Negrea, Adina; Lupa, Lavinia Afrodita; Muntean, Cornelia; Ciopec, Elvira-Mihaela; Negrea, Petru; Ghimboaşă, C.; Motoc, M.
(Timişoara: Editura Politehnica, 2008)
Nitrogen is one of the most important elements for the sustaining of life, interfering in different phases of plants
and animal life. The forms in which the nitrogen appears in water are: molecular nitrogen – N2, nitrogen ...