396 
The Woburn Field Experiments , 1913. 
1 tons of lime (in two separate applications, 1897 and 1905) 
16*3 bushels (plot 2bb), while with 4 tons altogether of lime 
applied in two dressings in 1897 and 1912 respectively, (plot 
2b) as much as 34*3 bushels per acre were obtained, this being 
rather more than followed the use of the same amount of 
sulphate of ammonia along with minerals and 1 ton of lime 
per acre in 1905 (plot 5b, 31*5 bushels per acre). The same 
amount (4 tons per acre) of lime with the double dressing of 
sulphate of ammonia (plot 8aa) gave no higher produce, viz., 
34T bushels per acre. On plot 5aa the 1 ton per acre of lime 
applied in 1905 would seem to be worked out. It is noticeable 
that this year more straw was obtained from the use of sulphate 
of ammonia in conjunction with lime than 'from nitrate of 
soda. 
Comparing plots 10a and 11a, an advantage would appear 
to accrue from the use of potash in preference to phosphate ; 
the experience of 1912 was in the same direction. 
The farmyard manure plot' (lib) gave decidedly the highest 
yield of all, this being 40’2 bushels of corn and 23| cwt. of 
straw per acre, and much in excess of the return from rape dust 
(24 - 5 bushels of corn with 13 cwt. of straw per acre). 
The valuation of the corn was adversely affected by the 
inferior condition in which the barley crop was harvested, and 
it will be observed that in no case was the average for the district 
reached. This was due entirely to the fact that the crop was 
threshed direct out of the field. 
Rotation Experiments.— The Unexhausted Manurial 
Value of Cake and Corn ( Stackyard Field). 
(a) Series C. 1910, Swedes, fed on by Sheep with Cake and 
Corn respectively ; 1911, Barley ; 1912, Green Crops ; 
1913, Wheat. 
? i ■ . , 
The crop of 1912 was trifolium cut for hay, but, as stated 
in last year’s report, the second green crop— rape— which it 
was intended to grow, did not come np well and was ploughed 
in. 
On October 26, 1912, “ Red Standard ” wheat was drilled at 
the rate of 10 pecks per acre, This grew well, and the crop 
was cut on August 15, 1913. The wheat was threshed, the 
corn-fed plot on August 30, the cake-fed plot on September 17. 
The results are given in Table III. 
It will be seen that the corn-fed plot gave 4 bushels more 
corn and 2 qrs. more straw per acre than did the cake-fed plot. 
It may be remembered that a similar result — one quite contrary 
to expectation — was obtained with the two previous crops, 
trifolium and barley, of this series. 
