[Effect of mineral and organic nitrogen fertilization on maize performance] | Efecto de la fertilización nitrogenada mineral y orgánica en el rendimiento de maíz

abonos nitrogenados agricultura de regadio application rates crop yield dose d'application engrais organique espagne fertilisation fertilizer application field experimentation inorganic fertilizers irrigated farming liquid manures nitrate nitrates nitratos nitrogen fertilizers nitrogen metabolism organic fertilizers purin rendement des cultures rendimiento de cultivos spain zea mays