Mihail Dumitru, Anca-Rovena Lacatusu, A. Vrinceanu, Nicoleta Marin, Claudia Preda. "ORGANO-MINERAL FERTILIZERS - EQUILIBRIUM FACTOR IN PLANT NUTRITION." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Water Resources. Forest, Marine and Ocean Ecosystems (2017): 413-420. https://doi.org/10.5593/sgem2017/32/s13.054