To cite the 'manureshed' package in publications, use:

Akanbi O, Mandayam V, Gupta A, Flynn K, Yarus J, Barcelos E, French R (2025). manureshed: An Open-Source R Package for Scalable Temporal and Multi-Region Analysis of Integrated Agricultural-Municipal Nutrient Flows. R package version 0.1.0, https://osf.io/g39xa/.

Akanbi O, Gupta A, Mandayam V, Flynn K, Yarus J, Barcelos E, French R (2025). “Towards Circular Nutrient Economies: An Integrated Manureshed Framework for Agricultural and Municipal Resource Management.” Resources, Conservation and Recycling.

DATA SOURCES: NuGIS Agricultural Data (1987-2016): NuGIS (Nutrient Use Geographic Information System), The Fertilizer Institute (TFI) and Plant Nutrition Canada (PNC), https://nugis.tfi.org/tabular_data. EPA WWTP Discharge Data (2007-2016): U.S. Environmental Protection Agency (EPA), DMR Loading Tool, ECHO, https://echo.epa.gov/trends/loading-tool/water-pollution-search. For questions about data usage and attribution, contact NuGIS: nugis@tfi.org, Package: olatunde.akanbi@case.edu

Corresponding BibTeX entries:

  @Manual{,
    title = {manureshed: An Open-Source R Package for Scalable Temporal
      and Multi-Region Analysis of Integrated Agricultural-Municipal
      Nutrient Flows},
    author = {Olatunde D. Akanbi and Vibha Mandayam and Arthava Gupta
      and K. C. Flynn and Jeffrey M. Yarus and Erika I. Barcelos and
      Roger H. French},
    year = {2025},
    note = {R package version 0.1.0},
    url = {https://osf.io/g39xa/},
  }

  @Article{,
    title = {Towards Circular Nutrient Economies: An Integrated
      Manureshed Framework for Agricultural and Municipal Resource
      Management},
    author = {Olatunde D. Akanbi and Arthava Gupta and Vibha Mandayam
      and K. C. Flynn and Jeffrey M. Yarus and Erika I. Barcelos and
      Roger H. French},
    journal = {Resources, Conservation and Recycling},
    year = {2025},
  }