Abstract
A field experiment was conducted on the Bhalwal series (Ustollic Haplargid) with four irrigation levels (0.75, 1.00, 1.25 and 1.50 ET) and four nitrogen rates (0, 50, 100 and 150 kg N ha-I as CAN). Maize grain yield and N uptake was affected significantly by N rates, being maximum with the application of 150 kg N ha'. The irrigation depths did not affect these parameters. Though, N recovery was affected non-significantly by both the N rates and irrigation depths yet it increased with decreasing N rates. Comparison of NOrN in soil before sowing, during crop growth and after harvesting maize showed that soil N03-N increased with increasing dose of N. The amount of N03-N in soil during crop growth and after harvesting, especially at greater depths, was significantly higher than that before sowing which reflected leaching of N03-N.
