288 
Eejmi on Exjierinients conducted in 1888 by 
mangolds. (B) Experiment on manures for the mangold crop, 
conducted on lines similar to those of 1887. 
A. — Residual effect on a subsequent Oat Crop of Manures applied 
in 1887 /or Mangolds. 
The soil was of rich quality, a stiff loam of a clayey nature, 
resting on a subsoil of white clay containing chalk nodules. In 
1887 it was found that the heaviest and most highly manured 
mangold crops had been followed by the best oat crop, and the 
results of 1888 are practically in direct confirmation of this. 
Table I. below gives the produce for the two years. 
Table I. 
1888 
1887 
Uats per acre 
Plot 
Manures per acre applied in 1887 
]\r:i,ncTnlil< 
per 
Head- 
straw 
corn 
tons 
cwts. 
qrs. 
bushels 
tons cwts. 
qrs 
(A' 
No clung, no artificials .... 
',) 
14 
2 
70-84 
3 
"(0 
No dung, DO artificials .... 
10 
1 
.H 
62-04 
1 
16 
2 
F 
12 tons dupg, no artificials . . . 
11 
18 
0 
69-48 
2 
2 
1 
T 
J 
/12 tons dung, 3 cwt. superphos- ) 
(12 tons dung, 2 cwt. nitrate of i 
10 
9 
9 
72-00 
2 
1 
3 
D 
14 
<> 
0 
74-60 
o 
4 
C 
f 12 tons dung, 3 cwt. superphos- 1 
i phate, 2 cwt. nitrate of soda . f 
\'> 
12 
3 
75-60 
2 
6 
0 
M 
( 12 tons dung, i cwt. nitrate of i 
14 
5 
1 
83-76 
2 
4 
3 
L 
jl2 tons dung, 3 cwt. superphos- 1 
( phate, 4 cwt. nitrate of soda . i 
15 
5 
3 
90-04 
1 
19 
0 
K 
,12 tons dung, 4 cwt. basic cindsr, | 
14 
18 
1 
83-52 
2 
6 
0 
B 
12 tons dung, 2 cwt. guano . . . 
14 
1 
1 
67-20 
2 
1 
0 
E 
( 12 tons dung, 2 cwt. guano, 2 cwt. ) 
14 
11 
3 
70-16 
2 
0 
2 
G 
12 tons dung, 4 cwt. guano . . . 
10 
4 
3 ' 
69-36 
2 
1 
1 
H 
f 12 tons dung, 4 cwt. guano, 2 cwt. i 
' nitrate of soda ...... i 
18 
4 
0 
77-92 
2 
6 
1 
I 
( 12 tons dung, 4 cwt. guano, 4 cwt. i 
1 nitrate of soda ) 
18 
19 
2 
78-60 
2 
8 
o 
E 
No dung, 4 cwt. nitrate of soda 
13 
0 
3 
76-36 
2 
3 
2 
N 
/ No dung, 4 cwt. basic cinder, 4 1 
12 
7 
3 
77-12 
2 
1 
0 
P 
(No dung, 3 cwt. superphosphate,) 
1 4 cwt. nitrate of soda . . . . f 
IC 
19 
3 
72-20 
2 
0 
3 
Q 
J No dung, fi cwt. guano, 4 cwt. ^ 
18 
18 
0 
80-56 
2 
5 
0 
' The mean yield of A and 0 is . 
9 
18 
0 
66-44 
2 
0 
0 
By a comparison of the unmanured plots (A and 0) with 
plot r it is seen that dung aloue gave an increase of 2 tons of 
