40 Research Bulletin No. 5 
Table 12. — Effect of disking after the binder on soil moisture. 
PER CENT MOISTURE IN THE SOIL. 
Depth 
1907 
1908 
July 11 
Aug. 24 
April 23 
May 11 
June 13 
July 2 
July 10 
Soil disked 
Feet 
1 
2 
3 
Average. . . . 
12.2 
6.3 
6.6 
9.0 
7.8 
7.2 
12.3 
9.0 
8.8 
18.4 
10.3 
9.7 
22.2 
12.0 
11.7 
18.4 
16.6 
13.2 
16.3 
15.0 
13.7 
8.4 
8.0 
10.0 
12.8 
15.3 
16.1 
15.0 
Not disked 
1 
2 
3 
Average. . . . 
11.6 
6.2 
6.2 
6.1 
5.6 
6.1 
11.7 
9.6 
10.3 
17.0 
9.6 
10.3 
20.7 
12.9 
9.2 
17.1 
16.8 
12.4 
13.9 
13.9 
12.2 
8.0 
5.9 
10.2 
12.3 
14.3 
15.4 
13.3 
Depth 
1911 
1912 
Aug. 5 
Aug. 21 
Sept. 11 
Sept. 23 
Oct. 20 
July 31 
Sept. 18 
Soil disked 
Feet 
1 
2 
3 
Average. . . . 
10.1 
7.0 
7.1 
10.3 
7.0 
6.7 
11.3 
7.2 
6.9 
12.1 
8.9 
7.3 
16.1 
13.1 
7.2 
7.9 
7.0 
7.2 
14.2 
7.7 
7.7 
8.1 
8.0 
8.5 
9.4 
12.1 
7.4 
9.9 
Not disked 
1 
2 
3 
Average. . . . 
10.5 
6.8 
6.9 
8.7 
6.9 
6.9 
6.4 
6.7 
6.7 
7.1 
6.8 
6.9 
15.5 
6.6 
7.2 
9.2 
6.9 
7.3 
13.9 
7.9 
7.9 
8.1 
7.5 
6.6 
6.9 
9.8 
7.8 
9.9 
In Table 12 are given the results of four tests in disking small 
grain stubble after the binder. Tn 1907 we note that with the 
close of the test, August 24, there was 3 per cent more water in 
the first foot of soil which had been disked than where the soil 
was not disked. There is also an increase in the second foot. 
During this interval of time more than two inches of water fell, 
30 per cent of which was saved by the disking, while in the other 
field not only was all this water lost but the soil was actually 
drier at the end than at the beginning of the test. The weeds, 
which are usually found on the small grain fields, had taken this 
water. This difference in moisture content was sufficient to put 
the portion which had been disked in fair condition to plow, 
while the other was entirely too dry. 
