ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,836, issued on June 2.

"Agricultural fertilizers with montmorillonite clays" was invented by Richard Gonzagowski (Albuquerque, N.M.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An agricultural or horticultural fertilizer, and method of making the fertilizer, featuring processed montmorillonite clay and other ingredients for improving plant growth and health. Liquid fertilizers for use in drip irrigation may comprise potash in an aqueous blend, as well as citric acid and humate. The method involves the preparation of a montmorillonite mineral-humate solution, which solution is mixed with other ingredients. In an early step, the montmorillonite and t...