Competitive performance of purple nutsedge (Cyperus rotundus L.) and onion (Allium cepa L.) as affected by different sources of Nitrogen

Geretharan, T.Sangakkara, U.R.Arulnandhy, V.2014-11-122014-11-122012Tropical Agricultural Research, 23(4):p.290 - 299https://dl.nsf.gov.lk/handle/1/12506AgricultureOnionAllium cepa L.Purple nutsedgeCyperus rotundus L.Crop weed competitionNitrogen fertilizersCompostWeed managementCompetitive performance of purple nutsedge (Cyperus rotundus L.) and onion (Allium cepa L.) as affected by different sources of NitrogenA