Critical period of weed control in big onion (Allium cepa L.) under two different agro-ecological zones of Sri Lanka

Liyanage, D.P.P.Wenaka, D.R.Wathugala, D.L.Niroshani, H.R.C.Yapa, D.S.2019-12-022019-12-022016Annals of the Sri Lanka Department of Agriculture, 18:p.121-124https://dl-doa.nsf.gov.lk/handle/1/1639AgronomyBig onionCritical period of weed control (CPWC)Agro ecological zonesLogistic equationGompertz equationCritical period of weed control in big onion (Allium cepa L.) under two different agro-ecological zones of Sri LankaArticle