EFFECT OF SOIL FACTORS OX WATER REQUIREMENT. 
43 
Table XXXI. — Effect of different amounts of nitrogen and sodium on the water require- 
ment of crops, according to Wilfarth and Wimmer — Continued. 
Crop and period. 
Tobacco: 
Apr. 6 ro Aug. 20, 
Apr. 21 to Sept. B 
Apr. 24 to Oct. 5, 
1899. 
Fertilizer per pot. 
Soil per pot. 
K 2 
Xa 2 
Sand, 3,760 grams; turf, 240 
grams; water, 1,000 grams. 
Sand, 4,445 grams; turf, 305 
grams; water, 1,200 grams. 
Sand, 4,445 grams: turf. 305 
grams; water, 1,200 grams; 
water increased Julv 13 to 
1,370 grams. 
Buckwheat: 
Apr. 23 to Julv 26, 
1900. 
Sand, 4,000 grams; water, 
700 grams. 
Mustard: 
Apr. 19 to Julv 26, 
1900. 
Sand, 2,500 grams: turf. 160 
grams; water, 66S grams. 
Chicorv: 
Apr. 28 to Nov. V, 
1900. 
Oats: 
Apr. 23 to Aug. 6, 
1900. 
Sand, 4,465 grams: turf, 285 
grams; water, 1,190 grams. 
Grams. 
1.410 
Grams. 
1.410 
2.585 
2.585 
.188 
.188 
2.790 
1.302 
1.457 
.0235 
.0235 
. 0235 
.620 
.0235 
.282 
.282 
.282 
.282 
.846 
.846 
.846 
.620 
. 620 

.620 
.047 
.047 
.047 
.564 
.564 
.564 
.620 
.047 
.047 
.376 
.376 
.564 
.564 
.0235 
.744 
.0235 
.0235 
.282 
1. 550 
.282 
.282 
.846 
1.550 
Sand, 4,000 grams; water, 
700 grams. 
.846 
3.290 
3.290 
3.290 
.047 
.047 
.047 
.1175 
.1175 
.376 
.376 
.376 
1.550 
Mean 
dry 
matter. 
Mean 
water 
require- 
ment. 
.620 
.620 
2.380 
2.380 
2.030 
3.500 
.560 
.500 
1.120 
2.520 
1.120 
1.120 
2.100 
2.520 
1.820 
1.820 
2.520 
.112 
.420 
.420 
.252 
.420 
.420 
.112 
.252 
.420 
.084 
.700 
.224 
.700 
.084 
.224 
.700 
.700 
.140 
1.680 
1.680 
.280 
1.680 
1.680 
1.680 
1.680 
.140 
.280 
1.680 
.084 
.420 
.420 
.224 
.420 
.420 
.420 
.420 
■ 
.224 
.420 
Grams. Grams. 
2.380 83.9 
2. 380 19. 8 
93.3 
87.9 
26.8 
29.3 
18.0 
20.5 
20.3 
29.4 
52.4 
57.2 
57.4 
55.4 
82.4 
80.6 
85.2 
6.5 
13.4 
11.6 
21.6 
4.2 
12.2 
29.1 
27.0 
14.5 
16.3 
23.2 
28.4 
52. 2 
49.7 
77.4 
77.7 
12.1 
30.0 
83.2 
7.9 
9.6 
12.9 
14.0 
18.8 
27.7 
8.8 
22. 3 
372 ±2 
322-5 
347 ±8 
358±5 
665±30 
556 ±12 
709 ±10 
669±20 
696 ±3 
492 ±23 
457 ±28 
372 ±8 
363 ±3 
82±24 
-'^=4 
302 ±3 
300±11 
996±83 
950±9 
642-29 
12.3 746 
12.0 575 = 4 
11.2 709±3 
19.2 554 = 25 
30.4 415 ±18 
1,133 ±179 
741±9 
659 ±.50 
1,193 ±8 
718=14 
500±8 
493 ±17 
698±68 
679 ±59 
512±81 
455 = 22 
331 ±33 
298±0 
254 ±12 
232 ±17 
790 ±55 
405 ±49 
217±8 
1,095 ±27 
1.017 = 26 
949 ±33 
813±16 
S06±0 
5S6±8 
688±10 
523 ±9 
94S±20 
615 ±2 
285 
