232  Report  on  the  Field  and  Feeding  Experiments  at  Woburn. 
Table  V. — Pbodece  or  Swedes,  1882  (Rotation,  No.  1), 
afteb  Wheat. 
Plots 
of  One 
Acre. 
i 
With  dung,  made  from  1350  lbs.  straw 
as  litter;  5000  lbs.  mangolds;  1250  1 
lbs.  wheat-straw  chaff,  and  1000  lbs.  i 
decorticated  cotton-cake ' 
2 
1 With  dung,  made  from  1350  lhs.  straw 
) as  litter  ; 5000  lbs.  mangolds ; 1250 1 
j lbs.  wheat-straw  chaff,  and  1000  lbs.  | 
[ of  maize-meal ' 
Pbodcce  pee  Acre. 
Boots. 
Leaves. 
tons.  cwt.  qrs.  lbs.  tons.  cwt.  qrs.  lbs. 
17  624  24123 
17  127  240  3 
3 
With  dung,  made  from  1350  lbs.  straw') 
as  litter;  5000  lbs.  mangolds;  1250 
lbs.  wheat-straw  chaff;  and  artifi- 
cial manure,  containing  two-thirds 
as  much  nitrogen,  and  the  other 
constituents,  of  the  manure  from  I 
1000  lbs.  decorticated  cotton-cake  ; ’ 
namely,  248  lbs.  nitrate  of  soda, 
100  lbs.  of  bone-ash  (made  into 
superphosphate),  624  lbs.  sulphate  of 
potash  and  65  lbs.  sulphate  of  mag- 
, nesia 
19 
13  1 7 
2 9 0 3 
4 
With  dung,  made  from  1350  lbs.  straw') 
as  litter ; 5000  lbs.  mangolds ; 1250 
lbs.  wheat-straw  chaff;  and  artificial 
manure,  containing  as  much  nitro-  1 
gen,  and  other  constituents,  as  the 
manure  from  1000  lbs.  maize-meal  ;f 
namely,  80  lbs.  nitrate  of  soda,  16J 
lbs.  bone-ash  (made  into  superphos- 
phate), 7 lbs.  sulphate  of  potash,  and 
( 11  lbs.  sulphate  of  magnesia  ..  ..J 
18 
3 
6 2 6 0 18 
A glance  at  this  tabular  statement  shows  that  the  heaviest 
crop  was  obtained  on  plot  3,  manured  with  mineral  manures 
equivalent  to  the  mineral  fertilising  constituents  in  1000  lbs. 
of  decorticated  cotton-cake,  and  two-thirds  of  the  nitrogen  in 
that  quantity  of  cake. 
The  next  best  crop  of  swedes  was  grown  on  plot  4,  manured 
with  the  same  amount  of  minerals  and  nitrogen  contained  in 
1000  lbs.  of  maize-meal. 
On  the  acre  (plot  1)  manured  with  cottoncake-dung,  16  cwts. 
2 qrs.  and  20  lbs.  less  roots  than  on  plot  3 were  obtained,  or 
2 tons  6 cwts.  2 qrs.  and  21  lbs.  less  than  on  plot  3,  manured 
with  the  larger  quantity  of  minerals  and  nitrate  of  soda. 
