Central Soil and Water Conservation Research and Training Institute, Dehradun, U.P., 248195.
* Present address: Division of Soil Science and Agricultural Chemistry, Indian Institute of Sugarcane Research, Lucknow, D.P., 226002.
Field experiments were conducted for four years on alluvial soil (Thermic Udic Haplustalf) of Doon Valley, to determine water use, water use efficiency, nutrient uptake and yield of wheat (Triticum aestivum L.) in response to supplemental irrigation and N fertilization. Wheat grain yield was maximum (4474 kg ha−1) with presowing irrigation plus irrigation at crown root initiation stage at a nitrogen level of 150 kg ha−1. Uptake of N, P and K and water use increased with irrigation water and N application. Highest water use efficiency was recorded with presowing irrigation up to field capacity level. Both absolute and relative yields of wheat were correlated with absolute and relative water use.
Supplemental irrigation, nitrogen, water use, nutrient uptake, wheat
