Kentucky bluegrass growth curves and nutritive values

Dataset describes Kentucky bluegrass production and height throughout two growing seasons in a rangeland system in the northern Great Plains. One year of sampling was during a drought year and one year had average precipitation. 2017 was a drought year and 2018 was an average precipitation year. Dataset also includes the nutritive value of Kentucky bluegrass throughout the season. Dataset can be used for modeling or for grazing planning. Some plots were mowed before the growing season to simulate early defoliation.

Sampling occurred at the USDA Northern Great Plains Research Laboratory near Mandan, ND (46.7673 N, 100.9184 W) The 6-hectare pasture is at an altitude of 502 m above sea level and is within the temperate steppe ecoregion of the United States. This region is characterized by long, cold winters and short, hot summers. Predominant soil types include Temvik-Wilton silt loams (fine-silty, mixed, superactive, frigid Typic and Pachic Haplustolls). The pasture is on a loamy ecological site (site ID 054XY030ND) and is managed as a native grassland with no fertilization or irrigation. The average soil texture is a clay loam (31% clay, 49% silt, and 20% sand). Average soil chemical characteristics were: pH (H2O) = 6.4; OM = 7.4% LOI; Na (ppm) = 8.25; K (ppm) = 362.4; Ca (ppm) = 1925.4; Mg (mmolc/dm3) = 417.6; CEC (me/100 g) = 17.5; S (ppm) = 8.3; Cu (ppm) = 0.74; Fe (ppm) = 33.7; Mn (ppm) = 18.5; and Zn (ppm) = 9.7.

Data can be used for planning of animal grazing or for modeling grazing systems in the northern Great Plains of the USA.

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Kentucky bluegrass growth curve dataset - dataset at Demo Unihtml
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Field	Value
Tags	Kentucky bluegrass grass productivity nutritive value growth curve poa pratensis NP216
Modified	2023-07-17
Release Date	2023-07-17
Frequency	Not Planned
Identifier	4c95bdb8-efe0-45a3-95bd-746f954518e5
Spatial / Geographical Coverage Area	POLYGON ((-100.91996467905 46.763822142185, -100.91996467905 46.771081596613, -100.91206579353 46.771081596613, -100.91206579353 46.763822142185))
Publisher	Digital Commons Data
Spatial / Geographical Coverage Location	USDA-ARS Northern Great Plains Research Laboratory, Mandan, ND
Temporal Coverage	May 1, 2017 to September 28, 2018
License	U.S. Public Domain
Contact Name	Toledo, David
Contact Email	david.toledo@usda.gov
Public Access Level	Public
Program Code	005:040 - Department of Agriculture - National Research
Bureau Code	005:18 - Agricultural Research Service

Extended Metadata:

Field	Value
Authors	Toledo, David (ORCID)
Peer Reviewed	No
Intended Use	Dataset can be used by land managers to plan grazing strategies or by researchers modeling animal nutrition in grassland ecosystems that contain Kentucky bluegrass (Poa pratensis).
Use Limitations	Grazing plots was not feasible so instead, defoliation on "mow" plots was done by mowing to simulate grazing.
Funding Sources	Agricultural Research Service 3064-21660-003-00D Natural Resources Conservation Service Agreement no. 67-3A75-17-472
Primary Article	Toledo, D., Swanson, K., Meehan, M., Dahlen, C., Christensen, R., & Asplin, D. (2023). Agronomic and forage nutritive responses of Kentucky bluegrass dominated pastures in the northern Great Plains. Grass and Forage Science, 78(2), 268-274. https://doi.org/10.1111/gfs.12610
Method Citation	Toledo, D., Swanson, K., Meehan, M., Dahlen, C., Christensen, R., & Asplin, D. (2023). Agronomic and forage nutritive responses of Kentucky bluegrass dominated pastures in the northern Great Plains. Grass and Forage Science, 78(2), 268-274. https://doi.org/10.1111/gfs.12610
Dataset DOI (digital object identifier)	10.17632/khksjzsbjm.2
Product Type	Dataset
Preferred Dataset Citation	Toledo, David (2023), “Kentucky bluegrass growth curves”, Demo Uni, V2, doi: 10.17632/khksjzsbjm.2

Field	Value
ISO Topic(s)	biota environment farming
State or Territory	North Dakota
National Agricultural Library Thesaurus Term	Poa pratensis growth curves nutritive value data collection growing season rangelands Great Plains region drought models grazing planning defoliation USDA North Dakota pastures altitude steppes ecoregions cold winter summer silt Haplustolls ecosystems irrigation soil texture clay loam soils clay sand pH sodium magnesium copper iron manganese zinc animals grazing systems animal nutrition mowing
Ag Data Commons Keywords	Agroecosystems & Environment Agroecosystems & Environment Soil Agroecosystems & Environment Management Agroecosystems & Environment Plant and animal Plants & Crops Crop production Plants & Crops Crop production Nutrient Management Plants & Crops Crop production Cropping system Agroecosystems & Environment Water Hydrology

Ag Data Commons migration begins October 18, 2023

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