by Local Agricultural Societies. 
265 
The experimental field was dunged throughout, with the 
exception of one quarter-acre plot, the object of the experiments 
being to ascertain the most economical mode of supplementing 
dung, not of replacing it. The land having been ploughed 
into ridges or baulks, the dung — 20 small loads, or about 
12 tons per acre — was spread in the furrows, and the artificial 
manures — except, of course, those to be used afterwards as top- 
dressing — were also spread in the furrows, on the top of the 
dung. The intervening ridges, 2 ft. 6 in. from crown to 
crown, were then split by the plough, forming new furrows 
alternating with the old ones, each of which became, of course, 
replaced by a new compound ridge or " baulk " enclosing the 
manure. The seed, Yellow Globe Mangold, was drilled on 
the top of these ridges. 
The seed was sown on April 27th. The young plant was 
singled out in June, and the top-dressings — where used — were 
applied on July 7th. 
The crop was taken up during the third week in November, 
and the trimmed roots were carefully weighed on a weigh-bridge, 
as they were carted from the field. 
The weights of the trimmed roots calculated per acre, are 
given below, side by side, with the manures used : — 
Manure per Acre. 
Mangolds per Acre. 
G 
No dung, no artificial manures 
12 tons dung, no artificial manures 
12 tons dung, 3 cwt. superphosphate 
("12 tons dung, 3 cwt. superphosphate, 1 cwt. nitrate'l 
\ of soda applied at seed time j 
(12 tons dung, 3 cwt. superphosphate, 1 cwt. nitrated 
( of soda top-dressed in J uly / 
fl2 tons dung, 3 cwt. superphosphate, f cwt. sul-^ 
phate of ammonia applied at seed time . . . . j 
fl2 tons dung, 3 cwt. superphosphate, f cwt. sul-'l 
( phate of ammonia top-dressed in July / 
(12 tons dung, 3 cwt. superphosphate, 2 cwt. nitrate^ 
( of soda applied at seed time J 
(12 tons dung, 3 cwt. superphosphate, 2 cwt. nitrate "» 
I of soda top-dressed in July j 
(12 tons dung, 3 cwt. superphosphate, IJ cwt. sul-'l 
( phate of ammonia applied at seed time .. .. / 
(12 tons dung, 3 cwt. superphosphate, 1| cwt. sul-'l 
{ phate "of ammonia top-dressed in July .. . j 
f l2 tons dung, 3 cwt. superphosphate, 1 cwt. nitrate'l 
[ soda mixed with 1 cwt. salt top-dressed in July / 
[12 tons dung, 3 cwt. superphosphate, IJ cwt. sul- 
phate of potash, top-dressed in July with 1 cwt, 
nitrate of soda 
(12 tons dung, 3 cwt. superphosphate, ij cwt. eul-'j 
phate of potash, f cwt. sulphate of ammonia [ 
applied at seed time ) 
tons 
14 
22 
22 
cwt. 
12 
12 
10 
qrs. 
2 
1 
0 
lbs. 
20 
8 
16 
23 
4 
2 
4 
24 
10 
2 
0 
24 
13 
1 
4 
22 
14 
3 
12 
26 
0 
1 
20 
25 
IG 
2 
0 
25 
0 
3 
0 
24 
7 
1 
4 
24 
1 
0 
4 
23 
3 
0 
4 
18 
13 
2 
16 
