INFLUENCE OF THE ALKALI SALTS UPON THE GROWH OF RICE PLANTS. 257 
(The number denotes the sum of weight in two pots). 
Salts 
Amount of salt added to 2000 grams of soil 
used 
I g. mol. wt. 
1 
^££. mol. wt. 
-— I- p" mol wt. 
^-Uet. mol. wt. 
— -1 ^ cr mol wt 
10 0° W L. 
200»" wc - 
— -k^tt- CT mnl wf 
iooqS- m01 - wc - 
I KJL. 
s?. 
g- 
g. 
g' 
e- 
Total yield 

3.75 
4.85 
5-45 
4.65 
4-45 
4.40 
4.20 
MgS0 4 
Seed 


1-45 
2.00 
1.75 
1 55 
i-55 
1-55 
Straw 

2.90 
2-55 
2.50 
2.25 
2.20 
2.05 
2.00 
Root 
0.85 
0.85 
0.95 
0.70 
0.70 
0.80 
0.65 
Total yield 


4.50 
4.90 
5 00 
4.70 
4.40 
4.20 
MgCl 2 


0 60 
i-35 
1.70 
1.70 
1-55 
1.55 
Straw 

— 
3-3o 
2.75 
2.60 
2.45 
2.15 
2.00 
0.60 
0.80 
0.70 
0.70 
0.70 
0.65 
Total yield 
— 

390 
4.50 
495 
4.40 
4.20 
CaCl 2 
Seed 

— 

0.20 
0.95 
i-75 
1.55 
1.55 

— 

300 
2.75 
2.50 
2.15 
2.00 
Root 
080 
0.80 
0.70 
0.70 
0.65 
Total yield 


4.10 
4.60 
4.70 
5.00 
4.70 
4.20 
Na 2 S04 


0.25 
1.05 
1.60 
1.80 
1.80 
1.55 
Straw 

— 
2.90 
2-75 
2.40 
2.40 
2.10 
2.00 
JS.OOI 
0.80 
0.80 
0.75 
0.80 
0.80 
0.65 
Total yield 


2.80 
4.50 
4.90 
4.40 
4.30 
4.20 
NaCl 


0.40 
1-35 
1.60 
1.55 
1-55 
1 55 
Straw 


2.00 
2.50 
2.65 
2.10 
2.00 
2.00 
JXOOl 
0 40 
07c 
0 6c 
• j 
x ' H .11 y iciu 
2.50 
4.30 
4.90 
4.90 
4.20 
Na 2 C0 3 
Seed 
0.65 
i-55 
1.60 
1.65 
1.55 
2.6o 
Straw 
1.45 
2.10 
2.65 
2.00 
Root 
0.40 
0.65 
0.65 
O.65 
0.65 
Total yield 
3-90 
4-55 
4.55 
4.60 
4.35 
4.20 
NaHC0 3 
Seed 
1. 10 
1.55 
1-55 
1.60 
L55 
i-55 
Straw 
2.20 
2.25 
2.25 
2.30 
2.10 
2.00 
Root 
0.60 
0.75 
0.75 
0.70 
0.70 
0.65 
