[The first year of trials of Assopa on integrated production [Solanum tuberosum L. - Emilia-Romagna]]

abonos nitrogenados application rates asociaciones de agricultores association d'agriculteurs associazioni di agricoltori besoin nutritionnel chemical composition chlorophylle chlorophylls clorofilas clorofille composition chimique composizione chimica concimi azotati contenido de materia seca crop losses crop yield dimension dimensioni dimensions dose d'application dosi di applicazione dry matter content elateridae european union farmers associations fertilisation fertilizer application feuille field experimentation fitotoxicidad foglie hojas integrated plant production leaves necesidades de nutrientes nitrate nitrates nitrati nitratos nitrogen fertilizers nutritional requirements papa parassiti delle piante patate perdite colturali pests of plants phytotoxicity plagas de plantas pomme de terre potatoes produzione vegetale integrata ravageur des plantes reglamentaciones regulations rendement des cultures rendimiento de cultivos residues residui residuos solanum tuberosum tubercule tuberi tubers unione europea