Precipitation during the growing season is generally inadequate for maximum crop yields due to frequent drought stress during the months of June, July, and August. Rainfall events can be erosive due to the high intensity of the storms that lead to excessive water and soil runoff.
Climate properties
Variable
Time period
Value (range)
Units
precipitation
845
millimeter
air temperature
9.9
degree Celsius
Design period: (1964—)
Design description
Plots measured 7.4 x 6.1 m
Number of replicates
3
Number of harvests per year
1
Crops
Crop
Years grown
maize
soybeans
Crop Rotations
continuous corn
1
maize
corn-soybean
1
maize
2
soybeans
Factor
Factor name
Factor levels
tillage process
no-till
No pre-planting tillage operations.
minimum tillage (20-25 cm depth)
Application frequency: annually in autumn
Application method: chisel plough
Soil not inverted by ploughing. Soil inverted by ploughing. Approximately 30% of crop residue is retained on the surface.
conventional tillage (20-25 cm depth)
Application frequency: annually in autumn
Application method: mouldboard plough
Soil inverted by ploughing. Approximately 100% of crop residue is incorporated into the soil
Measurements
Variable
Material
Units
Frequency
Scale
Comment
grain yield trait
All crops
soil properties
All crops
Related publications
Mestelan, S., Smeck, N., Sprunger, C., Dyck, A., & Dick, W. (2021). Four decades of continuously applied tillage or no-tillage on soil properties and soil morphology. Agrosyst Geosci Environ, 4:e20195.
Kumar, S., Kadono, A., Lal, R. and Dick, W. (2012), Long-Term Tillage and Crop Rotations for 47–49 Years Influences Hydrological Properties of Two Soils in Ohio. Soil Science Society of America Journal, 76: 2195-2207.