Report of Experiments on tJie Growth of Wlieat. 123 
As the following summary will show, the produce of tho 
experimental field quite bore out this character. 
Table XI. — Summary of tho Results of the Eleventh Season, 1853-4. 
Manures. 
(Quantities per Acre.) 
Produce per Acre, &c. 
Dressed Corn. 
Total 
Corn. 
Straw 
and 
Cbaff. 
4 
Quantity. 
Weight 
per 
Bushel. 
400 lbs. Ammonia-salts alone (Plot 10a) .. 
Mixed Mineral Manure alone (mean of Plots 5a\ 
Mixed Mineral Manure, and 100 lbs. Ammonia- 1 
Mixed Mineral Manure, and 200 lbs. Ammonia-1 
Mixed Mineral Manure, and 400 lbs. Ammonia- 1 
Mixed Mineral Manure, and GOO lbs. Ammonia-) 
Mixed Mineral Manure, and 800 lbs. Ammonia- 1 
Bush. Pks. 
21 0$ 
41 0f 
34 1| 
24 Of 
31 3f 
34 0_ 
45 2 
48 2\ 
49 S| 
lbs. 
GO-6 
62 • 5 
60- 5 
61- 3 
61-1 
Cl'8 
61-8 
Gl-G 
6T7 
lbs. 
1359 
2675 
2211 
1555 
2012 
2213 
29 7 
3137 
3262 
lbs. 
2137 
4450 
3597 
2512 
3390 
3950 
5550 
G12G 
6GG9 
Thus, the experimental wheat-crop of 1854, the eleventh in 
succession on the same land, was by far the best hitherto ob- 
tained, and nearly the best throughout the 20 years. The 
weight of grain per acre was generally more than double that of 
the bad season of 1853 under parallel conditions of manuring : it 
was about equal to that of 1857 ; and not far short of that of the 
extraordinary season just past, 1863. In weight of straw, indeed, 
the .crop of 1854 far exceeded that of 1857, and nearly ap- 
proached that of 18G3. The weight per bushel of dressed corn 
was also considerably above the average, above that of 1857, 
and little short of that of 1863. The crop was, then, upon the 
whole, far above the average in quantity both of corn and straw, 
and in quality of the former. 
The produce of corn per acre by ammonia-salts alone, although 
it was the tenth year of their application on the same plot 
without mineral manure, was greater than in any preceding year ; 
and, as will be seen further on, the increase obtained for a given 
amount of ammonia supplied, was, throughout the plots, con- 
siderably more than in the average of seasons. And, notwith- 
standing the season was so favourable for the action of nitrogenous 
manures, it Was even better than the rival years of 1857 and 
1863 for the development of the unmanured, and only mineral- 
manured crops. 
