This experiment has been added by the GLTEN Curators using existing published sources.
The current objectives of Sanborn Field are to document soil changes, crop response, and nutrient balance under selected monoculture and crop rotations; demonstrate results of interactions that occur through differential management of the soil–plant–environment continuum; and properly archive soil and plant samples for future means of identifying effects of environmental changes.
Sanborn Field was initiated in late 1888 as the “Rotation Field” by Dean J. W. Sanborn on the campus of University of Missouri-Columbia to demonstrate the value of crop rotations and manure in grain crop and forage production. One of the most significant discoveries from Sanborn Field was the isolation of the fungus Streptomyces aureofaciens, which produced one of first generation antibiotics, aureomycin. The field was designated a National Historical Landmark in 1965.
Upchurch et al., (1985) and Miles RJ. & Brown JR. (2011) give detailed descriptions of treatment changes and crop rotations for plots over time.
The Field consists of 44 separate plots with each plot's area (except Plot 24) consisting of approximately 0.29 ha and measuring 30.55 by 9.42 m. Plots numbered 1 to 7 and 9 to 39 are managed in ongoing historic monoculture or rotation crop systems. Plots 40 to 44 are used for other research, teaching, and demonstration projects. Plot 45 was planted to native warm season grass in 1990 to assess carbon sequestration. Treatments are not replicated.