Indiana Long-term Tillage and Rotation Experiment

This experiment has been added by the GLTEN Curators using existing published sources.
Objective
To determine the long-term yield potential of different tillage and crop rotation systems and associated changes in soil characteristics.
Data Access Statement
Don't know
Data license
Don't know
Data policy
Don't know
Organization
Purdue Agronomy Center for Research and Education
experimental research station
People

Site: Experiment site

Type
research station field
Location
Indiana
USA
Geographic location
40.4686, -87.0069
+−
© OpenStreetMap contributors
Elevation
215 Metres
Slope
2°
Visits permitted?
No
Management
The experiment area was systematically tile drained at 20-m intervals.
Soil description
Chalmers silty clay loam (a fine-silty, mixed, superactive, mesic Typic Endoaquoll) with inherently poor drainage.
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
soil organic matter 4 Percent

Design period: (1975—2014)

Design Type
Randomized complete block design
Description
Daily weather data is available from an automated weather station operated by Purdue University approximately 1.5km distant.
Design description
The experiment comprised a block design with four replications of 12 split-plots. Plots measured 9.75 x 47.72m.
Number of plots
48
Number of replicates
4
Number of harvests per year
1
Crops
CropYears grown
maize
soybeans
Crop Rotations
continuous corn
  • 1
    maize
corn-soybeans
  • 1
    maize
  • 2
    soybeans
continuous soybeans
  • 1
    soybeans
Factor
Factor name
Factor levels
tillage process
Conventional and minimum tillage plots had secondary tillage to 10cm depth
no-till
Applied to crop: All crops
Soil surface residues averaged 93%.
minimum tillage  (20 cm depth)
Applied to crop: All crops
Application frequency: annually in the Fall
Application method: chisel plough
Soil surface residues averaged 31%.
conventional tillage  (20-25 cm depth)
Applied to crop: All crops
Application frequency: annually in the Fall
Application method: mouldboard plough
Soil surface residues averaged 3%.
Measurements
VariableMaterialUnitsFrequencyScaleComment
grain yield traitAll cropsannually
soil pHSoil
plant available phosphorousSoil
cation exchange capacitySoil
soil organic carbonSoil
total soil nitrogenSoil

Related publications

  • Omonode, R.A., Smith, D.R., Gál, A. and Vyn, T.J. (2011), Soil Nitrous Oxide Emissions in Corn following Three Decades of Tillage and Rotation Treatments. Soil Sci. Soc. Am. J., 75: 152-163.
  • Hodde, W., Sesmero, J., Gramig, B., Vyn, T. and Doering, O. (2019), The Predicted Effect of Projected Climate Change on the Economics of Conservation Tillage. Agron. J., 111: 3130-3139.