28 
BULLETIN 1180, U. S. DEPARTMENT OF AGRICULTURE. 
Table 14. — Yields per acre of cotton and corn from Section I of field No. 2. 
[In series D tests marked with a star (*) cyanamid and calcium nitrate were used in equal proportions 
in those marked with a dagger (t) the proportions were 75 per cent cyanamid and 25 per cent calcium 
nitrate.] 
"3 
fields of seedcotton(pounds). 
S 
Yields of corn. 
Fertilizer ratio. 
I 
< 
i> 
2 
® 
> 
< 
M 
1 
-4 
1 
| 
3 
EG 
Grain (bushels). 
1 
o 
2 
> 
< 
9 
hi 
E*l 
® 03 
II 
> H 
Series A.— Ammonium 
nitrate: 
0-0-0 
4 
5 
6 
U 
8 
9 
10 
11 
1 
{? 
3 
4 
5 
6 
9 
10 
11 
{} 
3 
4 
5 
6 
9 
10 
11 
{? 
3 
4 
5 
6 
Ul 
8 
9 
10 
11 
<1 
4 
5 
6 
<i 
9 
10 
11 
400 
632 
988 
760 
1,048 
1,508 
1,560 
988 
728 
836 
772 
984 
1,460 
440 
892 
972 
1,088 
1,308 
1,288 
984 
972 
628 
1,044 
892 
952 
1,152 
392 
796 
688 
880 
708 
1,012 
512 
688 
844 
740 
844 
920 
648 
396 
672 
284 
684 
712 
808 
728 
284 
292 
404 
524 
616 
528 
524 
708 
424 
796 
872 
968 
556 
424 
440 
516 
576 
748 
672 
460 
j- 810 
760 
1,048 
1,508 
1,560 
j- 858 
836 
772 
984 
1,460 
440 
} 932 
1,088 
1,308 
1,288 
984 
} 800 
1,044 
892 
952 
1,152 
392 
\ 742 
880 
708 
1,012 
512 
\ 766 
740 
844 
920 
648 
396 
| 478 
684 
712 
808 
728 
} 288 
404 
524 
616 
528 
524 
} 566 
796 
872 
968 
556 
} 432 
516 
576 
748 
672 
13 
I U 
\ 19 
15 
16 
17 
18 
f 19 
\24 
20 
21 
22 
23 
13 
{!* 
15 
16 
17 
18 
f 19 
\24 
20 
21 
22 
23 
13 
us 
15 
16 
17 
18 
f 19 
\ 24 
20 
21 
22 
23 
13 
f 14 
\19 
15 
16 
17 
18 
f 19 
\24 
20 
21 
22 
23 
13 
f 14 
\19 
15 
16 
17 
18 
f 19 
\24 
20 
21 
22 
23 
2,320 
2,520 
2,680 
2,680 
2,560 
2,720 
2,920 
2,680 
3,040 
2,680 
2,720 
3,040 
3,040 
2,040 
2,120 
2,400 
2,040 
2,000 
2,320 
2,480 
2,400 
2,520 
2,240 
2,360 
2,400 
2,720 
2,440 
3,000 
2,320 
2,680 
2,600 
2,560 
2,040 
2,320 
2,440 
2,440 
2,480 
2,440 
2,880 
1,800 
2,120 
2,320 
2,480 
2,520 
2,720 
2,480 
2,320 
2,720 
2,400 
2,560 
2,720 
2,840 
1,840 
2,440 
2,440 
2,280 
2,480 
2,640 
2,400 
2,440 
2,120 
2,520 
2,760 
2,880 
2,920 
28.6 
30.3 
37.1 
33.7 
34.9 
39.4 
41.1 
37.1 
41.7 
36.0 
37.1 
41.7 
41.1 
21.1 
16.6 
10.9 
17.1 
17.1 
26.9 
36.0 
10.9 
30.3 
14.9 
22.3 
33.7 
36.0 
38.3 
42.9 
13.7 
40.0 
38.9 
35.4 
33.1 
13.7 
29.7 
14.3 
20.6 
31.4 
40.6 
12.6 
18.3 
18.3 
21.7 
30.9 
34.9 
35.4 
18.3 
39.4 
21.1 
30.3 
38.9 
36.6 
23.4 
20.6 
36.6 
25.7 
37.7 
42.3 
39.4 
36.6 
41.7 
39.4 
42.9 
46.3 
46.3 
28.6 
j- 33.7 
33.7 
34.9 
39.4 
41.1 
} 39.4 
36.0 
37.1 
41.7 
41.1 
21.1 
} 13.8 
17.1 
17.1 
26.9 
36.0 
} 20.6 
14.9 
22.3 
33.7 
36.0 
38. 3 
} 28.3 
40.0 
38.9 
35.4 
33.1 
y 21.7 
14.3 
20.6 
31.4 
40.6 
12.6 
}l8.3 
21.7 
30.9 
34.9 
35.4 
J28.9 
21.1 
30.3 
38.9 
36.6 
23.4 
} 28.6 
25.7 
37.7 
42.3 
39.4 
} 39.2 
39.4 
42.9 
4o.3 
46.3 
0-8-4 
"■■ 
1-8-4 
-50 
238 
698 
750 
1 

1.2 
5.7 
7.4 
2-8-4 
4-8-4 
8-8-4 
0-8-4 
1-8-4 
-22 
-86 
126 
602 
-36 
76 
412 
676 
-3.4 
-2.3 
2.3 
1.7 
2-8-4 
-1.7 
5 
4-8-4 
4 0' 
8-8-4 
4 6 
Series B.— Urea: 
0-0-0 
0-8-4 
1-8-4 
156 
376 
356 
52 
3.3 
3.3 
13.1 
22.2 
2-8-4 
4-8-4 
8-8-4 
0-8-4 
1-8-4 
244 
92 
152 
352 
200 
234 
254 
202 
-5.7 
1.7 
13.1 
15.4 
1 2 
2-8-4 
2.5 
4-8-4 
13 1 
8-8-4 
18.8 
Series C— Ammonium 
sulphate: 
0-0-0 
0-8-4 
1-8-4 
138 
-34 
270 
-230 
11.7 
10.6 
7.1 
4.8 
2-8-4 
4-8-4 
8-8-4 
0-8-4 
1-8-4 
-26 
78 
154 
-118 
56 
22 
212 
-174 
-7.4 
-1.1 
9.7 
18.9 
2.2 
2-8-4 
4.8 
4-8-4 
8.4 
8-8-4 
11.9 
Series D.— Cyanamid and 
calcium nitrate (with 
basic slag): 
0-0-0 
0-8-4 
*l-8-4 
206 
234 
330 
250 
3.4 
12.6 
16.6 
17.1 
*2-8-4 
*4-S-4 
*8-8-4 
0-8-4 
+1-8-4 
116 
236 
328 
240 
-7.8 
1.4 
10.0 
7.7 
+2-8-4 
+4-8-4 
+8-8-4 
Series E. — Cyanamid 
(with basic slag): 
0-0-0 
0-8-4 
1-8-4 
230 
306 
402 
-10 
-2.9 
9.1 
13.7 
10.8 
2-8-4 
4-8-4 
8-8-4 
0-8-4 
1-8-4 
84 
144 
316 
240 
157 
225 
359 
115 
.2 
3.7 
7.1 
7.1 
—1.4 
2-8-4 
6.4 
4-8-4 
10.4 
8-8-4 
9.0 
