Effect of Purple Nutsedge (<i>Cyperus rotundus</i>) Population Densities on Onion (<i>Allium cepa</i>) as Influenced by Nitrogen in the Eastern Province of Sri Lanka

by T Geretharan, UR Sangakkara, V Arulnandhy
Published 2011-11-01

Competitive Performance of Purple Nutsedge (<i>Cyperus rotundus</i> L.) and Onion (<i>Allium cepa</i> L.) as Affected by Different Sources of Nitrogen

by T Geretharan, UR Sangakkara, V Arulnandhy
Published 2012-11-01