Influence of nitrogen and phosphorus levels on phenology, growth and yield of bed planted wheat under varying irrigation levels in semi-arid conditions

A field study was conducted in a semi-arid climate to assess the effect of nitrogen and phosphorus on timely sown bed planted wheat under varying irrigation levels. The soil sandy loam, having 0.36% organic carbon pH 8.2. It low available N (132 kg/ha), medium P (11.6 kg/ha) rich K (325 kg/ha). experiment consisted sixteen treatment combinations four levels (Two, three, five irrigations) main plots fertilizer (80, 90, 100 110% recommended i.e., 150 kg 60 P2O5/ha) sub-plots, laid out split-plot design with three replications. Application irrigations recorded significant increase plant height, dry matter accumulation, leaf area index, grain (5022kg/ha) straw yield (8578 net returns over two, irrigations. increased doses NP significantly growth parameters, up dose NP.