The Storage and Use of Soil Moisture 43 
Table 14. — Effect of cultivation and weeds on soil moisture, 1912. 
PER CENT MOISTURE IN THE SOIL. 
Depth 
April 15 
May 3 
May 25 
July 4 
Soil disked 
Feet 
1 
2 
3 
4 
5 
6 
Average. . . . 
16.6 
15.9 
10.3 
19.4 
18.4 
17.7 
16.0 
16.6 
ICO 
16.2 
14.9 
13.5 
13.4 
13.0 
13.9 
13.6 
14.3 
18.5 
16.3 
13.7 
Soil not cultivated. 
Weeds cut with hoe. 
1 
2 
3 
4 
5 
6 
Average. . . . 
16.0 
14.7 
9.9 
17.1 
16.6 
14.9 
14.3 
ICO 
15.2 
14.5 
13.1 
12.4 
13.1 
12.0 
9.5 
8.6 
13.5 
16.2 
14.7 
11.5 
Soil not cultivated. 
Weeds growing. 
1 
V 2 
3 
4 
5 
6 
Average. . . . 
16.0 
14.5 
9.0 
16.5 
15.0 
9.6 
9.1 
8.3 
9.0 
14.5 
6.5 
6.5 
6.1 
7.0 
6.9 
13.2 
13.7 
8.8 
7.9 
Table 15. — Plowing versus disking, effect on soil moisture, J 907. 
PER CENT MOISTURE IN THE SOIL. 
Depth 
Sept. 2 
Sept. 4 
Sept. 6 
Sept. 10 
Oct. 9 
Soil plowed 
Feet 
1 
2 
3 
Average 
17.6 
5.9 
5.3 
17.1 
8.4 
6.1 
15.8 
9.1 
6.9 
15.9 
10.4 
6.9 
14.8 
11.1 
8.3 
9.6 
10.5 
10.6 
11.1 
11.4 
Soil disked 
1 
2 
3 
17.0 
5.9 
6.2 
17.4 
8.9 
6.2 
15.5 
6.7 
6.3 
14.8 
7.7 
6.7 
12.8 
6.8 
5.8 
9.7 
10.8 
9.5 
9.7 
8.5 
