Abstract:Two field experiments were carried out during winter season (2016/2017) and summer season (2017) an clay soil to evaluate the effects of N management practices with irrigation on wheat and maize crop, nitrogen fertilizers were added before or after irrigation as a three sources of N (urea, ammonium nitrate and ammonium sulfate) on vegetative growth, production of yields, NPK content in grains of both wheat and maize as well as nitrogen recovery. The treatments included four doses from recommended dose ( 0, 60,… Show more
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