@misc{indiciae65277a8f9e8e,
  title = {Root-zone acidity affects relative uptake of nitrate and ammonium from mixed nitrogen sources},
  author = {Vessey, J. K. and Henry, L. T. and Chaillou, S. and Raper, C. D. Jr and Raper CD, J. r.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/20040121801},
  note = {Source identifier: 20040121801}
}