Ag Data Commons
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USDA-ARS Colorado Maize Water Productivity Dataset 2012-2013

posted on 2024-02-13, 13:06 authored by Louise Comas, Thomas Trout, Garrett Banks, Kendall DeJonge, HuiHui Zhang, Sean Gleason

The USDA-Agricultural Research Service carried out an experiment on water productivity in response to seasonal timing of irrigation of maize (Zea mays L.) at the Limited Irrigation Research Farm (LIRF) facility in northeastern Colorado (40°26’ N, 104°38’ W) starting in 2012. Twelve treatments involved different water availability targeted at specific growth-stages. This dataset includes data from the first two years, which were complete years with intact treatments. Data includes canopy growth and development (canopy height, canopy cover and LAI), irrigation, precipitation, and soil water storage measured periodically through the season; daily estimates of crop evapotranspiration; and seasonal measurement of crop water use, harvest index and crop yield. Hourly and daily weather data are also provided from the CoAgMET, Colorado’s network of meteorological information ( ; GLY04 station). Additional soil data can be found in a previous dataset (USDA-ARS Colorado Maize Water Productivity Dataset 2008-2011) also available from the Ag Data Commons. This previous dataset included six targeted treatments that were generally uniform through the season. This new dataset can be used to further validate and refine maize crop models.

The data are presented in a spreadsheet format in individual sheets within one workbook. The first sheet in the work book provides a list of data descriptions. Two sheets (one sheet for each of the two years) provide the hourly weather data, with the exception of the precipitation data, which is included in the sheet with daily data per treatment. The weather data is from a weather station on site. Another sheet provides plot level data (harvest index, yield, annual ET, maximum LAI, stand density, total aboveground biomass) taken annually by plot (four plots per treatment). Another sheet provides LAI measured four times over each season per plot. The final sheet provides daily data per treatment over each season, including data needed to compute daily water balance. This sheet has LAI, crop growth stage, plant height, estimated root depth, interpolated canopy cover, ET coefficients, precipitation, and estimated deep percolation, evaporation, and soil water deficit at four soil depths.

List of files: LIRF small plots map 2012-2013 LIRF maize annual_daily_hourly data 2012-2013

Resources in this dataset:

  • Resource Title: LIRF 2012-2013 Maize database.

    File Name: 2012-2013_Maize_Compiled database 06012018.xlsx

  • Resource Title: LIRF 2012-2013 Data Description.

    File Name: Data Description 06012018.xlsx

  • Resource Title: LIRF 2012-2013 Plot Map.

    File Name: Plot map 2012 2013.pdf

  • Resource Title: LIRF Data Dictionary.

    File Name: Data_Dictionary_Water_Prod_2012.csv




Data contact name

Comas, Louise

Data contact email


Ag Data Commons

Intended use

Primary use is to improve or validate agricultural crop (maize) models.

Use limitations

Limitations are noted in the dataset files. Data is from field/plot scale field research.

Temporal Extent Start Date


Temporal Extent End Date



  • irregular


  • Not specified

Geographic Coverage


Geographic location - description

N.E. of Greeley Colorado; 40°26’ N, 104°38’ W

ISO Topic Category

  • environment
  • farming

National Agricultural Library Thesaurus terms

irrigation scheduling; corn; irrigation; farms; Colorado; canopy; leaf area index; soil water storage; soil water; evapotranspiration; water utilization; harvest index; crop yield; meteorological data; soil; Agricultural Research Service; silver; crop models; stand density; aboveground biomass; developmental stages; plant height; evaporation; soil water deficit; soil depth; sustainable agriculture; monitoring; phenology; oils; crop management; plant growth; data collection; biomass production; field experimentation; Zea mays

OMB Bureau Code

  • 005:18 - Agricultural Research Service

OMB Program Code

  • 005:040 - National Research

ARS National Program Number

  • 211

Primary article PubAg Handle

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

Comas, Louise; Trout, Thomas; Banks, Garrett; DeJonge, Kendall; Zhang, HuiHui; Gleason, Sean (2018). USDA-ARS Colorado Maize Water Productivity Dataset 2012-2013. Ag Data Commons.