TabL^ 1.--Chlorosis of rice on a calcareous soil as influenced by fertilization with sodium nitrate and ammonium sulphate 
SPRAYED WITH FERROUS SULPHATE 
626 
Journal of Agricultural Research 
Vol. XXIV, No 7 
Appearance of plants 
when cut. 
Yellow spotted with dark 
green. 
Do. 
Dark green. 
Do. 
t Light green spotted with 
dark green. 
Do. 
Dark green. 
Weights of 
harvested 
plants. 
Mois¬ 
ture- 
free. 
Gm. 
24.9 
23. 6 
to 
H 
10 ^ 
40 
a 
V 
00 CH 
<N C* 
0 
CH 
0 
0 
tj- 
CO 
4 
a> 
Wl 
ro Os 
g « M 
<N 
tN. c* 
0 
•0 
CH 
0 00 
M IH 
4 
H 
1 C--V 
M 
Analysis of solutions. 
At harvest. 
Parts per million of 
nitrogen present as— 
M 0 
d 
« 1 
0 M 
H 
1 H 0 
H 
M H 
M 
0 
12; 
« H 
6 
CH 1 
0 0 
0 
1 0 0 
0 
1 W Cl 
Cl 
d 
c8 
0 vO 
CO 1 
1 0 0 
0 
0 0 
0 
Hydro¬ 
gen-ion 
con¬ 
centra¬ 
tions. 
w 
W q6 
Ah 
00 
1 
t'.'O 
1 
1 0\ M 
I 00 
0 
00 
M 0 
06 
0 
00 
At planting. 
Parts per million of 
nitrogen present as— 
d 
■ 
•^00 
C^ W 
H 1 
« I 
Cl vO 
0 
CO 'O 
M 
0\ 
0 
Iz: 
\Q t>. 
d 
^ 1 
0 0 
0 1 
W W 
4 
M 
0 0 
0 
CO 
0 
Iz; 
S’ S 
« CH 
1 
\n 1 
C 4 1 
0 0 
0 
Tf* CO 
4 VO 
M W 
10 1 
M 1 
0 CH 
M 
Hydro¬ 
gen-ion 
con- i 
centra- 
tions. 
vO 00 
a 
Ah 
1 
»^>o 
^ 1 
0 'O 
'O 
I 
00 
00 
Nitrogen added as — 
d 
w 
g. 
Gm. 
2 
2 
H M 
d 
cd 
Cl Cl I • 
1 : : : : 
M M 
in 
Pot No. 
Average. 
3 . 
4 . 
Average. 
6. 
Average. 
7 . 
8 . 
Average. 
