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- [5] EFFECT OF BORON AND CADMIUM ON NITROGEN-FIXATION IN SOIL ACTA MICROBIOLOGICA POLONICA, 1977, 26 (03): : 295 - 300
- [9] SYMBIOTIC NITROGEN-FIXATION AND PHOTOSYNTHESIS IN ALFALFA ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (SEP): : 10 - 10