A method and apparatus for minimizing the volume of a liquid carrier used for delivering an agricultural product into a furrow during planting. The apparatus includes a seed tube assembly for dispensing seed. A seed firmer assembly is operatively connected to the seed tube assembly. A seed firmer application tube assembly is mounted to the seed firmer assembly. The seed firmer application tube assembly has an outlet end for dispensing a carrier containing an agricultural product. A seed firmer brush is mounted to the outlet end of the seed firmer application tube assembly. The seed firmer brush is configured to contact the carrier containing the agricultural product during the dispensing thereof and brushing the carrier containing the agricultural product onto the seed being dispensed from the seed tube assembly.