Effect of organic manure and nitrogen fertilization on productivity of barley (Hor- deum vulgare)

The results of the field experiment conducted during winter (irrigated) seasons of 2000-2001 and 2001-2002 revealed that application of organic manure improved yield attributes and yield of barley (Hordeurn vulgare L., s.1.). Application of vermicompost Q 4.5 tonneslha resu!ted in the highest grain yield over no-organic manure, vermicompost 8 1.5 and 3.0 tonneslha and FYN! 8 5.0, 7.5 and 10.0 tonneslha respectively. However, vermicompost Q 4.5 tonneslha being at par with vermicompost 8 3.0 tonneslha recorded significantly highest net returns. However, vermicompost Q 4.5 tonneslha brought significantly highest uptake of NPK over rest of the treatments. Further, the vermicompost 8 1.5 tonneslha was almost equally effective with FYM 8 7.5 and 10.0 tonneslha. Increasing dose of nitrogen improved significantly the yield attributes, yields, net returns, total uptake of NPK in barley crop. The combined application of vermicompost Q 4.5 tonneslha + 40 kg Nlha obtained higher grain yield.