8 io 
Journal of Agricultural Research 
Vol. XXIV, No. 9 
Table VI .—Analyses of roots 
Element. 
Expressed as dry matter. 
Expressed as ash. 
Tree i. 
Tree 2._ 
Tree 85. 
Tree I. | Tree 2. i Tree 85. 
N... 
Per cent. 
I. 01 
0. 01 
3 - 03 
0. 36 
0. 14 
0. 72 
0. 08 
Trace. 
0. 02 
0. 08 
0. 003 
Per cent. 
0. 98 
0. 13 
3. 08 
o- 33 
0. 10 
0. 71 
0. 09 
Trace. 
0. 02 
0. 13 
0. 006 
Per cent. 
0. 82 
0. 06 
2. 77 
0. 28 
0. 07 
0. 70 
0. 05 
Trace. 
0. 02 
0. 07 
0. 016 
Per cent. 
Per cent, j Per cent. 
S. 
Ash... 
K. 
II. 74 
4 - 33 
23- 77 
2. 69 
lo- 55 
3 - 15 
23.06 
2. 87 
10. 05 
2. 42 
25. 26 
1.74 
Na. 
Ca. 
Mg. 
Mn. 
Fe. 
0. 50 
2. 41 
0. 09 
38. 28 
2.51 
2. 75 
7 - 74 
0.49 
4. 10 
0. 17 
33 * 15 
4 - 47 
4. 68 
9 - 43 
0. 63 
2.35 
0. 59 
41. 17 
2. 38 
5-35 
5-55 
A 1 . 
Cl... 
CO3. 
S04. 
Si03. 
PO4. 
0. 08 
0. 14 
o- 15 
Total. 
96. 81 
96. 12 
97 - 49 
Table VII .—Analyses of rootlets calculated to a silica free basis 
Element. 
Expressed as dry 
matter. 
1 
Expressed as ash. 
Tree i. 
Tree 2. 
Tree i. 
1 
j Tree 2. 
N. 
2. 26 
0. 29 
0. 69 
11-93 
2. 04 
0. 12 
2. 36 
0. 36 
0. 02 
0. 04 
0. 36 
0. 12 
2. 22 
0. 27 
0. 56 
II. 19 
2. 38 
0. 09 
2. 01 
o- 34 
0.02 
0. 04 
0. 36 
0. 13 
j 
i 
S.:. 
P. 
Ash. 
K. 
17. 14 
I. 02 
19. 78 
3. 06 
0. 16 
o- 30 
3-03 i 
0. 89 
22.25 I 
8.89 1 
19.63 
21. 24 
0. 82 
17.98 
i 2. 98 
0. 19 
0. 28 
3. 22 
I. 12 
24. 00 
8. 46 
14. 62 
Na. 
Ca. 
Mg.. 
Mn.. 
Fe. 
A 1 . 
Cl. 
CO3. 
SO4. 
PO4... 
Total... 
96.17 
94. 9f 
In the analyses reported by Kelley and Cummins (6) the carbonates 
of the ash were not determined. At their suggestion these determina¬ 
tions have been included in the present studies. With rootlets it is 
practically impossible to remove all of the adhering sand, and conse¬ 
quently the results obtained for the rootlets (Table VII) have been 
calculated as percentages on a silica-free basis. The rootlets of tree 85 
(soil culture) could not be sufficiently freed from adhering soil to permit 
of satisfactory analyses. 
