Williams, M. R., P. Welikhe, J. H. Bos, K. W. King, M. Akland, D. J. Augustine, C. Baffaut, E. G. Beck, A. Bierer, D. Bosch, E. Boughton, C. Brandani, E. S. Brooks, A. R. Buda, M. Cavigelli, J. Faulkner, G. W. Feyereisen, A. Fortuna, J. Gamble, B. R. Hanrahan, M. Z. Hussain, M. M. Kohmann, J. L. Kovar, B. Lee, A. B. Leytem, M. A. Liebig, D. Line, M. Macrae, T. B. Moorman, D. Moriasi, N. Nelson, A. Ortega-Pieck, D. Osmond, O. Pisani, J. Ragosta, M. Reba, A. Saha, J. Sanchez, M. Silveira, D. R. Smith, S. Spiegal, H. Swain, J. Unrine, P. Webb, K. E. White, H. Wilson, and L. M. Yasarer. 2022. P-FLUX: A phosphorus budget dataset spanning diverse agricultural production systems in the United States and Canada. Journal of Environmental Quality 51:451-461.

Citable PDF link: https://lter.kbs.msu.edu/pub/4022

Quantifying spatial and temporal fluxes of phosphorus (P) within and among agricultural production systems is critical for sustaining agricultural production while minimizing environmental impacts. To better understand P fluxes in agricultural landscapes, P-FLUX, a detailed and harmonized dataset of P inputs, outputs, and budgets, as well as estimated uncertainties for each P flux and budget, was developed. Data were collected from 24 research sites and 61 production systems through the Long-term Agroecosystem Research (LTAR) network and partner organizations spanning 22 U.S. states and 2 Canadian provinces. The objectives of this paper are to (a) present and provide a description of the P-FLUX dataset, (b) provide summary analyses of the agricultural production systems included in the dataset and the variability in P inputs and outputs across systems, and © provide details for accessing the dataset, dataset limitations, and an example of future use. P-FLUX includes information on select site characteristics (area, soil series), crop rotation, P inputs (P application rate, source, timing, placement, P in irrigation water, atmospheric deposition), P outputs (crop removal, hydrologic losses), P budgets (agronomic budget, overall budget), uncertainties associated with each flux and budget, and data sources. Phosphorus fluxes and budgets vary across agricultural production systems and are useful resources to improve P use efficiency and develop management strategies to mitigate environmental impacts of agricultural systems. P-FLUX is available for download through the USDA Ag Data Commons (https://doi.org/10.15482/USDA.ADC/1523365).

DOI: 10.1002/jeq2.20351

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G5 G1 G8

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