing phytotoxins that inhibit seedling growth (Blackshaw
et al., 2001).