Field experiment were executed at Gemmiza Agricultural Research Station during season 2009 /2010, to study effect of irrigation systems, drip (surface and subsurface) irrigation and traditional irrigation. Levels of nitrogen fertilizer inputs and row width on lettuce fresh weight (gm) , lettuce fresh tall (cm) , The objectives of study are evaluation trickle irrigation systems on lettuce crop. Surface drip (DI), subsurface drip irrigation(SDI) compared with surface irrigation ( SI) and the interactions of water and nitrogen fertilizer inputs on crop yield and quality The effect of irrigation systems, the results indicated that .increase the lettuce fresh weight (gm) , lettuce fresh tall (cm) , number of fresh leaf, lettuce stem weight (gm) and lettuce stem tall(cm).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.