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EFFECT OF NITROGEN-FIXING BACTERIA INOCULATION ON BIOLOGICAL NITROGEN
FIXATION IN SUGARCANE BY 15N ISOTOPE DILUTION TECHNIQUE UTILIZATION OF TRITIATED WATER DILUTION TECHNIQUE IN DETERMINATION OF NITROGEN PARTITIONING IN CASHMERE GOATS Using 15N isotopic dilution method to quantify the biological nitrogen fixation in sugarcane UING ~(15)N ISOTOPIC DILUTION METHOD TO DETERMINE THE QUANTIFICATION OF ASSOCIATION NITROGEN FIXATION BACTERIA SOIL FROM OAT ROOTS