324  The  Woburn  Field  Experiments , 1910. 
Table  I. — Continuous  Growing  of  Wheat , 1910 
(34 th  Season). 
(Wheat  grown  year  after  year  on  -the  same  land,  the  manures  being  applied 
every  year.) 
Stackyard  Field— Produce  per  acre. 
Head  corn 
Tail 
corn 
Straw. 
Value 
per 
quarter 
on  basis 
of 
32*. 
Plot 
Manures  per  acre 
No.  of 
bush. 
Weight 
per 
bushel 
2 
to 
'3 
£ 
chaff. 
&c. 
1 
Unmanured  .... 
135 
Lb. 
602 
Lb. 
43 
C.  q.  lb. 
12  1 27 
s.  d. 
31  6 
2a 
2a  a 
Sulphate  of  ammonia  (=25  lb. 
ammonia)  .... 
As  2a,  with  5 cwt.  lime,  Jan., 
1905,  repeated  1909  and  1910 
12-3 
560 
48 
3 16 
12  1 22 
30  0 
2b 
As  2a,  with  2 tons  lime,  Dec., 
1897  
234 
58-2 
80 
19  0 24 
28  0 
2bb 
As  2b,  with  2 tons  lime  (re- 
peated), Jan.,  1905 
22 2 
56-5 
80 
22  0 24 
28  0 
3a 
Nitrate  of  soda(=50  ib.ammonial 
23'3 
56-9 
96 
24  2 4 
28  0 
3b 
N i trate  of  soda(=25  lb.ammonia) 
20-5 
56-2 
74 
20  2 8 
28  0 
4 
Mineral  manures  (superphos- 
phate, 3 cwt. ; sulphate  of 
potash,  ^ cwt.) 
12-fi 
60-6 
33 
12  2 24 
31  6 
5a 
Mineral  manures  and  sulphate 
of  ammonia  (=25  lb.  ammonia) 
170 
60-0 
64 
15  2 26 
31  0 
5 b 
As  5a,  with  1 ton  lime,  Jan., 
1905  
24-1 
602 
46 
19 
4 
31  6 
6 
Mineral  manures  and  nitrate 
of  soda  (=25  lb.  ammonia)  . 
233 
59-0 
75 
25  2 15 
31  0 
7 
Unmanured  .... 
14  7 
59-8 
38 
12 
15 
31  0 
8 a 
Mineral  manures  anti  (in  alter- 
nate years)  sulphate  of 
ammonia  (=50  lb.  ammonia) 
70' 
58'0 
32 
7 1 26 
30  0 
8aa 
As  8a,  with  10  cwt.  lime,  Jan., 
1905  
225 1 
59-7 
84 
21  3 6 
30  0 
8b 
Mineral  manures,  sulphate  of 
ammonia  (=50  lb.  ammonia) 
omitted  (in  alternate  years). 
4'93 
580 
28 
5 0 20 
31  0 
8bb 
As  8b,  with  10  cwt.  lime,  Jan., 
1905  
1 2’  1 2 
60-0 
48 
111  5 
31  0 
9a 
Mineral  manures  and  (in  alter- 
nate years)  nitrate  of  soda 
(=50  lb.  ammonia) 
27-81 
60-0 
68 
28  3 22 
31  0 
9 b 
Mineral  manures,  nitrate  of 
soda  (=50  lb.  ammonia) 
omitted  (in  alternate  years). 
13-5 3 
597 
44 
12  1 4 
31  0 
10a 
Superphosphate  3 cwt.,  nitrate 
of  soda  (=25  lb.  ammonia)  . 
22-9 
58-7 
52 
21  3 22 
31  0 
10b 
Rape  dust  (=25  lb.  ammonia). 
25-1 
605 
60 
22  2 18 
31  6 
11a 
Sulphate  of  potash  1 cwt.,  ni- 
trate of  soda  (=25  lb.  am- 
monia) ..... 
21-2 
59-0 
1 
52 
20  3 8 
31  0 
lib 
Farmyard  manure  (=100  lb. 
ammonia)  .... 
18'1 
69-7 
66 
17  0 15 
31  0 
Applied. 
3 Omitted. 
