Tabled XIV .—Growth of plants in experiments II and VIII 
July is, 1921 
Assimilation of Nutrient Salts by Corn 
563 
Ratio 
of 
roots 
to 
tops. 
00 ro t» 0 \ P* Ov'O 
n to n to n 0 Oi 
ct tH' MO to Cl tl 
Percentage of total 
roots by weight. 
C 
flasks. 
fO 
fO 
d : 
fO 
B 
flasks. 
ro 
«- V 
M tt 
Pt PO 
c/i 
93 
vO 
fO 
A A 
rt O 
Average oven-dry 
weight per root. 
c 
flasks. 
Gni. 
0. 0342 
n 
S : 
B 
flasks. 
. 5 
S o 5 
U d 
00 L' 
to VO 
M 01 
O O 
A 
flasks. 
0 \ Q\ f 0 »0 
. l/o O »" >0 
J* PO M to V 
,5 0 0 0 0 
Oven-dry weight 
of roots. 
C 
flasks. 
00 00 • 
,00 M • 
§ ci pi • 
U : 
. 10 w 
* <?\ N • • 
B 
flasks. 
to eo . 
, 'O • 
S m m • 
: 
• Pt 10 ON 0 - 
• 00 lO^th 
• H H M n 
A 
flasks. 
t-t w 0 O Voo « 
, O VO V V t-« p< V 
S ro ci H H w N V V 
Number of roots. 
C 
flasks. 
T}- M . 
t> 4 - • 
• t M • * 
• \£) l'* • * 
B 
flasks. 
O 4^ * 
• tovO o» ro 
. NO vO CK O 
A 
flasks. 
uo vo p» 0 to >o ("O 
t>. in oo r- 00 0 
{A 
Aver¬ 
age 
oven- 
dry. 
m 00 to 
• N 0 ro 0 
S to N M to 
IJ ^ M « 
Weight of st; 
and leaves 
Oven- 
dry. 
lOftlOM 0 >0 IO tf 
.00 IOH 0\'0 M W v 
StOONt-IHMtNV 
(J to to M M Pt Pt 
Green. 
V O CTlOO M 0 H 0) 
r» i^dtoo'ooo m v t- 
R tow 0\ 0 t ^0 0 
(j v to « « 
Nutrient solution. 
C flasks. 
Complete(NPK 
present). 
None . 
NP lacking (K 
present). 
None . 
B flasks. 
Complete(NPK 
present). 
None . 
NK lacking (P 
present). 
|nPK lacking. . 
A flasks. 
lComplete(NPK 
/ present). 
|NPK lacking ... 
1 PK lacking (N 
/ present). 
)Complete(NPK 
j present). 
Plant 
No. 
CO O V n 0000 V 
H M ro V V *OvO 
OOOOOOOO 
+J+J+J V+J+J+JU 
H Ot MO to H 
h N »o v V *n 
