Nitrogen is an essential nutrient for plant growth and development. Legumes play an important role in sustainable management of dry arid regions. Most legumes can provide enough nitrogen for their physiological needs. Intensive farming practices that accomplish high yields need chemical fertilizers, which are not only costly, effective and also create environmental problems. Each major legume crop is nodulated by different species of Rhizobium.It is a fast growing bacteria which is a rich source of nitrogen to the crop. Increasing and extending the role of biofertilizers such as Rhizobium would decrease the need for chemical fertilizers and reduce adverse environmental effects.
Rhizobium, legumes, nodules, biofertilizer, nitrogen
