USDA-ARS Colorado Maize Water Productivity Dataset 2012-2013

Metadata Updated: May 2, 2019

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 (https://coagmet.colostate.edu/ ; 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

Access & Use Information

Public: This dataset is intended for public access and use. License: Creative Commons CCZero

Downloads & Resources

References

http://dx.doi.org/10.15482/USDA.ADC/1254006

Dates

Metadata Created Date October 12, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date October 12, 2018
Metadata Updated Date May 2, 2019
Publisher USDA NAL
Unique Identifier b432d393-f178-49d4-99df-ab48e30d65ad
Maintainer
Comas, Louise
Maintainer Email
Public Access Level public
Bureau Code 005:18
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Data Dictionary https://data.nal.usda.gov/dataset/usda-ars-colorado-maize-water-productivity-dataset-2012-2013/resource/1e3156fa-843b-4e5b-be97-48270de5c5a3
Harvest Object Id f0037cfc-a6dc-42fb-9569-0c0b139ca768
Harvest Source Id 50ca39af-9ddb-466d-8cf3-84d67a204346
Harvest Source Title USDA JSON
Language en
License https://creativecommons.org/publicdomain/zero/1.0/
Data Last Modified 2019-02-05
Program Code 005:037
Related Documents http://dx.doi.org/10.15482/USDA.ADC/1254006
Source Datajson Identifier True
Source Hash 16093e4d84f48a9006d1e4c86c744377c3fe504a
Source Schema Version 1.1
Spatial POLYGON ((-104.63916890323 40.446194880627, -104.63916890323 40.449232121566, -104.63449113071 40.449232121566, -104.63449113071 40.446194880627))

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