**5. Challenges and future research perspectives**

Role of Rhizosphere Microbes in Soil Fertility and Sustainability 'Zero Hunger Challenge' is the major goal of human efforts. This goal can be achieved by sustainable increment in the arena of agricultural productivity to satisfy the demands of abruptly spreading human population. Growing more and more foods from less and less farm holdings is a demand feature of our economy. The time of action is now. There is growing realization that agriculture must diversify. NUS more especially legumes have an important role to play in advancing agricultural development beyond the Green Revolution model of improving and raising the yields of staple crops.

NUS are local and traditional but are globally significant and thus require scientific and political attention beyond the local and national levels. Some of the major challenges to the sustainable use of NUS are neglected by agronomic researchers and policy-makers, genetic erosion, loss of local knowledge, marketing and climate change. The main purpose for the review is to encourage scientists and policy-makers to optimize and promote the benefit of NUS and to create links between scientific and traditional knowledge by establishing interdisciplinary research networks to identify suitable material for NUS breeding by means of strengthening cooperation among stakeholders and creating synergies at local, regional, national and international levels.
