11. Nitrogen fixing : Acacia auriculiformis can fix nitrogen after nodulating with a range of Rhizobium and Bradyrhizobium strains. 12. Bio-fertilizers such as Rhizobium , Azotobacter, mustard, cotton, potato and other vegetable crops. 13. In addition, soybean uses isoflavones to stimulate soil-microbe rhizobium to form nitrogen-fixing root nodules. 14. As a legume, this shrub can fix nitrogen in the soil through a symbiotic relationship with Rhizobium bacteria. 15. The word " rhizobium " is still sometimes used as the singular form of " rhizobia" 16. NFL manufactures and markets three types of Bio-Fertilizers namely Rhizobium , Phosphate Solubilising Bacteria ( PSB ) and Azetobactor. 17. Factors that influence nitrogen fixation include, Rhizobium strain, interactions between strain and host genotype, available nutrients and soil pH. 18. For example, legumes use flavonoids to signal a symbiotic relationship with nitrogen fixing fungi ( rhizobium ) to increase their nitrogen uptake. 19. Root nodules containing " Rhizobium " bacteria have been found on " R . regia " trees in India. 20. Legumes are inoculated with bacteria of the genus " Rhizobium " which induce nitrogen-fixing nodules in the roots of legumes.
