Abstract

                                The results of a field experiment conducted for three consecutive years during summer 1990, 1991 and 1992 revealed that rhizobial inoculation significantly increased groundnut pod yield and returns under irrigated condition. Performance of rhizobial cultures TNAU 14, IGR 40 and IGR 40 6 was superior to other cultures tried. Though there was a response to rhizobial ioculation even at 100 per cent recommended dose of nitrogen (15 kg/ha), application of 7.5 kg N/ha along with seed treatment of Rhizobium resulted in higher benefit cost ratio. Groundnut variety VRI.1 performed better than Co.2

Key words : Groundnut, Yield, Rhizobium