ABSTRACT
Water use efficiency (WUE) of Maize is a function of physiological characteristics of maize, genotype, soil water holding capacity, meteorological conditions and agronomic practices. To improve WUE, integrative measures should aim to optimize cultivar selection and agronomic practices. The most
important management interaction in many drought-stressed maize environments is between soil fertility management and water supply. In areas subject to drought stress, many farmers are reluctant to economic loss risk by applying fertilizer, strengthening the link between drought and low soil fertility [1]. Ogola et al. [16] reported that the WUE of maize was increased by application of nitrogen. They added that maize plants are especially sensitive to water stress because of sparse root system.
