2023 article
Current status of US soil test phosphorus and potassium recommendations and analytical methods
Lyons, S. E., Clark, J. D., Osmond, D. L., Parvej, M. D. R., Pearce, A. W., Slaton, N. A., & Spargo, J. T. (2023, April 27). SOIL SCIENCE SOCIETY OF AMERICA JOURNAL.
Abstract