Rotation of Crops, 
611 
Table V . — Experiments on the Rotation of — Roots , Barley, Clover {or 
Beans), or Falloio, and Wheat ; in Agdell Field, Rothamsted. 8 courses, 
32 years, 1852-1883. 
AVERAGE AMOUNTS OP DRV MATTER PER ACRE, GROWN IN ROTATION, COMPARED 
WITH THOSE IN THE CROPS GROWN CONTINUOUSLY. 
Uu manured 
Superphosphate 
Mixed mineral and 
nitrogenous manure 
Roots carted 
Roots fed 
Roots carted 
Roots fed 
Roots carted 
Roots fed 
Beans 
low clover 
Fal- 
low 
Beaus 
or 
clover 
Fal- 
low 
Beans 
or 
clover 
Fal- |® eaus 
, ! or 
Iow clover 
Fal- | Beaus 
low 1 clover 
Fal- 
low 
Beans 
or 
clover 
SWEDISH TURNIPS. 
1 Rotation . . . 
Roots j Continuous ' . . 
' , 'otn.+ or — cont. 
lb. 
359 
236 
lb. 
228 
236 
lb. 
323 
236 
lb. 
205 
236 
lb. 
1,724 
945 
lb. 
1,631 
945 
lb. 
1,918 
945 
lb. 
1,901 
945 
lb. 
3,081 
1,876 
lb. 
3,128 
1.876 
lb. 
3,107 
1,876 
lb. 
3,069 
1,876 
123 
-8 
87 
-31 
779 
686 
973 
956 
1,205 
1,252 
1,231 
1,193 
| Rotation . . . 
56 
40 
52 
45 
161 
176 
179 
200 
310 
355 
333 
354 
Leaves -j Continuous 1 . . 
49 
49 
49 
49 
142 
142 
142 
142 
345 
315 
345 
345 
1 Rotn.+ or —cont. 
7 
0 
3 
-4 
19 
34 
37 
58 
-35 
10 
-12 
9 
| notation . . . 
415 
277 
375 
250 
1.885 
1,807 ! 
2,097 
2,101 
3,391 
3,483 
3,440 
3,423 
Total -j Continuous 1 . . 
285 
285 
285 
285 
1,087 
1,087 
1,087 
1,087 
2,221 
2.221 
2,221 
2,221 
iRotn.H- or —cont. 
130 
-8 
90 
-35 
798 
720 
1,010 
1,014 1 1,170 
1,262 
1,219 
1,202 
BARLEY. 
Grain 
j Rotation . . . 
J Continuous . . 
1,396 
875 
1,489 
875 
1,399 
875 
1,307 
875 
1,284 
1,128 
1,294 
1,128 
1,665 
1,128 
1,780 
1,128 
1,917 
2,298 
1,987 
2,298 
2,262 
2,298 
2,273 
2,298 
v Rot n.+ or —cont. 
521 
614 
524 
432 
156 
166 
537 
652 
-381 
-311 
-36 
-25 
Straw 
/ Rotation . . . 
J Continuous . . 
1,493 
947 
1,647 
947 
1,486 
947 
1,459 
947 
1,307 
1,052 
1,355 
1,052 
1,765 
1,052 
1,879 
1,052 
2,029 
2,489. 
2,129 
2,489 
2,701 
2,489 
2,613 
2,489 
V Rotn.-f or —cont. 
546 
700 
1 539 
512 
255 
303 
713 
827 
-460 
-360 
212 
124 
Total 
| Rotation . . . 
■] Continuous . . 
2,889 
1,822 
3,136 
1,822 
2,885 
1,822 
2,766 
1,822 
2,591 
2,180 
2,649 
2,180 
3,430 
2,180 
3,659 
2,180 
3,946 
4,787 
4,116 
4,787 
4,963 
4,787 
4,886 
4,787 
• Rotn.+ or —cont. 
1,067 
1,314 
1,063 
944 
411 
469 
1,250 
1,479 
-841 
-671 
176 
99 
BEANS (6 COURSES), CLOVER (2 COURSES), OR FALLOW. 
(■ Rotation . . . 
Corn J Continuous . . 
vRotn. + or —cont. 
631 
234 
1 625 
234 
640 
265 
769 
265 
1,147 
581 
1,292 
581 
397 
391 
375 
504 
566 
711 
f Rotation . . . 
Straw -j Continuous . . 
V Rot n. + or —cont. 
879 
422 
835 
422 
978 
524 
1,213 
524 
1,487 
799 
1,540 
799 
457 
413 
454 
689 
688 
741 
( Rotation . , . 
Total Continuous . . 
' Rotn.+ or —cont. 
1,510 
656 
1,460 
656 
1,618 
789 
1,982 
789 
2,634 
1,380 
2,832 
1.380 
854 
804 
829 
1,193 
1,254 
1,452 
_ | Rotation . . . 
Clover j continuous . . 
j 2,309 
1 ? 
1,996 
? 
4,717 
? 
5,645 
? 
6,714 
? 
6,833 
? 
Average of 8 courses, 1 
beaus and clover J 
*1,710 
i 1,594 
2,393 
2,897 
3,654 
3,832 
WHEAT. 
Grain 
Rotation 
Continuous 
1,516 
647 
1,368 
647 
1,483 
647 
1,235 
647 
1,636 
766 
1,514 
766 
1,702 
766 
1,668 
766 
1,685 
1,238 
1,740 
1,238 
1,599 
1,238 
1,752 
1,238 
Rot.n.+ or — 
cont. 
869 
721 
836 
588 
870 
748 
936 
902 
447 
502 
361 
514 
Straw 
Rotation 
Continuous 
2,636 
1,082 
2,296 
1,082 ! 
2,573 
1,082 
2,036 
1,082 
2,844 
1.204 
2,513 
1,204 
3,021 
1,204 
2,767 
1,204 
3,158 
2,142 
3,137 
2,142 
3,273 
2,142 
3,186 
2,142 
Rotn.+ or — 
cont. 
1,554 
1,214 
1,491 
954 
1.640 
1,309 
. 1,817 
1,563 
1,016 
995 
1.131 
1,044 
Total 
Rotation 
Continuous 
4,152 
1,729 
3,664 
1,729 
4,056 
1,729 
3.271 
1,729 
4,480 
1,970 
4,027 
1,970 
4,723 
1,970 
4,435 
1,970 
4,843 
3,380 
4,877 
3,380 
i 4,872 
1 3,380 
4,938 
3,380 
Rotn.+ or — 
cont. 
2,423 
1,935 | 
2,327 
1,542 
2,510 
2,057 
2,753 
2,465 
1,463 
1,497 
1,492 
1,558 
1 Average 19 years, 1819-1852 ami 1856-1870, 
