Report on the Field and Feeding Experiments at Wohurn. 241 
The gain here was rather more than in the case of the wheat 
experiment, but still small. The duno; was removed on Der 
cember 12th, and kept under cover. On February Gth it was 
weighed, 30 cwts. 2 qrs. 15 lbs. being the amount, and was 
spread out on plots 10 b and 11b in quantities calculated to 
supply to them 100 lbs. and 200 lbs. of ammonia per acre re- 
spectively. On February 2.")th the land was ploughed a second 
time, the dung being thus ploughed in. After harrowing and 
rolling, mineral manures were sown on March 2Gth, and the 
seed drilled in on March 28th, at the rate of 1) pecks per acre, 
of " Oakshott's Golden Melon." The nitrogenous top-dressings 
were sown on April 27th. Shortly afterwards wirevvorms ap- 
peared in great numbers, and these had to be caught and 
destroyed. The plots were next hoed and harrowed. The barley 
came into ear about June 20th ; the unmanured and mineral 
manured plots looked very poor and short in straw, and, as in 
the case of the wheat, plots 8 A and 9 A were the best, 8 A being 
rather the more forward ; 5 and 6 looked also good crops. The 
barley was very little damaged by the storm of August 4-5. 
The crop was cut on the 25th of August, and carted the next day 
in excellent condition. On October 20th it was threshed and 
the straw weighed, the corn being weighed on October 23rd and 
24th. The results are given in Table II., page 242. 
With one exception the yield was lighter than in 1883. The 
unmanured plots gave for the ninth successive crop 21*8 bushels 
and 22'5 bushels, as against 32'3 and 33*3 bushels in 1884. 
Mineral manures gave no increase, 21 bushels being the produce. 
200 lbs. ammonia salts per acre increased it to 34'5 bushels, 
and 275 lbs. nitrate of soda to 37'2 bushels; minerals added 
gave a further increase in each case to 48 and 50 3 bushels ; 
while the same minerals with a double quantity (400 lbs.) of 
ammonia-salts gave 58 7 bushels, and a double quantity (550 lbs.) 
of nitrate of soda, G4 5 bushels, the latter being the highest 
produce of any of the plots. It will be observed that in the 
case of the barley, nitrate of soda did better than ammonia- 
salts. Where nitrogenous manures, though applied with minerals 
in 1884, were now omitted, the yields were 39'3 and 34'8 
bushels only. With farmyard manure the crops were lighter 
than in 1884. 
The Rotation Expeeiments. 
Since in 1885 Rotations 3 and 4 completed the second four- 
course rotation, beginning as they did in 1878 with seeds and 
roots respectively, while Rotations 1 and 2 had already com- 
pleted this course, Nos. 3 and 4 will be considered first. 
VOL. XXII. — S. S. R 
