Appendix B. Percentage of phosphorus (P) concentration of foliage, fresh litter, and litter that has been decomposed for 91 days and for 12 plant species. A. WardleDavid BellinghamPeter J. I. BonnerKaren MulderChrista P. H. 2016 Percentage of phosphorus (P) concentration of foliage, fresh litter, and litter that has been decomposed for 91 days and for 12 plant species.