Effective weed -free period of common beans in two different agro -ecological zones of Sri Lanka

Premalal, K.P.S.B.Sangakkara, U.R.Van Damme, P.Bulcke, R.2014-11-122014-11-121999Tropical Agricultural Research, 11:p.19-28https://dl.nsf.gov.lk/handle/1/12209AgriculturePhaseolus vulgarisWeed managementPanicum maximumEffective weed -free period of common beans in two different agro -ecological zones of Sri LankaA