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Potere di ammonizzazione 
NH, mg. per litro: 
• 
Medie . . . 
Potere di nitrificazione 
HNO, mg. per litro: 
Medie . . . 
Potere di denitrificazione 
Ore: 
(Il segno oo indica che nella coltura non si 
raggiunse la totale denitrificazione del nitrato 
contenutovi). Medie 
Potere di assimilazione dell’azoto 
N mg. per litro : 
Medie . . . 
