Effects of n source on proton excretion, ionic balance and growth of Alnus-glutinosa (L.) Gaertner - comparison of N2 fixation with single and mixed sources of NO3 and NH4

Effects of n source on proton excretion, ionic balance and growth of Alnus-glutinosa (L.) Gaertner - comparison of N2 fixation with single and mixed sources of NO3 and NH4