11 
Kexults of applying fertilizers to both spring and fall crops, 
1909— SERIES B. 
Plat. 
Fertilizer. 
Yield per acre. 
Spring crop. 
Straw. Paddy. Straw. Paddy 
Fall crop. 
In- 
crease 
Total ! paddv 
yield per aii- 
per an- num 
num. 
Cost 
of fer- 
tilizer. 
Profit 
( + )or 
loss 
(-)per 
None 
Superphosphate, 225 pounds; 
potassium sulphate, 120 
pounds 
Ammonium sulphate, 150 
pounds; potassium sul- 
phate, 120 pounds 
Ammonium sulphate, 150 
pounds; superphosphate, 
225 pounds 
None 
Ammonium sulphate, 150 
pounds; superphosphate, 
225 pounds; potassium sul- 
phate, 120 pounds 
Ammonium sulphate, 300 
pounds; superphosphate, 
450 pounds; potassium sul- 
phate, 240 pounds 
Ammonium sulphate, 300 
pounds 
Ammonium sulphate, 150 
pounds 
None 
Lbs. 
1,300 
1,041 
1,722 
2,112 
1,267 
1,950 
2,762 
2,405 
1,950 
1,379 
Lbs. 
1,402 
1,625 
2,007 
2,128 
1,543 
2,242 
2,957 
2,730 
2,285 
1,528 
Lbs. 
2,242 
2,450 
2,450 
3,185 
2,340 
3,770 
3,542 
3,575 
3,250 
2.210 
Lbs. 
2,015 
3,2S2 
3,867 
4,582 
3,575 
4,582 
6,070 
5,200 
4,940 
3,055 
Lbs. 
7,019 
8,998 
10,046 
12,007 
8,725 
12,544 
14,331 
13,910 
12,425 
8,172 
Lbs. 
57 
1,024 
$11.10 
18.60 
1,850 16.50 
1,974 
3,177 
3,080 
2,375 
23.10 
46.20 
24.00 
12.00 
-$9. 68 
+ 7.00 
+30.00 
+26.25 
+33.22 
+53.00 
+47.37 
1910-SERIES B. 
None 
Superphosphate, 225 pounds; 
potassium sulphate, 120 
pounds 
Ammonium sulphate, 150 
pounds; potassium sul- 
phate, 120 pounds 
Ammonium sulphate, 150 
pounds; superphosphate, 
225 pounds 
None 
Ammonium sulphate, 150 
pounds; superphosphate, 
225 pounds; potassium sul- 
phate, 120 pounds 
Ammonium sulphate, 300 
pounds; superphosphate, 
450 pounds; potassium, sul- 
phate, 240 pounds 
Ammonium sulphate, 300 
pounds 
Ammonium sulphate, 150 
pounds 
None 
1,722 
1,755 
2,632 
2,405 
1.755 
2,307 
3,055 
3,185 
2,470 
1,722 
U,495 
1,430 
2,860 
2,860 
2,080 
2,892 
3,705 
3,900 
2,827 
U,690 
1,560 
2,145 
2,405 
2,470 
2,145 
2,665 
3,250 
3,055 
2,967 
1,495 
il,495 
2,470 
3,055 
3,445 
2,702 
3,835 
4,267 
4,322 
3,867 
12,015 
6,272 
7,800 
10,952 
11,180 
8,742 
11,699 
14,277 
14, 402 
12, 131 
6,922 

1,073 
1,463 
1,885 
3,130 
3,380 
1,852 
$11. 10 
18.60 
16.50 
23.10 
46.20 
24.00 
12.00 
-$11.10 
+ 8.22 
+ 20.07 
+ 24.02 
+ 32.05 
+ 60.50 
+ 34.30 
1 Injured by cold water flowing directly onto plat. Not included in averages. 
