1. Nitrogen fertilization and foliar urea effects on durum wheat yield and quality and on residual soil in irrigated Mediterranean conditions;Abad;Field Crops Res.,2004
2. Abendroth, L.J., Elmore, R.W., Boyer, M.J., Marlay, S.K., 2011. Corn growth and development. PMR 1009. Iowa State Univ. Ext., Ames.
3. Management of organic and inorganic nitrogen for different maize varieties;Ali;Sarhad J. Agric.,2011
4. Grain protein percentage, kernel hardness and grain yield of winter wheat with foliar applied urea;Altman;Agron. J.,1983
5. Yield and nitrogen dynamics in a rice-wheat system using green manure and inorganic fertilizer;Aulakh;Soil Sci. Soc. Am. J.,2000