162 INVESTIGATIONS ON ROTHAMSTED SOILS. 
Table 86. —Produce of wheat at Rothamsted under various conditions of soil. 
Dresse 
Produce 
per acre. 
i grain. 
Weight 
per 
bushel. 
Total 
grain per 
acre. 
Total 
straw 
per acre. 
Total 
produce 
(grain 
and 
straw ) 
per acre. 
Wheat after various leguminous plants, harvest 
1899. 
Bushels. 
39| 
42.} 
43} 
45i 
431 
43" 
40 
Pounds. 
63.6 
63.9 
64.1 
64.3 
64.1 
64.3 
64.4 
Pounds. 
2,609 
2,808 
2, 916 
3, 028 
2,904 
2,925 
2,715 
Pounds. 
5,499 
5,622 
5, 592 
5, 611 
5. 404 
5,580 
5,051 
Pounds. 
8,108 
8.430 
8,508 
8,639 
8.308 
8,505 
7,766 
Peas 
Bokhara clover 
Sainfoin 
White clover 
Red clover 
Vetches 
Mean 
m 
64.1 
2,843 
5,480 
8,323 
Wheat after various leguminous plants, second 
season, harvest 1900. 
26i 
Hi 
16* 
19 
19i 
19 
14* 
61.7 
61.0 
61.4 
61.4 
61.5 
61.5 
61.9 
1,677 
890 
1,033 
1,198 
1,220 
1,205 
902 
2,614 
1,312 
1,549 
1,788 
1,707 
1,787 
1,360 
4,291 
2,202 
2,582 
2,986 
2,927 
2,992 
2,262 
Peas 
Bokhara clover 
Sainfoin 
White clover 
Red clover ... 
18f 
61.5 
1, 161 
1,731 2,892 
W heat alternated with jalloiv (produce reckoned 
at the yield per acre of the half in crop each 
year). 
Average 40 years, 1856-1895 
1896 
17| 
58.7 
1,073 
1,595 • 2,668 
16 
7 
20* 
n! 
60.7 
59.5 
61.3 
62.2 
60.7 
1,020 
460 
1,314 
1.004 
751 
1,312 
710 
2, 650 
1,616 
1,050 
2,332 
1,170 
3,964 
2. 620 
1,801 
1897. 
1898 
1900 
Wlieat alternated with fallow (yield per acre of 
the whole area, half in crop and half fallow). 
Average 40 years, 1856-1895 
1896 
14i 
60.9 
910 
1,467 
2, 377 
8| 
58. 7 
536 
798 
1,334 
8 
Si 
10i 
7| 
6 
60.7 
59.5 
61.3 
62.2 
60.7 
510 
230 
657 
502 
376 
656 1 166 
1897 
355 
1,325 
808 
525 
585 
1,982 
1,310 
901 
1899 
Mean, 5 years, 1896-1900 
Wheat grown continuously without manure 
( Br oadbalk field) . 
Average 40 years, 1856-1895 
1896 
60.9 
455 
734 
1.189 
12f 
58.8 
795 
1,127 
1,921 
16| 
SI 
12 
12 
12\ 
61.4 
60.3 
61.4 
61.7 
60.2 
1,087 
592 
823 
769 
769 
1,309 
867 
1,363 
1,056 
1,008 
2,396 
1,459 
2, 186 
1.825 
1,777 
1897 
1898 
1899 
1900 
Mean, 5 years, 1896-1900 
12| 
61.0 
808 
1,121 
1,929 
SUMMARY. 
Wheat after various leguminous plants: 
Second season, harvest 1900 
Wheat alternated with fallow, average 40 years, 
1866-1886: 
Produce per acre of the half in crop each 
year 
m 
17? 
8* 
12} 
64.1 
61.5 
58.' 7 
58.7 
58.8 
2,843 
1.161 
1,073 
5:36 
795 
5,480 
1,731 
1,595 
798 
1,127 
8,323 
2,892 
2,668 
1,884 
1.921 
Produce per acre of the whole area, half in 
crop and half fallow 
Wheat thrown continuously without manure, 
Broad balk field, average 40 years, 1856-1895 ... . 
