250 The Wohirn Field Experiments, 1907. 
As regards straw, the nitrate plots gave rather the higher 
yields, though sulphate of ammonia was not much behind ; 
farmyard manure also gave a good yield, viz., 28 cwt. per acre. 
The valuation of the corn was made on the basis of 35s. 
per quarter of 504 lb. The wheats were described as, on the 
whole, in exceptionally good condition. The four best samples 
were good average wheats for the season, possessing both 
strength and “ bloom.” The best quality was that grown by 
rape dust, the unmanured (1 and 7) and minerals only (4) plots 
coming next, along with sulphate of ammonia and minerals 
(5a, 5b). Farmyard manure (lib) was but little inferior. 
Nitrate of soda gave corn generally inferior in quality, and 
the weight per bushel was lower than in any other case. 
Continuous Growing of Barley {Stackyaud Field), 
1907 (31st Season). 
Farmyard manure was carted on to plot 11b on March 15, 
1907. The actual weight applied, to give 100 lb. ammonia 
per acre, was 5 tons 17 cwt. per acre. Chevalier Barley, 9 pecks 
per acre, was drilled in on March 20, the mineral manures being 
given at the same time and harrowed in. The top-dressings 
of sulphate of ammonia and nitrate of soda were applied, as in 
the case of the wheat, the heavier dressings on May 7 and May 
18, and the lighter ones on May 18 only. For a considerable 
time, and during the almost sunless months of May and June, 
the barleys were a very moderate lot ; the farmyard manure 
plot (11b), however, was distinctly the best. They all im- 
proved greatly as the season went on, and though they could 
not be cut until September 10, they produced yields very 
similar to those of the exceptionally good crop of 1906. The 
results are given in Table II, page 247. 
The unmanured produce (average of 1 and 7) was I9‘0l 
bushels per acre, minerals only (4) giving less, viz., 16’3 
bushels. 
Nitrate of soda (1 cwt. per acre) produced 31 bushels, and 
2 cwt. per acre 36'4 bushels, the former, with minerals, 
yielding 35’6 bushels, while the heavier dressing, with 
minerals, gave up to 42'8 bushels. 
With sulphate of ammonia, more especially in conjunction 
with lime, the results were particularly interesting. When 
used alone, sulphate of ammonia gave no crop at all, but the 
small dressing of 5 cwt. per acre of lime, given in 1905, yielded 
13'5 bushels. The 1897 application of 2 tons per acre of lime 
produced a crop of 25-2 bushels, and, unlike the result noticed 
with wheat, the renewal in 1905 of this dressing did 
further benefit, 28*4 bushels being the yield. Minerals without 
lime, when sulphate of ammonia was used (5a), continued to be 
