Grown in 1889 at Rothamsted. 
435 
Table II. — The Plots of Broadbalk Field arranged according to 
the Market Value of the Wheat. 
Value of 
the 
Wheat 
per acre 
£ >. 
7 12 
6 
5 
5 
5 
5 
4 
4 
4 
4 
4 
'4 
4 
2 
2 
2 
2 
1 
1 
d. 
6 
3 
7 
7 
8 
6 
4 
2 
13 10 
7 11 
7 8 
4 
4 
18 
11 
7 
0 
18 
3 
0 
0 
4 
5 
9 
5 
17 11 
Mineral Manures 
Sulphate Sulphate 
of of 
Potas3 Soda 
Sulphate Super- 
of 'phosphate 
Magnesia! of Lime 
Nitrogenous Manure* 
lb. 
200 
200 
200 
200 
200 
200 
Fourteen tons farmyard manure since 1844 
lb. lb. ] c\vt. ] 
100 I 100 3| I 600 lb. ammonia salts 
100 | 100 ' 3 1 | 400 lb. ammonia salts 
Fourteen tons farmyard manure since 1855 
100 
100 
100 
200 I 100 
100 
100 
100 
280 
100 
550 lb. nitrate of soda] 
400 lb. ammonia salts 
400 lb. ammonia salts 
275 lb. nitrate of soda 
400 lb. ammonia salts 
400 lb. ammonia salts 1 
200 lb. ammonia salts 
200 
200 
366£ 
100 
100 
1889 lb. rape-cake applied in autumn 
100 
100 
400 lb. ammonia salts 
None 
400 lb. ammonia salts 
Unmanured since 1844 
275 lb. nitrate of soda 
400 lb. ammonia salts 
None 2 
H 
H 
H 
3i 
1 Mineral manures were put in for the crop of the previous year. 
s Ammonia salts were supplied for the crop of the previous year. 
apart or 18 to the land. This thin sowing was a temporary expe- 
dient to clean the ground, which had become very foul under the con- 
tinuous cropping with thick sowing. It involved very much more 
risk of damage from hoeing and trampling than the usual thick 
sowing, and very much more on some plots than on others, as some 
were more foul than others. The valuer made a careful comparison 
Table III. — Quantity of Dressed Grain per Acre on the Thick and 
Thin Sown Portions of the Plots. 
Serial 
Thick 
Thin 
Serial 
Thick 
No. 
Sown 
Sown 
No. 
Sown 
bushels 
bushek 
bushels 
1 
31* 
28 
12 
35f 
2 
40i 
37£ 
13 
26i 
3 
12i 
9f 
14 
12f 
4 
12J 
15$ 
15 
111 
5 
"I 
16 
12} 
16} 
6 
151 
16§ 
17 
7 
224 
23| 
18 
16i 
8 
23j 
24f 
19 
24* 
9 
30£ 
3l| 
i 20 
23§ 
10 
304 
29± 
21 
25 
11 
35*1 
22 
27 
Thin 
Sown 
bushels 
27i 
281 
5 
3* 
16§ 
16| 
ie| 
23* 
20i 
Serial 
No. 
Thick 
Sown 
Thin 
Sown 
23 
24 
25 
26 
27 
28 
29 
30 
31 
32 
33 
bushels 
25£ 
24 
28| 
25 1 
29 
29 
11 
H 
22 
24| 
22| 
bushels 
iH 
12£ 
20| 
18| 
24J 
23 
H 
22 
23f 
20J 
F F 2 
