US Patent 7096803 Seed boot opener having interchangeable dispensers

A seed boot having a modular or replaceable opener removably fastened to the seed boot. The opener is configured in any of several embodiments for discharging a fluent material such as seed in different ways, including narrow single row, wide single row, and double row. A second fluent material such as fertilizer may be dispensed in an additional discharge stream in different embodiments. In some embodiments, two fluent materials may be mixed within the seed boot and dispensed together.