Appendix A. Nitrogen-to-phosphorus (N:P) ratios in newly mature leaves, old leaves, stems, and roots for each of the fertilizer treatments. SchreegL. A. SantiagoL. S. WrightS. J. TurnerB. L. 2016 Nitrogen-to-phosphorus (N:P) ratios in newly mature leaves, old leaves, stems, and roots for each of the fertilizer treatments.