Abstract

The Rhizobium isolates were obtained from root nodules of Sesbania grandiflora (L.) grown in different soil samples. In Leonard jar experiment, the plants inoculated with the isolate. SG-5 gave maximum dry weight (1 g/plant), nodule number (47 per pl int) and total nitrogen content (51.80 mg/plant). Similarly pot culture experiment also revealed that plant inoculated with SG-5 isolate gave maximum dry weight (1.51 g/plant) and total nitrogen content (43.34 mg/plant). The response of rice crop to the incorporation of inoculated green manure was encouraging with respect to nitrogen content, phosphorus content and grain yield.

Keywords: Rice, Green Manuring, Rhizobium, Sesbania grandiflora