The Old Rotation at Auburn University

ALABAHA
THE OLD ROTATION
Established in 1896 by Professor J. F. Duggar.
the Old Rotation at Auburn University is: (1) the
oldest, continuous cotton experiment in the U.S.:
(2) the 3rd oldest continuous field crop experiment
in the U. S and (3) the 1st experiment to demon-
strate the benefits of rotating cotton with other
crops to improve yields and utilize nitrogen-restoring
legumes in a cotton-production system. It continues
to document the long-term effect of these rotations
In the same soil.
The Old Rotation consists of 13 plots on 1 acre
of land. Each plot is a different crop rotation of
cotton with corn, summer legumes, winter legumes,
and fertilizer nitrogen.
National Register of Historic Places, January 14. 1988.