[Quality of wines and fertilizing plans [Vitis vinifera L.; Emilia-Romagna]]

abonos nitrogenados abonos organominerales acide malique acide tartrique acidez acidity acidità acido malico acido tartarico alcoholic fermentation azote azoto azucares calcio calcium concimi azotati cotico erboso emilia romagna farmyard manure fermentation alcoolique fermentazione alcolica fertilisation fertilizer application fertilizzanti organominerali festuca field experimentation fumier gazon grape must labranza lavorazione del terreno letame lolium magnesio magnesium malic acid mosto de uva nitrate nitrates nitrati nitratos nitrogen nitrogen fertilizers organomineral fertilizers ph polifenoles polifenoli polyphenol polyphenols potasio potassio potassium raisin de cuve sperimentazione in campo sucres sugars tartaric acid tillage travail du sol turf uvas para vino uve da vino vinification vinificazione vitis vinifera wine grapes winemaking zuccheri