@misc{indiciaed220e91bf3c7,
  title = {Comparison of methods for nutrient measurement in calcareous soils: Ion-exchange resin bag, capsule, membrane, and chemical extractions},
  author = {S. K. Sherrod and J. Belnap and M. E. Miller},
  year = {2002},
  doi = {10.1097/00010694-200210000-00005},
  url = {https://pubs.usgs.gov/publication/70024259},
  note = {Source identifier: 70024259}
}