598 
Rotation of Or ops. 
Table II . — Experiments on the Rotation of — Roots, Barley , Clover (or Beans), 
or Fallow, and Wheat ; in Agdell Field, Rothamsted. 1 1 courses, 44 years, 
1848-1891. 
2. BARLEY. 
Unmanured 
Courses 1-0 superphosphate 
only. Courses 10 & 11 mixed 
mineral manure 
Mixed mineral and 
nitrogenous manure 
Years 
Roots carted 
Roots fed 
Roots carted 
Roots fed 
Roots carted 
Roots fed 
[ Beans 
Fallow or 
clover 
| 
Fallow 
Beans 
or 
clover 
Fallow 
Beans 
or 
clover 
Fallow 
Beans 
or 
clover 
Fallow 
Beans 
or 
clover 
| Beans 
Fallow or 
| clover 
DRESSED GRAIN. 
Bush. 
Bush. 
Bush. 
Bush. 
Busli. 
Bush. 
Bush. 
Bush. 
Bush. 
Bush. 
1 Bush. 
I Bush. 
1849 
33? 
44* 
44* 
48 
29* 
205 
41 
42? 
37 
285 
I 44* 
423 
1853 
32* 
34g 
33 
28* 
32 
28* 
39* 
58 
37£ 
38* 
I 37* 
1857 
43? 
48* 
44* 
40* 
30? 
28* 
48? 
52§ 
47* 
48 
j 66* 
63* 
1861 
35* 
38* 
33 
29* 
32* 
30* 
405 
42* 
60* 
605 
57? 
645 
1865 
34* 
39 
35* 
27? 
31* 
33* 
39* 
41* 
445 
47* 
465 
433 
1860 
218 
24* 
21 
25* 
25* 
28? 
30* 
33* 
39? 
42* 
385 
42* 
1873 
20? 
23* 
20* 
22* 
22* 
20? 
27 
295 
31* 
31? 
i 47 
46* 
1877 
23 
23* 
22* 
23* 
21 
24* 
315 
385 
30? 
34? 
; 445 
49* 
1881 
29* 
26 1 
31# 
255 
24* 
24* 
28* 
28? 
335 
355 
47£ 
601 
1885 
15* 
12* 
22? 
16 
12* 
19* 
17* 
32* 
19 
34? 
32* 
44? 
1889 
15* 
11 
16* 
12* 
15* 
21? 
1»* 
29$ 
20 
26* 
23* 
25* 
Av. 8 courses ) 
1853-1881 | 
30 
32* 
30* 
28 
27* 
275 
35| 
38 
40? 
42? 
485 
47* 
Av. 2 courses j 
1 885 & 1889 j 
15* 
11* 
19? 
14? 
14 
20* 
18* 
31* 
19* 
30? 
27* 
35* 
STRAW. 
lb. 
lb. 
lb. 
lb. 
lb. 
lb. 
lb. 
lb. 
lb. 
lb. 
lb. 
lb. 
1849 
2.200 
2.083 
3.139 
3.225 
1.870 
2,111 
3,209 
3,327 
2,842 
2.088 
3.709 
3,646 
1853 
2,187 
2,430 
2,210 
2,077 
2,003 
1,873 
2,729 
2,756 
2,595 
2,604 
3,323 
3,981 
1857 
2,330 
2,600 
2,430 
2,312 
1,545 
1,475 
2,595 
2,780 
2,400 
2,435 
3,570 
3,405 
1861 
2,190 
2,522 
2,018 
1,970 
1,954 
2,000 
2,475 
2,553 
3,920 
3,940 
4,175 
3,940 
1866 
1,828 
2,154 
1,809 
1,460 
1,509 
1,615 
2,043 
2,244 
2,398 
2,595 
3,274 
2,958 
1869 
1,628 
1,948 
1,648 
1,944 
1,873 
1,370 
2,025 
2,265 
2,401 
3,064 
3,309 
3,244 
3,229 
1873 
1,374 
1,343 
1,311 
1,405 
1,565 
1,611 
1,841 
1,626 
1,723 
2,796 
2,458 
1877 
1,244 
1,291 
1,275 
1,341 
1,054 
1,174 
1,706 
1,994 
1,625 
1,918 
2,646 
3,125 
1881 
1,566 
1.484 
1,568 
1.468 
1.239 
1.259 
1,500 
1,430 
1,755 
1.853 
2,993 
3,078 
1885 
1,518 
1,270 
1,768 
1,379 
1,043 
1,441 
1,480 
2,358 
1,528 
2,461 
2,778 
3,386 
1889 
953 
931 
996 
865 
965 
1,221 
1,135 
1,613 
1,231 
1.685 
1,776 
2.030 
Av. 8 courses 1 
1853-1881 | 
1,792 
1,971 
1,784 
1,758 
1,568 
1,623 
2,116 
2,250 
2,423 
2,547 
3,253 
3,146 
Av. 2 courses ) 
1885 & 1889) 
1,235 
1,101 
1,382 
1,122 
1,004 
1,331 
1,307 
1,986 
1,380 
2,073 
2,277 
2,708 
TOTAL PRODUCE. 
lb. 
lb. 
lb. 
lb. 
lb. 
lb. 
I lb. 
i lb. 
lb. 
lb. 
| lb. 
lb. 
1849 
4,149 
6,656 
5,785 
6,046 
3.575 
3,841 
| 6,708 
| 5,885 
5,026 
3.794 
6,344 
6,206 
1853 
4,046 
4,464 
4,161 
3,817 
3,876 
3,560 
5,110 
5,058 
4,849 
4,873 
5,672 
5,190 
1857 
4,777 
5,337 
4,912 
4,558 
3,272 
3,076 
5,326 
5,741 
5,091 
5,168 
7,261 
6,930 
1861 
4,248 
4,718 
3,871 
3,635 
3,807 
3,775 
4,803 
4,982 
7,419 
7,391 
7,654 
5,753 
7,148 
1865 
3,659 
4,182 
3,358 
3,695 
2,961 
3.170 
3,394 
4,122 
4,457 
4,799 
6,148 
6,308 
1869 
2,881 
2,843 
3,387 
3,328 
3,686 
3,999 
4,313 
5,414 
5,800 
6,491 
6,701 
1873 
2.596 
2,717 
2,536 
2,844 
2,713 
2,875 
3,209 
3,575 
3,412 
3,573 
6,478 
6,018 
1877 
2,602 
2,623 
2,609 
2,673 
2,304 
2,558 
3,530 
4,157 
3,406 
3,890 
5,217 
5,963 
1881 
3,170 
2,922 
3,297 
2,929 
2,576 
2,641 
3,083 
3,051 
3,651 
3,857 
5,720 
6.964 
1885 
2,402 
1,789 
1,960 
3,056 
2,235 
1,833 
2,538 
2,576 
4,193 
2,643 
4,436 
4,624 
3,045 
6,946 
3,409 
1889 
1,610 
1,898 
1,630 
1,775 
2,402 
2,248 
3,250 
2,362 
3,134 
Av. B courses ) 
1853-1881 j 
3,497 
3,790 
3,491 
3,351 
3,131 
3,196 
4,148 
4,417 
4,755 
4,962 
6,018 
5,903 
Av. 2 courses | 
1885*1889* 
2,095 
1,735 
2,477 
1,882 
1,804 
2,470 
2,412 
3,722 
2,503 
3,780 
3,836 
4,677 
