conducted at Woburn during 1877. 
Produce of Wheat; Fibst Season, 1877. 
239 
Peodcce per Acbe. 
Masukes per Acbe. 
Dressed Com. 
Quantity. 
Weight. 
per 
Bushel. 
Straw, &c. 
Bushels. 
lbs. 
Cwts. 
22J 
61-8 
201 
37i 
31^ 
60-6 
34i 
20J 
61-4 
20 
337 
60-9 
39 
32 
60-3 
36J 
201 
61-1 
19i 
43,^ 
62*1 
483 
391 
61-2 
42f 
18 
60-0 
181 
181 
60-4 
20i 
Unmanured 
200 lbs. Ammonia-salts, alone (applied inl 
the Spring) / 
275 lbs. Nitrate Soda (applied in the Spring) 
200 lbs. Sulph. Potass, 100 lbs. Sulph. Soda.j 
100 lbs. Sulph. Magnesia, 3i cwts. Super-, 
phosphate of Lime I 
200 lbs. Sulph. Potass, 100 lbs. Sulph. Soda, j 
100 lbs. Sulph. Magnesia, 3 J cwts. Super- 1 
phosphate of Lime, and 200 lbs. Am-j 
monia-salts (in Spring) j 
200 lbs. Sulph. Potass, 100 lbs. Sulph. Soda,] 
100 lbs. Sulph. Magnesia, 3 J cwts. Super- 1 
phosphate of Lime, and 275 lbs. Nitrate! 
Soda (in Spring) j 
Unmanured 
200 lbs. Sulph. Potass, 100 lbs. Sulph. Soda, ] 
100 lbs. Sulph. Magnesia, 3^ cwts. Super- 1 
phosphate of Lime, and 400 lbs. Am-[ 
monia-salts (in Spring) ' 
200 lbs. Sulph. Potass, 100 lbs. Sulph. Soda,] 
100 lbs. Sulph. Magnesia, 3J cwts. Super- 1 
phosphate of Lime, and 550 lbs. Nitrate ] 
Soda (in Spring) j 
Farmyard-manure ; estimated to contain | 
Nitrogen = 100 lbs. Ammonia (not spe-| 
cially made, as there was not time to) 
make it, 6 tons of well turned-over manure 
taken from the yard) I 
Farmyard-manure; estimated to contain] 
Nitrogen = 200 lbs. Ammonia (not spe- 1 
cially made, as there was not time to/ 
make it, 12 tons of well turned-over 
manure taken from the yard) 
The more noticeable features of the results are as follows : — 
There was an entire absence of any beneficial effects from 
the application of the farmjard-dung, or from that of mineral 
manures without nitrogen. A given amount of nitrogen, applied 
as ammonia salts, was more effective than the same amount 
applied as nitrate of soda. This was the case whether they were 
used alone, in the same quantity in conjunction with mineral 
manures, or in double quantity with the same mineral manures. 
The superiority of the ammonia-salts over the nitrate showed 
