Abstract
Consumptive-use (ET) study on wheat crop was undertaken with the help of lysimeter installed at the experimental farm of the Directorate of Crop Produc-tion and Water Management, University of Agriculture, Faisalabad during rabi season of 1992-93. The irrigations were scheduled at the tillering, head develop-ment, flowering and grain formation stages of the wheat crop. The depth of irrigation varied as per requirement to meet the field capacity of soil. It was indicated that total consumptive-use (ET) of wheat crop was 329.07 mm during 160 days. The pan•,evaporation during the same period was 431.23 mm. The daily water requirement of wheat crop was 2.06 mmiday. The study also indkated that consumptive-use (ET) increased during head development to flowering stage of crop indicating thereby high water demand. The grain yield was 5850.38 kg/ha and WUE obtained was 17.76 kg/lia.nun.
