252 The Woburn Field Experiments, 1907. 
maiiurial value between these two foods when they wei’e fed to 
bullocks in feeding-boxes and subsequently carted out to the 
field as farmyard manure and used for growing a root crop. 
While the former plan illustrated, so to say, the circumstances 
that would prevail in the case of the light land farmer, who 
feeds his roots off on the land with cake or corn, the latter 
illustrated the case of the farmer who feeds cake or corn to his 
bullocks in the yards and carts out the dung on to his land. 
It was hoped in this way to attack the problem of the 
unexhausted manurial value of purchased foods according as 
whether they were fed on the land by sheep, or else given as 
food to stock at the homestead. 
For several years past the lower half of the area had been 
cropped alike, until, a level condition of fertility having been 
obtained all over, the new experiment was ready to be begun. 
This commenced in 1907 with the Root crop on Rotation II., 
it being manured with farmyard manure made respectively 
with decorticated cotton cake (plot 5), maize meal (plot 6), 
and with roots, chaff and litter only, without cake or corn 
(plots 7 & 8). 
A. — UPPER HALF (Sheep-feeding). 
Rotation I. 1907, Green crop {Mustard). 
This crop followed the barley crop of 1906. The rotation 
not having previously received lime, 2 tons of Buxton lime to 
the acre were carted on and spread at the end of February, 
1907. Mustard was drilled on July 24, 20 lb. of seed to the 
acre, and with the exception of plot 2, which was patchy, a 
nice crop was obtained which w^as cut and weighed green. 
The results are given in Table III. 
Table III. — Rotation I. Mustard, 1907. 
stackyard Field. 
Plot 
Green produce per acre 
T. 
c. 
q. 
lb. 
1 
After barley— decorticated cotton cake plot . 
4 
10 
3 
0 
2 
,, ,, maize meal plot 
3 
4 
3 
0 
3 
„ „ no cake or corn 
.5 
fi 
3 
0 
4 
” ... 
4 
15 
3 
14 
Rotation II. 1907, Swedes. 
On June 3, 1907, 4 cwt. per acre of basic superphosphate 
and 1 cwt. per acre of sulphate of potash were given to the 
land, and “ Monarch ” swede seed was drilled at the rate of 
4 lb. per acre. A fair plant was obtained, and though spurry 
