176 
Journal of Agricultural Research 
Vol. V, No. 4 
Table II .—Records of soil temperatures under different cultural methods f May , 1913, 
to May , 1915 —Continued 
plot c: straw mulch— continued 
Week 
ending— 
Mini¬ 
mum. 
Maxi¬ 
mum. 
Week 
ending— 
Mini¬ 
mum. 
Maxi¬ 
mum. 
Week 
ending— 
Mini¬ 
mum. 
Maxi¬ 
mum. 
°F. 
°F. 
°F. 
°F. 
°F. • 
•F. 
Aug. 10 
65. O 
67- 5 
Nov. 9 
51.0 
52. s 
Feb. 8 
35 *o 
37-0 
17 
65.0 
68.5 
16 
48. 5 
52.0 
35 *o 
39 -o 
24 
66. 0 
68. 5 
23 
40. O 
50. 0 
22 
36.0 
38.5 
31 
65.0 
68. 0 
30 
41. O 
45 -o 
Mar. 1 
36.0 
40. 0 
Sept. 7 
64. 0 
67- 5 
Dec. 7 
45 - 5 
47 - 5 
8 
36.0 
37 *o 
14 
61. 5 
66. 0 
14 
43 - 0 
46. 0 
36.0 
37 *o 
21 
61. 5 
64. 0 
21 
38.0 
43 * 0 
22 
37 *o 
38.0 
28 
59 -o 
65.0 
28 
36.0 
38.5 
29 
36.5 
38.0 
Oct. 5 
58. 0 
60. 0 
Jan. 4 
35 -o 
37 *o 
Apr. 5 
35*5 
37 *o 
12 
60. 0 
62. 5 
II 
34 - 0 
36.0 
12 
38.0 
4 S*o 
19 
58.0 
60. 0 
18 
3 S-o 
36.0 
19 
42. 0 
45 *o 
26 
5 i-o 
56.0 
35 -o 
36-5 
26 
4 S*o 
53 *o 
Nov. 2 
56.0 
58.0 
Feb. 1 
35 -o 
36. 0 
May 3 
52.0 
55 *o 
plot d: grass land 
May 5 
44- S 
57- 5 i 
Jan. 5 
36.0 
37*o 
Sept. 7 
63.0 
70. 0 
12 
48. S 
59*o 
12 
35* 5 
37*o 
14 
60. 0 
67* 5 
*9 
49*o 
62. 0 
*9 
33* 5 
36.5 
21 
60. 0 
66. 0 
26 
53*o 
62. 5 
26 
33*o 
36- 5 
28 
56. 0 
66. 5 
June 2 
53* 5 
66. 0 
Feb. 2 
35*o 
44.0 
Oct. 5 
55*o 
60. 0 
9 
58.0 
67. 0 
9 
35*o 
39* 5 
12 
58. 0 
62. 5 
16 
57*o 
69. 0 
16 
34*o 
36. 0 
19 
56. 0 
58.0 
23 
66. 0 
74.0 
23 
32. 5 
35*o 
26 
54*o 
56.5 
3° 
65. 0 
76-5 
Mar. 2 
32.0 
35*o 
Nov. 2 
46. 0 
53*o 
July 7 
70. 0 
78-5 
9 
32. 0 
34*o 
9 
47. 0 
51.0 
14 
67-5 
76. 0 
16 
3 1 * 0 
34*o 
16 
44.0 
50. 0 
21 
23 
33*o 
34*o 
23 
37.0 
47*o 
28 
3° 
22 . O 
46. 0 
30 
35. 0 
44. 0 
Aug. 4 
69. 0 
. 
76. 0 
Apr. 6 
40. 0 
48. 0 
( O 
Dec. 7 
44.0 
47*5 
II 
67. 0 
74*5 
13 
37-5 
44*0 
14 
40. 0 
44.0 
18 
68.0 
74.0 
20 
41. O 
53*o 
21 
35-S 
41. 0 
25 
64. 0 
73*5 
27 
44.0 
57-o 
28 
34* 5 
36. s 
Sept. 1 
62. 5 
68.5 
May 4 
So. 5 
6l. O 
Jan. 4 
35*o 
37*o 
8 
64. 0 
69-5 
11 
52.0 
58.5 
II 
32. 5 
35*o 
15 
57-S 
69. 0 
18 
53*o 
60. 5 
18 
33*o 
34*o 
22 
55- 5 
62. 5 
25 
54.0 
62. 0 
_ 25 
33- S 
35- 5 
29 
51.0 
57*o 
June 1 
60. 5 
67. 0 
Feb. 1 
33*o 
35*o 
Oct. 6 
52.5 
59- 5 
8 
60. 5 
69. 0 
8 
33*o 
35*o 
13 
52.0 
60. 0 
65.0 
71. 0 
*5 
32. 5 
38*5 
20 
49.0 
56.0 
22 
63-5 
70. 0 
22 
33* 0 
38.0 
27 
43*o 
47*o 
29 
67-5 
73*5 
Mar. 1 
35*o, 
41..0 
Nov. 10 
41*5 
47.0 
July 6 
63* 5 
72. 0 
8 
33*o 
35*o 
17 
39*o 
49.0 
*3 
68.0 
76. 0 
*5 
33* 5 
36.5 
24 
45*o 
54* 0 
20 
67.0 
75*o 
22 
35 -° 
37*o 
Dec. 1 
43*5 
5i* 5 
27 
68.0 
77.0 
29 
35*o 
38.0 
8 
44.0 
52. 0 
Aug. 3 
68. 0 
74*o 
Apr. s 
34*o 
38. 0 
15 
36.5 
44*5 
10 
69. 0 
74.0 
12 
37*o 
47*5 
27 
3 6 - S 
41. 0 
17 
67. 0 
73*5 
19 
42.5 
48. 0 
29 
36. S 
37*o 
24 
68. 0 
75* 5 
26 
46. 0 
58.0 
31 
65.0 
71. 0 
May 3 
53*o 
59*o 
