This dataset consists of growth and yield data for each year when alfalfa was grown 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). Alfalfa was grown on two large, precision weighing lysimeters, each in the center of a 4.44 ha square field. The two square fields were themselves arranged with one directly north of and contiguous with the other. The two fields and lysimeters within each field were designated northeast (NE), and southeast (SE). Irrigation was by linear move sprinkler system in autumn 1995 when the alfalfa was planted through 1999. Irrigations 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.
The growth and yield data include height, leaf area index, growth stage, total above-ground biomass, leaf and stem biomass, and final yield. Data are from replicate samples in the field and non-destructive (except for 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.
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 alfalfa ET, comparisons with "tall crop" reference 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 for studies of reference ET methods.
- 1996 Bushland, TX, east alfalfa growth and yield dataxlsx
This dataset consists of growth and yield data the 1996 season when alfalfa...
MD5:Explore Data124.51 KB - 1997 Bushland, TX, east alfalfa growth and yield dataxlsx
This dataset consists of growth and yield data the 1997 season when alfalfa...
MD5:Explore Data44.82 KB - 1998 Bushland, TX, east alfalfa growth and yield dataxlsx
This dataset consists of growth and yield data the 1998 season when alfalfa...
MD5:Explore Data53.26 KB - 1999 Bushland, TX, east alfalfa growth and yield dataxlsx
This dataset consists of growth and yield data the 1999 season when alfalfa...
MD5:Explore Data85.26 KB
Field | Value |
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Tags | |
Parent Record | |
Modified | 2022-08-19 |
Release Date | 2022-04-20 |
Frequency | Irregularly |
Identifier | e91d46e1-d4e0-4c78-9c79-d797a00eb814 |
Spatial / Geographical Coverage Area | POLYGON ((-102.09906463948 35.191719970106, -102.07671433134 35.19121493622, -102.07678299485 35.1865853205, -102.07609634934 35.177044674547, -102.09913330298 35.177072738625)) |
Publisher | Ag Data Commons |
Spatial / Geographical Coverage Location | Bushland, Texas |
Temporal Coverage | January 1, 1995 to December 31, 1999 |
License | |
Contact Name | Evett, Steven R. |
Contact Email | |
Public Access Level | Public |
Program Code | 005:040 - Department of Agriculture - National Research |
Bureau Code | 005:18 - Agricultural Research Service |