Marsden Long-Term Rotation Study

This experiment has been added by the GLTEN Curators using existing published sources.
Objective
To investigate how cropping system diversification and crop-livestock integration affect productivity, profitability, and environmental quality.
Description
Marsden Long-Term Rotation Study is a long-term investigation of how cropping system diversification and crop-livestock integration affect sustainability. The study compares three systems: a 2-year corn/soybean rotation, a 3-year corn/soybean/oat + red clover rotation, and a 4-year corn/soybean/oat + alfalfa/alfalfa rotation. The 3-year and 4-year systems have periodically received cattle manure.
Data Access Statement
Don't know
Data license
Don't know
Data policy
Don't know
Organizations
Iowa State University Marsden Farm
experimental research station
College of Agriculture and Life Sciences, Iowa State University
research organisation
USDA Agriculture and Food Research Initiative
funding agency
Iowa Soybean Association
funding agency
Leopold Center for Sustainable Agriculture
funding agency
People
Dr Matt Liebman
principal investigator
Iowa State University
Department of Agronomy
Matt Woods
experiment manager
Iowa State University
Department of Agronomy

Site: Marsden Farm

Type
research farm
Location
Boone
Iowa
United States
Geographic location
42.0137876560679, -93.7842069704999
© OpenStreetMap contributors
Elevation
335 Metres
Visits permitted?
No
History
At least 20 years with a corn-soybean rotation receiving conventional fertilizer and herbicide inputs.
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
silt content 38.5 Percent
sand content 35.2 Percent
clay content 26.4 Percent
soil pH 7.2
soil organic carbon 28 gram per kilogram
soil carbon to nitrogen ratio 12.7
Climatic type
temperate humid continental climate
Climate properties
VariableTime periodValue (range)Units
precipitation 1981 – 844 millimeter
air temperature 1981 – 9.1

Design period: (2001—)

Crops
CropYears grown
soybeans
maize
red clover
alfalfa
oats
Crop Rotations
2 year rotation
  • 1
    maize
    corn
  • 2
    soybeans
3 year rotation
  • 1
    maize
  • 2
    soybeans
  • 3
    oats
    red clover
4 year rotation
  • 1
    maize
  • 2
    soybeans
  • 3
    oats
    alfalfa
  • 4
    alfalfa
Measurements
VariableMaterialUnitsFrequencyScaleComment
grain yield traitNot specified
economic dataNot specified

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