Report on the Field and Feeding Experiments at Woburn. 345 
Plot 11a (no manure for last two jears). Barley good, 
standing up well. 
Plot 11b (large quantity of dung every year). Barley heavy, 
about one-half down on ground. 
The fine weather of August caused the barley to come on 
Ijetter, and on August 21st and five following days it was cut. 
•Carting began on September 7th, but rain prevented all being 
got in at once. By September 14th all the barley had been 
carted, stacked, and thatched. It was threshed in the field on 
October 25th, the straw being at once weighed. The corn was 
stored and weighed on November 2nd, the same precautions 
i)eing adopted as in the case of the permanent wheat. 
Table II. (p. 346) shows at once the different treatment of the 
several plots, with the resulting produce of corn and straw 
obtained in 1883. 
The barley crop in 1883 at Woburn was rather above an 
average crop. One of the two unmanured plots upon which 
barley had been grown in succession in the preceding six years 
produced 30'3 bushels of dressed barley, weighing nearly 53 lbs. 
per bushel, and 18 cwts. 2 qrs. 14 lbs. of straw per acre ; the 
second unmanured plot (plot 7) produced 22'8 bushels of 
<lressed barley and l3 cwts. 3 qrs. 22 lbs. of straw per acre, con- 
firming the experience of previous years, and showing that 
plot 1 is naturally more productive than plot 7. The average 
produce of the two unmanured plots, Nos. 1 and 7, in round 
numbers amounted to 2r)"5 bushels of dressed barley, and 
16 cwts. 1 qr. 4 lbs. of straw per acre. 
Ammonia-salts alone (plot 2) and nitrate of soda alone (plot 3) 
largely increased the crops, the .former giving an increase 
of 24'1 bushels per acre over the average produce of the two 
unmanured plots, and the latter an increase of 24*6 bushels. 
It will also be seen that nitrate of soda alone on plot 3 gave a 
heavier crop of straw than the ammonia-salts alone on plot 2. 
The minerals alone on plot 4, as in previous years, had no 
effect on the yield of corn or straw in 1883. The addition of 
nitrate of soda to minerals on plot 6 had the effect of raising 
the produce in barley to nearly 56 bushels per acre, and that of 
straw to 2 tons 3 cwts. 2 qrs. 16 lbs. 
In conjunction with minerals, ammonia-salts on plot 5 also 
gave a large increase both of corn and straw, but the increase 
in straw on plot 5 was less conspicuous than on plot 6, manured 
with minerals and nitrate of soda. 
In the five years previous to 1882, plots 8 and 9 had been 
annually manured with a heavy dressing of mineral manures, 
and a large dose of ammonia-salts ; or with minerals and 
nitrate of soda. In 1882 these plots were divided into two 
