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- [2] STUDIES ON PURIFICATION OF WASTEWATER FROM NITROGEN-FERTILIZER INDUSTRY BY INTENSIVE CULTURES OF ALGAE .3. GROWTH OF CHLORELLA-VULGARIS AND UTILIZATION OF NITROGEN IN WASTES FROM NITROGEN-FERTILIZER INDUSTRY ACTA MICROBIOLOGICA POLONICA, 1976, 25 (04): : 375 - 382
- [3] SMALL NITROGEN-FERTILIZER FACTORIES IN OUR COUNTRY INCREASED THEIR OUTPUT BY A BIG MARGIN CHINESE ECONOMIC STUDIES, 1977, 11 (01): : 48 - 51
- [7] EVALUATION OF RESIDUAL EFFECT OF UREA NITROGEN-FERTILIZER AND SOME FACTORS AFFECTING IT AGROKEMIA ES TALAJTAN, 1977, 26 (1-2): : 48 - 54
- [9] EFFECT OF LEVEL OF NITROGEN-FERTILIZER ON PROTEIN-COMPOSITION OF SOME BARLEY CULTIVARS NUTRITION REPORTS INTERNATIONAL, 1982, 25 (01): : 89 - 96