A seed treatment composition which efficiently applies a seed treatment material such as a bacterium or plant protein to a seed by using a talc-based carrier material. The seed treatment composition generally includes a carrier material which is mixed with a seed treatment material and applied to a seed such that the carrier material and seed treatment material both adhere to and uniformly coat the exterior surface of the seed. The carrier material will generally include talc which mixes with the seed treatment material and adheres to the exterior of the seed. The seed treatment material may comprise any solid, particulate material which would benefit a seed, such as an inoculant, bacterium, plant proteins, insecticide, and/or fungicide.