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1987 West Sorghum Calendar.xlsx (17.78 kB)
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1988 West Sorghum Calendar.xlsx (17.88 kB)
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2004 West Cot.-Sorg. Calendar_1.xlsx (19.08 kB)
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2005 East Sorghum Calendar.xlsx (17.52 kB)
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2006 East Forage Corn & Sorghum Calendar.xlsx (19.61 kB)
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2006 West Sorghum Clump Study Calendar.xlsx (18.6 kB)
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2007 East Forage Corn & Sorghum Calendar.xlsx (18.51 kB)
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2007 West Sorghum Clump Study Calendar.xlsx (21.43 kB)
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2014 East Sorghum Calendar.xlsx (17.77 kB)
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2014 West Sorghum Calendar.xlsx (16.71 kB)
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2015 East Sorghum Calendar.xlsx (18.16 kB)
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2015 West Sorghum Calendar.xlsx (18.51 kB)
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Sorghum_Agronomic_Calendar_README_0.txt (33.98 kB)
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19 files

Agronomic Calendars for the Bushland, Texas Sorghum Datasets

dataset
posted on 2024-08-13, 20:46 authored by Steven R. EvettSteven R. Evett, Gary W. Marek, Karen S. Copeland, Terry A. Sr. Howell, Paul D. Colaizzi, David K. Brauer, Brice B. Ruthardt

This dataset consists of agronomic calendars for each growing season (year) when sorghum [Sorghum bicolor (L.)] was grown for grain or forage 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). Sorghum was grown in 1987, 1988, 1991, 1993, 1997 through 1999, 2003 through 2007, 2014, and 2015. Depending on experimental objectives, sorghum was grown on one, two, or four large, precision weighing lysimeters, each in the center of a 4.44 ha square field. The four fields were contiguous. The fields were designated northeast (NE), southeast (SE), northwest (NW), and southwest (SW), and were themselves arranged in a larger square with the fields in four adjacent quadrants of the larger square. In 2003 and 2004, cotton was grown on only one large weighing lysimeter in rotation with sorghum. In 2015, the NE and SE fields were irrigated with subsurface drip lines and the NW and SW fields were irrigated with a linear move sprinkler. Irrigation was by linear move sprinkler system in 1987 through 2007. Sorghum was sometimes grown as a dryland crop, sometimes as a fully irrigated crop, and sometimes as a deficit irrigated crop. Irrigations designated 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. Irrigations designated as deficit typically involved full irrigation to establish the crop. A crop calendar for each season lists by date the pertinent agronomic and maintenance operations (e.g., planting, thinning, fertilization, pesticide application, lysimeter maintenance, harvest). For each season there is one crop calendar for each two lysimeters (NE and SE, and/or NW and SW). 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 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.

Funding

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

History

Data contact name

Evett, Steven R.

Data contact email

steve.evett@usda.gov

Publisher

Ag Data Commons

Intended use

These data may be used to test and calibrate models of sorghum 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 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.

Temporal Extent Start Date

1987-01-01

Temporal Extent End Date

2015-12-31

Frequency

  • irregular

Theme

  • Not specified

Geographic Coverage

{"type":"FeatureCollection","features":[{"geometry":{"type":"Polygon","coordinates":[[[-102.09906463948,35.191719970106],[-102.07671433134,35.19121493622],[-102.07678299485,35.1865853205],[-102.07609634934,35.177044674547],[-102.09913330298,35.177072738625],[-102.09906463948,35.191719970106]]]},"type":"Feature","properties":{}}]}

Geographic location - description

USDA-ARS Conservation and Production Laboratory (CPRL), Soil and Water Management Research Unit (SWMRU) research weather station, Bushland, Texas

ISO Topic Category

  • climatologyMeteorologyAtmosphere
  • farming
  • geoscientificInformation

National Agricultural Library Thesaurus terms

data collection; growing season; Agricultural Research Service; Texas; lysimeters; microirrigation; arid lands; irrigation rates; irrigated farming; deficit irrigation; soil water; soil profiles; water content; neutron probes; planting; pesticide application; crop coefficient; irrigation scheduling; harvest index; cultivars; simulation models; satellites; meteorological data; Sorghum bicolor; forage; evapotranspiration; grain sorghum; cotton

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). Agronomic Calendars for the Bushland, Texas Sorghum Datasets. Ag Data Commons. https://doi.org/10.15482/USDA.ADC/1529414