PATIL, B.NDEVARAJA, M2019-02-192019-02-192004-01-12Th-6868http://krishikosh.egranth.ac.in/handle/1/5810095696A field experiment was conducted to study the "effect of different levels of NPK fertilization on growth, yield and quality of malt barley [Hordeum vulgare L.)", at Research and Development Farm, Ugar Sugar Works Limited, Ugar Khurd, Belgaum district during rabi, 2001-02. The experiment was laid out in randomised block design (three factor) with three replications. The highest total diy matter production (107.14 g/0.5 m row length), DM accumulation in leaves (26.92 g/0.5 m row length) and ear head (38.01 g/0.5 m row length) was observed due to application of 100 kg N ha-' at 90 DAS. Application of N @ 100 kg ha-' also accounted for maximum LAI at 90 DAS (2.65). Grain and straw yield were highest (46.53 and 67.45 q ha-i) with the application of 100 kg N ha ' and was at par with that of 80 kg N ha ' (43.44 and 66.62 q ha-'). Application of 100 kg N ha-' recorded maximum protein per cent in grains (10.81%), a-amylase activity (59.62 mg/g of maltose), husk percentage (9.53%) and germinative energy at 48 and 72 hours (95.51 and 99.33) and highest uptake of NPK (79.96, 23.12 and 202.42 NPK kg ha-i). Highest net returns (Rs.26,167 ha ') were recorded with application of 100 kg N ha-i and was at par with that of 80 kg N ha-'. Application of 60 kg P2O5 ha ' recorded significantly higher total diy matter production (97.59 g/0.5 m row length) and LAI (2.41) over 30 kg P2O5 ha-i. Grain and straw yield was significantly higher (40.34 and 63.43 q ha-') with the application of 60 kg P2O5 ha ' over 30 kg P2O5 ha-'. Protein content in grains, a-amylase activity, husk percentage and germinative energy at 48 and 72 hours were significantly higher with the application of 60 kg P2O5 ha-' over 30 kg P2O5 ha-'. Highest net returns (Rs.21,611 ha-') were recorded with application of 60 kg P2O5 ha-'. Application of potassium did not show significant effect on the overall performance of the crop. The interaction effects were found to be non significant for all the variables. To obtain higher yield, as well as malt quality, fertilizer dose of 80:30:20 NPK kg ha-' can be recommended, which is economically viable.ennullThesis