MANAGEMENT OF SURFACE IRRIGATION ON WHEAT YIELD IN OLD VALLEY

Abstract

Two field experiments were carried out at Gemmeiza Agric. Res. Station during winter (2012/2013 and 2013/ 2014) seasons to study the effect of three irrigation intervals (every 30, 40 and 50 days), farmyard manure (with and without farmyard manure) and three nitrogen fertilizer levels (40, 60 and 80 kg N/ fed) on wheat yield, yield components and water use efficiency of wheat. A split – split plot design with three replication was used. The most important results could be summarized as followed. Due to irrigation every 30 days the plant height, straw yield (ton /fed), spike height .No. of grains /spike and grain yield (Mg /fed) were increased. the water use efficiency was decreased .Using farmyard manure increase the plant height, straw yield ( ton/fed ) ,spike height .No. of grains /spike , grain yield (Mg /fed) and water use efficiency compared to without farmyard manure .By increasing fertilization N levels increase both plant height, straw yield ( ton/fed ) ,spike height .No. of grains /spike , grain yield (Mg /fed) and water use efficiency were increased .Interactions between irrigation interval 30 days , with farmyard manure and fertilization level 80 kg N/fed. could be recommended to obtain the best results of wheat yield .