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7 files

Growth and Yield Data for the Bushland, Texas, Soybean Datasets

posted on 2024-04-02, 21:29 authored by Steven EvettSteven Evett, Gary W. Marek, Karen S. Copeland, Terry A. Sr. Howell, Paul D. Colaizzi, David K. Brauer, Brice B. Ruthardt

This dataset consists of growth and yield data for each season when soybean [Glycine max (L.) Merr.] was grown for seed at the USDA-ARS Conservation and Production Laboratory (CPRL), Soil and Water Management Research Unit (SWMRU) research weather station, Bushland, Texas (Lat. 35.186714°, Long. -102.094189°, elevation 1170 m above MSL). In the 1994, 2003, 2004, and 2010 seasons, soybean was grown on two large, precision weighing lysimeters, each in the center of a 4.44 ha square field. In 2019, soybean was grown on four large, precision weighing lysimeters and their surrounding 4.4 ha fields. The square fields are themselves arranged in a larger square with four fields in four adjacent quadrants of the larger square. Fields and lysimeters within each field are thus designated northeast (NE), southeast (SE), northwest (NW), and southwest (SW). Soybean was grown on different combinations of fields in different years. Irrigation was by linear move sprinkler system in 1995, 2003, 2004, and 2010 although in 2010 only one irrigation was applied to establish the crop after which it was grown as a dryland crop. Irrigation protocols described as full were managed to replenish soil water used by the crop on a weekly or more frequent basis as determined by soil profile water content readings made with a neutron probe to 2.4-m depth in the field. Irrigation protocols described as deficit typically involved irrigations to establish the crop early in the season, followed by reduced or absent irrigations later in the season (typically in the later winter and spring). The growth and yield data include plant population density, height, plant row width, leaf area index, growth stage, total above-ground biomass, leaf and stem biomass, head mass (when present), kernel or seed number, and final yield. Data are from replicate samples in the field and non-destructive (except for final harvest) measurements on the weighing lysimeters. In most cases yield data are available from both manual sampling on replicate plots in each field and from machine harvest. Machine harvest yields are commonly smaller than hand harvest yields due to combine losses. These datasets originate from research aimed at determining crop water use (ET), crop coefficients for use in ET-based irrigation scheduling based on a reference ET, crop growth, yield, harvest index, and crop water productivity as affected by irrigation method, timing, amount (full or some degree of deficit), agronomic practices, cultivar, and weather. Prior publications have focused on soybean ET, crop coefficients, and crop water productivity. Crop coefficients have been used by ET networks. The data have utility for testing simulation models of crop ET, growth, and yield and have been used for testing, and calibrating models of ET that use satellite and/or weather data.

See the README for descriptions of each data file.

Resources in this dataset:

  • Resource Title: 1995 Bushland, TX, west soybean growth and yield data.

    File Name: 1995 West Soybean_Growth_and_Yield-V2.xlsx

  • Resource Title: 2003 Bushland, TX, east soybean growth and yield data.

    File Name: 2003 East Soybean_Growth_and_Yield-V2.xlsx

  • Resource Title: 2004 Bushland, TX, east soybean growth and yield data.

    File Name: 2004 East Soybean_Growth-and_Yield-V2.xlsx

  • Resource Title: 2019 Bushland, TX, east soybean growth and yield data.

    File Name: 2019 East Soybean_Growth_and_Yield-V2.xlsx

  • Resource Title: 2019 Bushland, TX, west soybean growth and yield data.

    File Name: 2019 West Soybean_Growth_and_Yield-V2.xlsx

  • Resource Title: 2010 Bushland, TX, west soybean growth and yield data.

    File Name: 2010 West_Soybean_Growth_and_Yield-V2.xlsx

  • Resource Title: README.

    File Name: README_Soybean_Growth_and_Yield.txt


USDA-ARS: 3090-13000-016-00D


Data contact name

Evett, Steven R.

Data contact email


Ag Data Commons

Intended use

These data may be used to test and calibrate models of plant growth, water use (ET), and yield, and may be used to develop crop coefficients for use with a reference evapotranspiration model to estimate crop water use. Care was taken to ensure that lysimeter ET data were representative of the 4.4 ha fields within which each lysimeter was centered. Therefore, satellite data with 100-m or smaller pixels may be suitable for use with the lysimeter data in testing and calibration of models based on satellite data.

Use limitations

The data pertain to the specific location, soil, climate, cultivar, and agronomic practices described in the data sets. Extrapolation to other climates, soils, cultivars, and practices should be done with care. Individual fields were square and somewhat larger than 210 m in width and length, so care should be used when combining satellite data with these data if satellite image pixels are comparatively large. Observations of air temperature and relative humidity, wind speed, and solar irradiance taken at the lysimeters should not be used as weather input for simulation models; weather data observed under standard conditions at the research weather station should be used as input to simulation models. Plant growth and yield data are from replicate plots in each of the four lysimeter fields. Examination of the data variance should be examined to determine in there are clear differences in data from different fields. Number of replicates and plot sizes may have changed between seasons but are given in the data files.

Temporal Extent Start Date


Temporal Extent End Date



  • irregular


  • Not specified

Geographic Coverage


ISO Topic Category

  • climatologyMeteorologyAtmosphere
  • farming
  • geoscientificInformation

National Agricultural Library Thesaurus terms

data collection; soybeans; Glycine max; Agricultural Research Service; Texas; lysimeters; arid lands; protocols; soil water; soil profiles; water content; neutron probes; winter; spring; population density; leaf area index; developmental stages; aboveground biomass; leaves; head; mechanical harvesting; crop coefficient; irrigation scheduling; harvest index; irrigation systems; plant cultural practices; cultivars; simulation models; satellites; meteorological data; crop yield

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

Evett, Steven R.; Marek, Gary W.; Copeland, Karen S.; Howell, Terry A. Sr.; Colaizzi, Paul D.; Brauer, David K.; Ruthardt, Brice B. (2023). Growth and Yield Data for the Bushland, Texas, Soybean Datasets. Ag Data Commons.