The common bean being leguminous can benefit of the symbiotic association with
bacteria of the genus Rhizobium, leading the economy of nitrogen fertilizers. The application of
nitrogen, molybdenum, and the inoculation of seeds can interfere in the symbiotic process. Studies
that seek to verify this influence for the bean crop, are of great importance. This trial had the
objective of studying the effect of seed inoculation, nitrogen, and molybdenum application on
bean plant growth in winter season. It was conducted in Selvíria-MS, at Experimental Station of
UNESP, Ilha Solteira Campus. The randomized complete block design was used, in a factorial
scheme 2x3x4 with four replications. The treatments constituted of the absence and inoculation of
Rhizobium tropici, absence or with molybdenum application through leaves or into the rows, and
four side dressing nitrogen levels. The inoculation presence increased the plant dry matter weight;
however, there was decrease in pod/plant number, grain/plant number and weigth of 100 seeds.
The 90kg/ha nitrogen level provided larger production of seeds, as in presence as inabsence of
inoculation. No effect of molybdenum was observed in all evaluations. To the seed germination
and field emergency there was not effect of inoculation; the treatment without molybdenum and
with 90kg/ha nitrogen provided seeds with larger germination index.