Interaction effect of nitrogen levels and stages of nitrogen application on grain and malt yield of malt barley (Hordeum vulgare L.)

A field experiment was conducted during 2006–07 and 2007–08 at Ludhiana to study the interaction effect of nitrogen levels and stages of nitrogen application on grain and malt yield of malt barley (Hordeum vulgare L.). Interaction effect of nitrogen levels and stages of nitrogen application on emergence count at 15 days after sowing and days taken for initiation and completion of emergence was found to be non-significant during both the years. Interactions effect of nitrogen levels and stages of nitrogen application on height and dry matter accumulation of plant at all stages of growth was also found to be non-significant during both the years. Although the maximum height and dry matter accumulation of plant at all stages of growth were found with 125% of recommended N applied at three splits (50% before sowing + 25% at tillering + 25% at booting stage) during both the years. 125% of recommended N applied at three splits (50% before sowing + 25% at tillering + 25% at booting stage) gave more grain and malt yield than all other treatment combinations during both the years. The recommended dose of nitrogen is 62.5 kg/ha. The interaction effects of nitrogen levels and stages of nitrogen application on N, P and K, concentration in grain and straw of malt barley were non-significant during both the years.