. 2021 Mar 12;10(3):535. doi: 10.3390/plants10030535
© 2021 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
| PFPFN = P/Nr, (kg dm kg N); |
| PFPFP = P/Pr, (kg dm kg P), |