[Alternative nitrogen fertilization on crops typical of Southern Italy [Triticum durum Desf.; Helianthus annuus L.; Beta vulgaris L.; Lycopersicon esculentum Mill.; Lactuca sativa L.; Apulia]]

abonos de acción retardada abonos nitrogenados abonos organominerales abonos orgánicos aplicación de abonos application rates apulia barbabietola da zucchero beta vulgaris betterave sucrière blé dur concimi a lento rilascio concimi azotati contenido de lípidos contenido proteico contenuto lipidico contenuto proteico crop yield dose d'application dosi di applicazione dosis de aplicación engrais azoté engrais organique engrais organominéral engrais retard experimentación en campo expérimentation au champ fertilisation fertilizer application fertilizzanti organici fertilizzanti organominerali field experimentation graine de tournesol grano duro hard wheat helianthus annuus lactuca sativa laitue largura lattuga lechugas length lettuces lipid content longueur lunghezza lycopersicon esculentum nitrogen fertilizers organic fertilizers organomineral fertilizers peso poids pomodori pouilles protein content puglia racine radici raíces remolacha azucarera rendement des cultures rendimiento de cultivos roots seme di girasole semilla de girasol slow release fertilizers sperimentazione in campo sugarbeet sunflower seed teneur en lipides teneur en protéines tomate tomatoes trigo duro triticum durum weight