Citation

Huett D. O. , Gogel B. J. , Meyers N. M. , McConchie C. A. , McFadyen L. M. Morris S. C. (2001) Leaf nitrogen and phosphorus levels in macadamias in response to canopy position and light exposure, their potential as leaf-based shading indicators, and implications for diagnostic leaf sampling protocols. Crop and Pasture Science 52, 513-522.

https://doi.org/10.1071/AR00066