Stady on the Ash Metabolism in Garden and Park Trees

Abstract

In this report, the deposition of mineral element in leaves of park and garden trees ware quantitatively determined by the spectrochemical analysis. It is concerned with evaluation of critical problems relating to the mineral element economy of trees.
Sample trees are shown in Table I; fifteen kinds in all, that is five kinds from each of coniferous, ever green and deciduous brode leaves trees, and the number of sample trees is three in each kinds.
In this experiment we determined nine elements in the mineral constituents of ash in park and garden tree-leaves (Table 4) and the seasonal variation of KUROMATHU.(Pinus Thunbergii Parl.) leaves (Table 5).
The author is indebted to many co-investigators and colleagues but counsel from Dr. A. OKAZAKI (Prof. of KYOTO UNIVERSITY) is gratefully acknowleged.