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7 DEC JAN FEB
ates.
~
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=
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that time. The count data for “Ca after
“emical separation did not show significant
POO RYRPMS UE oe OK! 9
. J. P. Wiruerspoon, Jr., Ecol. Monog. 34, 403
&
“ern of §Rb from the surface soil during the
k. of 1963 (Fig. 4}.
The uptake data are presented in Fig. 6. The
*? appeared in the trees within a week alter
weacation. The uptake during the spring
Favn was about ten times that for the fall
ruc. The uptake of ®*Rb was much slower
wit was significant about a month after appli‘4m to the soil. The fall application of Rb
tus not appear in the foliage samples. The
uzung factor is most likely to be located in the
xx system, because the phosphorus uptake indi‘aed a sufficient biological activity of the trees
1369
fir trees of ®§Rb
UNTER
UNITY,
sly
PEY
os UVES
:
.
UES
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