Regional Research Station, Indian Grassland and Fodder Research Institute, University Agricultural Sciences, Campus, Dharwad, Karnataka, 580 005
1Present address: Division of Agronomy, IARI, Pusa, New Delhi 110 012
A field experiment was conducted during winter season (1998–99 and 1999–2000) to assess the effect of 4 irrigation schedules based on irrigation water: cumulative pan evaporation (IW: CPE) ratios on performance 2 oat varieties (‘JHO 822’ and ‘JHO 851’) revealed that the varieties did not differ for fodder yield and N concentration. However, based on crude protein yield (q/ha) ‘JHO 851’ (6.08) was found significantly superior to ‘JHO 822’ (5.29), whereas in respect of water-use efficiency (kg dm/ha-mm) ‘JHO 822’ (28.6) was superior to ‘JHO 851’ (20.3). Among the 4 irrigation schedules, fodder yield and water-use efficiency increased significantly with increasing IW: CPE ratio from 0.0 to 0.9 ratio.
Oat varieties, IW:CPE ratio, Irrigation schedule, Fodder, Crude protein, N, Water-use efficiency
