Effect of purple nutsedge(Cyperus rotundus) population densities on onion(Allium cepa) as influenced by Nitrogen in the Eastern Province of Sri Lanka

Geretharan, T.Sangakkara, U.R.Arulnandhy, V.2014-11-122014-11-122011Tropical Agricultural Research, 22(4):p.348-355https://dl.nsf.gov.lk/handle/1/12426AgricultureOnionAllium cepaYield increaseweed controlPurple nutsedgeCyperus rotundusPopulation densityNitrogen rateEastern provinceFertilizer managementEffect of purple nutsedge(Cyperus rotundus) population densities on onion(Allium cepa) as influenced by Nitrogen in the Eastern Province of Sri LankaA