Ag Data Commons
2 files

Data from: Measured and simulated carbon dynamics in Midwestern US corn-soybean rotations

posted on 2024-02-13, 14:27 authored by Christian Dold, Ken M. Wacha, Tom J. Sauer, Jerry L. Hatfield, John H. Prueger

The dataset includes information on soil properties collected from two conventionally managed fields under corn-soybean rotation in October 2005 and October 2016, respectively. The fields are located in Story County, Central Iowa. 42 sampling locations per field and year were sampled within a 50 m × 50 m grid, and 1 to 2 samples per location were collected using a hydraulic soil sampler (d= 38.2 mm) from the 0 - 120 cm soil layer. The samples were analyzed to determine carbon and nitrogen concentration, and soil pH in five soil layers (0-15, 15-30, 30-60, 60-90, and 90-120 cm). Presented is the raw data per location (mean of duplicates) with which carbon and nitrogen content can be calculated with either the equivalent soil mass method or by using bulk density.

For more information about this dataset contact: Tom Sauer: Christian Dold:

Resources in this dataset:

  • Resource Title: Data Dictionary.

    File Name: data-dictionary_CD.csv

    Resource Description: Defines variables and their units for the data table, also provided as a separate sheet within xlsx file.

  • Resource Title: Soil Properties.

    File Name: Soil Chemical Analysis.xlsx


Data contact name

Sauer, Tom

Data contact email


Ag Data Commons

Temporal Extent Start Date


Temporal Extent End Date



  • Not specified

Geographic Coverage


Geographic location - description

Story County, Central Iowa

ISO Topic Category

  • environment
  • farming
  • geoscientificInformation

National Agricultural Library Thesaurus terms

carbon; Glycine max; Zea mays; corn; crop rotation; soybeans; data collection; Iowa; nitrogen content; soil pH; bulk density; soil carbon; computer simulation; subsurface soil layers

OMB Bureau Code

  • 005:18 - Agricultural Research Service

OMB Program Code

  • 005:040 - National Research

ARS National Program Number

  • 212
  • 216

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

Dold, Christian; Wacha, Ken M.; Sauer, Tom J.; Hatfield, Jerry L.; Prueger, John H. (2020). Data from: Measured and simulated carbon dynamics in Midwestern US corn-soybean rotations. Ag Data Commons.