A secondary air seeder assembly for depositing seed along the tire tracks formed by an air seeder cart and system comprising the same is provided. The secondary air seeder assembly includes first and second elongated, parallel main frame members having terminal forward ends and terminal down turned rearward ends. First and second elongated, parallel, spaced apart transverse frame members are connected to and extend between the first and the second main frame members. Forward caster wheels are connected to the terminal forward ends of the first and the second main frame members. Rearward wheels are connected to the terminal down turned rearward ends of the first and the second main frame members. First and second elongated coupling frame members are connected at spaced apart first ends thereof to the first transverse frame member and connected together at second ends thereof forming a hitch point. A hitch is located at the hitch point. One or more dry material applicator assemblies are connected to the second transverse frame member between the first and second main frame members. One or more dry material applicator assemblies connected to the first transverse frame member between the first and second main frame members.
