The effect of molybdenum used as seed treatment and of pelleting seeds on initial growth, nitrogen fixation and forage and seed yield on white clover (Trifolium repens L.) were evaluated in a field experiment. A randomized block was used with eight treatments and four replications, testing the effects with (40mg/g of Mo/g of seeds) and without molybdenum as sodium molybdate and four pelleting types (lime, lactose, lime + lactose and without pelleting). Seeds of all treatments were inoculated with Rhizobium leguminosarum biovar trifolii. Molybdenum provided significant increases on nitrogen fixation and on forage and seed yield. Pelleting also increased significantly nitrogen fixation, increasing forage yield.