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    • Data from: Topographic position index predicts within-field yield variation in a dryland cereal production system

    Metadata Updated: July 11, 2025

    We investigated drivers of sub-field spatial variability in yield for 3 crops (hard red winter wheat, Triticum aestivum L. variety Langin; corn, Zea mays L.; and proso millet, Panicum milaceum L.) usings this multi-year dataset from a dryland research farm in northeastern Colorado, USA. The dataset spanned 18 2.6-4.3 ha management units collected over 4 years (2019-2022). The data includes high resolution topographic data collected via real-time kinematic GPS, densely sampled soil texture and chemical properties, and meteorological data from an on-site weather station.

    Access & Use Information

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

    Downloads & Resources

    Dates

    Metadata Created Date June 5, 2025
    Metadata Updated Date July 11, 2025
    Data Update Frequency R/P1Y

    Metadata Source

    Harvested from USDA JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 5, 2025
    Metadata Updated Date July 11, 2025
    Publisher Agricultural Research Service
    Maintainer
    Identifier 10.15482/USDA.ADC/28914434.v1
    Data Last Modified 2025-06-12
    Public Access Level public
    Data Update Frequency R/P1Y
    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
    Harvest Object Id 1b4c0ed8-1939-4eec-a221-edbf81e59ada
    Harvest Source Id d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
    Harvest Source Title USDA JSON
    License https://creativecommons.org/publicdomain/zero/1.0/
    Old Spatial {"type": "Polygon", "coordinates": -103.1482923836, 40.1494161291, -103.1479314553, 40.1626982725, -103.1199392655, 40.1622469882, -103.120305641, 40.1489650556, -103.1482923836, 40.1494161291}
    Program Code 005:040
    Source Datajson Identifier True
    Source Hash 5c9ac0137f0c19939c39f62ba4b6a9915c0a13a57df0369660008951ec761502
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -103.1482923836, 40.1494161291, -103.1479314553, 40.1626982725, -103.1199392655, 40.1622469882, -103.120305641, 40.1489650556, -103.1482923836, 40.1494161291}
    Temporal 2019-01-01/2022-12-31

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