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Magruder Plots

Stillwater, US

Magruder Plots

The Magruder Plots are experimental winter wheat field plots at Oklahoma State University established in 1892. They are the third longest-running such field trial in the United States, following the Morrow Plots established in 1876 at the University of Illinois at Urbana–Champaign (on corn), and the

Sanborn Field established in 1888 at the University of Missouri (on grain crops and forage). They are examples of long-term experiments. Originally planted in the fall of 1892 by A. C. Magruder, first professor of agriculture at Oklahoma A & M (now Oklahoma State University), these plots were established to obtain information on the ability of the soil to continue to produce good yields of wheat without fertilization. Researchers have conducted hundreds of experiments comparing various fertilizer treatments with manure applications and without such treatments. The plots became the center for wheat soil research in the region and provided constant data which helped farmers get maximum yield from their arid climates and naturally dry soils.

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