A NEW THREE-SALT NUTRIENT SOLUTION 
345 
Table 3 
Partial volume concentrations of the various atoms and atomic groups {ions) in the 
three nutrient solutions, IR5C2, IIIR6C1, and IIIR8C1, all three having an osmotic 
value of about i.ys atmospheres. 
ion (or Atom) 
oolution 
Partial Vol. -ionic (or Vol. -atomic) Concentration* 
Absolute 
Relative to 
K of Same Solution 'Same Ion, Etc., of IR5C2 
K 
1R5C2 
.0180 
.100 
1. 00 
111 rvuv_ 1 
.0216 
.100 
1.20 
IIIR8C1 
.0288 
.100 
1.60 
Ca . . . . 
IR5C2 
.0052 
.289 
1. 00 
IIIR6C1 
.0026 
.120 
0.50 
IIIR8C1 
.0026 
•903 
0.50 
Mg 
IR5C2 
.0150 
.833 
1. 00 
IIIR6C1 
XXX XVV^V_^ X 
.0150 
.694 
1. 00 
IIIR8CI 
. .0050 
•174 
0.33 
bU4 
1R5L2 
.0150 
.833 
1. 00 
IIIR6CI 
.0150 
.694 
1. 00 
IIIR8CI 
.0050 
174 
0.33 
H0PO4 
IR5C2 
.0180 
.100 
1. 00 
IIIR6CI 
.0052 
.240 
2.89 
IIIR8CI 
.0052 
.180 
2.89 
NO3 
IR5C2 
.0104 
.578 
1. 00 
IIIR6CI 
.0216 
.100 
2.08 
IIIR8CI 
.0288 
.100 
2.77 
PO4 
IR5C2 
.0180 
.100 
1. 00 
IIIR6CI 
.0052 
.216 
2.89. 
IIIR8CI 
.0052 
.180 
2.89 
H 
IR5C2 
.0360 
.200 
1. 00 
IIIR6CI 
.0104 
.481 
2.88 
IIIR8CI 
.0104 
.361 
2.88 
S 
IR5C2 
.0150 
.833 
1. 00 
IIIR6CI 
.0150 
.694 
1. 00 
IIIR8CI 
.005c 
.174 
0.33 
N 
IR5C2 
.0104 
.578 
1. 00 
IIIR6CI 
.0216 
.100 
2.08 
IIIR8CI 
.0288 
.100 
2.77 
* This refers to the atomic group or atom, whether actually separated from the 
molecule or not; degree of actual ionization is not here considered. 
phate are in every case much lower in our best solution than they are 
in Shive's. Nevertheless, both solutions are excellent for the growth 
of young wheat plants. As our quantitative and critical knowledge of 
the relations between nutrient solutions and plant growth is increased, 
it becomes more and more strongly suggested that it is not atomic, nor 
