Effect of the application of nitrogen, phosphorus and potassium fertilizers on yield and other characteristics of corn, Zea mays L. [Egypt].

application methods caracteres de rendimiento composante de rendement crecimiento croissance crop yield egipto egypt engrais npk engrais potassique fertilizantes fosfatados fertilizantes nitrogenados fertilizantes npk growth nitrogen fertilizers npk fertilizers phosphate fertilizers potash fertilizers production de semences rendement des cultures rendimiento de cultivos seed production yield components zea mays