Response of Wheat to Foliarly Applied Urea at Different Growth Stages and Solution Concentrations

Abstract

Field investigations were conducted in Pakistan, to evaluate the performance of wheat genotypes Soghat-90 and Sind-81 when sprayed at different growth stages using 2, 4 and 6% urea solution. Foliar-applied urea was better utilized by Soghat-90 and Sind-81 compared to the standard soil application. Irrespective of growth stages, foliage efficacy of urea was most prominent at 4% solution. Significantly high crop harvests, N uptake and agronomic efficiency were recorded when both cultivars were sprayed at tillering and heading stages. Grain protein content was improved by late season spraying with 6% urea solution.