تلخیص
A field experiment was conducted on sandy clay loam soil with two irrigation levels (7.5 & 12.5 cm) and four nitrogen rates (0, 50, 100 & 150 kg N ha" as urea) to study irrigationnitrogen management for wheat. Wheat straw and grain yield and N uptake was affected significantly by nitrogen rates and were maximum with the application of 150 kg N ha" where as irrigation depths did not affect these parameters. All the fertilizer treatments gave nitrogen recovery more than 60% and maximum (86%) was recorded where 50 kg N ha" was applied. In general, losses of nitrogen varied from 14-37%. Like nitrogen recovery, grain: nutrient ratio was also maximum in case of 50 kg N ha" application. drain: nutrient ratio decreased with increasing rate of nitrogen but it was same in case of both the irrigation depths. Results indicated no leaching of N()3-N in the present study.
M. Yaseen,, S. Muhammad, , M. Aslam , M. Sarfraz * . (1991) Irrigation_and_nitrogen_management_for_wheat, The Journal Soil & Environment , Volume 6, Issue (3-4).
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