Legume, the most important plant group concerned in symbiotic nitrogen fixation or dicotyledonous plants of the family Fabaceae. Legume crop inoculated with Rhizobium were found well nodulated and resulted increase in yield. Biological nitrogen fixation is an important process for agricultural productivity in many cropping system because of direct inputs of atmospheric nitrogen, and rotational effects such as disease control. In many agricultural situations the availability of a suitable source of nitrogen is the major factor limiting crop productivity. Addition of FYM 10 to 15 t/ha stimulated the growth and activity of microorganisms and therefore, increased growth and development of legume crops. Application of FYM and Rhizobium inoculation of legumes increased yield and made soil more fertile. N applications decreased the number of nodules formed during early growth stages of legumes. But inoculation combined with foliar application of N and P gave better seed yield.
