Izadi Darbandi,E , , Rashed Mohasel,M , and Nasiri mahalati,M . "Study of competitive effects of barnyardgrass (Echinochloa crus - galli) and redroot pigweed (Amaranthus retroflexus) on dry bean (Phaseolus vulgaris)", Iranian Journal of Field Crops Research, 1, 1, 2003, 13-22. doi: 10.22067/gsc.v1i1.1197