The  Wobum  Field  Experiments,  1909. 
367 
Table  II. — Continuous  Growing  of  Barley,  1909 
{^?)rd  Season). 
(Barley  grown  year  after  year  on  the  same  land,  the  manures  being  applied 
every  year.) 
Stackyard  Field — Produce  per  acre. 
Head  com 
Tail 
corn 
Straw, 
chafif, 
&c. 
Value 
per 
Plot 
Manures  per  acre 
No.  of 
bush. 
Weight 
per 
bush. 
bs 
'S 
quarter 
on  basis 
of 
29s. 
1 
Unmanured  .... 
8-2 
Lb. 
47-2 
Lb. 
37 
C.  q.  lb. 
8 1 2 
s.  d. 
16  0 
2a 
2aa 
Sulphate  of  ammonia  (=25  lb. 
ammonia)  .... 
As  2a,  with  5 cwt.  lime,  Mar., 
1905,  repeated  April,  1909  . 
6-6 
52-0 
20 
0 2 8 
6 3 9 
23  0 
2b 
As  2a,  with  2 tons  lime,  Dec., 
1897  
11-9 
50-0 
32 
11  3 25 
22  0 
2bb 
As  2b,  with  2 tons  lime  (re- 
peated), Mar.,  1905 
30-6 
49-7 
221 
15  2 20 
22  0 
3a 
Nitrate  of  soda(=50  Ib.ammonia) 
15-9 
61-0 
227 
20  1 27 
22  6 
3b 
N itrate  of  soda(=25  Ib.ammonia) 
14-6 
60-7 
276 
14  2 5 
22  6 
4 
Mineral  manures  (superphos- 
phate 3 cwt.,  sulphate  of 
potash  1 cwt.) 
7-7 
47-7 
77 
12  3 6 
16  0 
5a 
Mineral  manures  and  sulphate 
of  ammonia  (=25  Ib.ammonia) 
2-4 
520 
12 
1 3 13 
23  0 
6aa 
As  6a,  with  1 ton  lime.  Mar., 
1905  
28-8 
510 
298 
25  0 16 
22  0 
5b 
As  6a,  with  2 tons  lime,  Dec., 
1897  
27-7 
50-7 
184 
23  2 12 
20  0 
6 
Mineral  manures  and  nitrate 
of  soda  (=26  lb.  ammonia)  . 
27-2 
51-0 
162 
24  3 6 
22  0 
7 
Unmanured  .... 
7-9 
50-0 
20 
7 3 16 
20  0 
8a 
Mineral  manures  and  (in  alter- 
nate years)  sulphate  of  am- 
monia (=50  lb.  ammonia)  . 
7-21 
46'9 
24 
4 2 11 
16  0 
8aa 
As  8a,  with  2 tons  lime,  Dec., 
1897  
27-8  • 
60-3 
88 
18  3 7 
20  0 
8b 
Mineral  manures,  sulphate  of 
ammonia  (=50  lb.  ammonia) 
omitted  (in  alternate  years)  . 
6-2» 
48-0 
12 
4 0 3 
16  0 
8bb 
As  8b,  with  2 tons  Ume,  Dec., 
1897  
17-22 
49-5 
60 
15  3 25 
20  0 
9a 
Mineral  manures  and  (in  alter- 
nate years)  nitrate  of  soda 
(=50  lb.  ammonia) 
34-4* 
50-5 
87 
36  1 18 
22  0 
9b 
Mineral  manures,  nitrate  of 
soda  (=  50  lb.  ammonia) 
omitted  (in  alternate  years) . 
22-32 
49-9 
79 
15  2 3 
23  0 
10a 
Superphosphate  3 cwt.,  nitrate 
of  soda  (=25  lb.  ammonia)  . 
22-4 
50-5 
82 
19  2 2 
23  0 
10b 
Rape  dust  (=26  lb.  ammonia)  . 
24-0 
50-4 
92 
17  0 19 
23  0 
11a 
Sulphate  of  potash  1 cwt.,  ni- 
trate of  soda  (=25  lb.  am- 
monia) ..... 
36-9 
50-2 
131 
34  3 6 
22  6 
11b 
Farmyard  manure  ( = 100  lb. 
ammonia)  .... 
45-4 
61'8 
106 
37  0 11 
4 
24  0 
Applied. 
Omitted. 
