16 , B Espino: Salt Requirements of Young Rice Plants 505 
Table 11. — Green weight of tops (six plants), actual values, from series 
with 4-salt solution type A, for culture, period June 19 to July 9. 
Solution No. 
Total concen- 
tration 0. 0008 
gram-molecule 
per liter, or 
0. 04 atmos- 
phere (series 
14). 
Total concen- 
tration 0. 0016 
gram- molecule 
per liter, or 
0.08 atmos- 
phere (series 
16). 
Total concen- 
tration 0.0038 
gram-molecule | 
per liter, or 0.2 
atmosphere 
(series 19). 
Total concen- 
tration 0. 0077 
gram-molecule 
per liter, or 0. 4 
atmosphere 
(series 20). 
TIRISI — 
grams. 
1.24 
grams. 
HI. 78 
grams. 
HI. 68 
grams. 
H1.39 
S2 
1.22 
HI. 69 
1.42 
HI. 12 
sa 
1.23 
1. 51 
1.36 
1.00 
S4 
1.19 
1.45 
1.29 
0.85 
SB 
l.OOL ^ 
1.27 
1.07 
0. 84 
R2S1 
1.20 j 
HI. 56 
1.43 
HI. 12 
S2 
HI. 41 
1.31 
1.35 
H 1. 24 
S3 
1.28 
1.35 
1.33 
0.96 
S4 
1.27 
1. 2BL 
1.35 
0.91 
R3S1 
1. 24 
1.47 
H1.46 
HI. 43 
S2 
1.23 
1.47 
HI. 53 
HI. 27 
.S3 
1.28 
1.32 
HI. 57 
0.97 
R4S1 
1.26 
1.37 
HI. 65 
HI. 26 
S2 
HI. 36 
1. 28 
1.45 
1.02 
R5S1 
1.16L 
1.37 
1.14 
0.86 
T2R1S1 
1.22 
1. 45 
HI. 55 
H 1. 17 
S2 
1. 12 L 
HI. 61 
1.06 
1.02 
S3 — - 
l.llL 
1.30 
1. OIL 
0.92 
S4 
1.02L 
1. 28 
0. 82 L 
0.78L 
R2S1 
1. 19 
1.48 
1.39 
0.87 
S2 
HI. 43 
HI. 80 
HI. 58 
1.02 
S3 
1.18L 
1.02L 
1.13 
0. 79 L 
R3S1 
HI. 40 
1.32 
1. 04 L 
HI. 08 
S2 
1.3B 
1.42 
1. 18 
0. 96 
R4S1 
1.28 
1.42 
1.31 
0.82 
T3R1S1 - 
1.27 
HI. 52 
1.02L 
0.99 
S2 
HI. 38 
1.30 
1.10 
I 0.93 
S3 
1. 15 L 
1.21L 
0.94L 
' 0. 45 L 
R2S1 
HI. 42 
HI. 55 
1.13 
1 1.06 
S2 
1.29 
1.09L 
1.06 
0.72L 
R3S1 
HI. 54 
1.44 
1.14 
0. 76 L 
1 T4R1S1 
1. 16 L 
1. 14 L 
1.26 
0.82 
1 S2._ 
1. 11 L 
1.05L 
0.75L 
0.76L 
1.35 
1.23L 
1. 10 
0.57L 
1 T6R1S1 
HI. 40 
1.21L 
0.84L 
0. 75 L 
concentration, no high value occurs for any set of salt proportions 
in which monopotassium phosphate makes up more than two- 
eighths of the total molecular concentration. For the lowest 
total concentration this salt may make up five-eighths of the 
total and a high green-weight value may be produced. 
Furthermore, low values shown in the lower two or three 
triangles of the diagram correspond to relatively low partial 
concentration of magnesium sulphate, and to high ones of cal 
