engleski

Seasonal dynamic of weed biomass in narrow and wide row soybean (Glycine max (L.) Merr.)

A field study was conducted over 3 years to compare weed biomass dynamic in narrow and wide row soybean (25, 50 and 70 cm rows). Weed community were comprised of 34 grass and dicot weed species of varied perennation, and dominance of Asteraceae and Poaceae families. Weed infestation differ throughout the experiment and among all determined species Amaranthus retroflexus, Chenopodium album, Setaria viridis and Sorghum halepense are the only weeds present in all years and row spacings. Although seasonal dynamic of weed biomass from sowing to harvest varied among each row spacing and years, planting soybean in wide rows reduces early-season crop tolerance to weeds.

soybean ; row spacing ; weed biomass ; competition

nije evidentirano