![](http://www.alamy.com/thumbs/6/AE143DF5-FFF8-43BE-9FD4-F54C1F022C38/ACRB3Y.jpg)
Rhizobium root nodules on the roots of a broad or field bean for nitrogen fixation
Size: 3702px × 5574px
Photo credit: © Nigel Cattlin / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: acids, agriculture, amino, ammonium, bacteria, bean, broad, close, crop, diazotrophs, faba, fabaceae, family, field, fixation, fixing, garden, gaseous, legume, leguminosae, leguminous, nitrogen, nitrogen-fixing, nodule, nodules, pea, rhizobia, rhizobium, root, rotation, rotational, symbiotic, vegetable, vicia