Aasif Khan, Ravindra Nath, Rahul Dhankar, Parvez Aalam, Sahim Khan, Deepak Maurya and Deepayan Roy
Abstract
A field experiment was conducted during rabi 2025-26 at Research Farm, GD Goenka University, Gurugram, Haryana to study the effect of different doses of nitrogen and phosphorus on growth, yield and yield attributes of barley (Hordium vulgare L.) cv. BH-959. The experiment consisted of 10 nutrient treatments in a randomized block design with three replications Among the treatments, T4 (75 kg N + 37 kg P2O5 ha-¹) gave highest plant population (46.80 m-¹ row length), plant height (64.51 cm), leaf area index (2.24), dry matter accumulation (236.00 g m-¹ row length), crop growth rate (6.26 g m-¹ day-¹) and relative growth rate (0.0476). T4 recorded highest effective tillers m-1 row length (116.10), spike length (11.32 cm), grains spike 1 (51.56), grain yield (4578.68 kg ha-1), straw yield (6242.51 kg ha-1) and biological yield (10821.19 kg ha-1). Control treatment showed the lowest growth and yield performances. Overall, application of 75 kg N + 37 kg P2O5 ha-¹ was found most effective in improving growth, yield attributes and productivity of barley under the agro-climatic conditions of Gurugram, Haryana.