286 The Woburn Field Experiments, 1905 and 1906. 
whereas the nitrate of soda did not. As usual, nitrate of soda 
gave comparatively the larger yield of straw. The need of 
liming plot 8 was thus emphasised. Plot 4 (minerals only) 
w r as not reliable owing to increasing overgrowth of trees. The 
result from rape cake (plot 10b) was not equal to that from 
farmyard manure (plot lib). 
Though the lime applied to the new plots 2aa, 2bb, 5b, 8aa, 
and 8bb, could hardly be said to have got into full action, it 
is worthy of note that while the 5 cwt. on plot 2aa effected 
no change, the application of 2 tons on plot 2bb and of 1 ton 
on plot 5b seemed temporarily to retard the crop. On the other 
hand the 10 cwt. on plots 8aa and 8bb gave a distinct increase 
of 14 to 18 bushels of corn, besides markedly improving its 
quality. The rainfall for the year was 19*31 in. 
When the corn was valued, it was found that farmyard 
manure gave not only the largest crop, but the best quality, 
while nitrate of soda alone (plot 3) was the poorest quality 
of all. It is specially noticeable that plots 3, 6, and 9 (on all 
of which nitrate of soda was used) gave the highest proportion* 
of tail corn, as also the lowest weight per bushel. On the 
whole, the wheat from the farmyard manure and rape cake 
plots was the best, and then came that from the ammonia 
plots, where lime in addition had been used. The wheats 
were, taken together, much better than the barleys of the same 
year, and the five lots that stood highest in the valuation were 
above the average of the wheats of the district. The complete 
results are given in Table I., page 284. 
1906 (30th Season). 
The details of cultivation, &c., were much as just recorded 
for 1905. The rainfall for the year was 25*23 in., as against 
19*31 in. in 1905. A good deal of rain (3*06 in.) fell in January 
(which had been a dry month in 1905), as also in February 
and March (1*69 in. and 1*67 in. respectively). As in 1905, 
there was a great deal of rain in June (3*48 in.), but July 
was very hot and dry, and brought the crop early to maturity. 
The seed, “ Square Head’s Master,” obtained from Yorkshire, 
was drilled at the rate of 9 pecks per acre, on October 11, 
1905. The ammonia plots (2, 5, 8), as usual, looked much poorer 
than the rest, of which plot lib (farmyard manure) showed 
most prominent, then plot 10b (rape cake). Plot 3 (nitrate of 
soda alone) at this stage looked inferior to the other nitrate plots 
(6 and 9) where minerals as well had been used. Already 
at this point the influence of the small dressing of 5 cwt. of 
lime to plot 2aa had made a wonderful difference as compared 
with the unlimed plot 2a, but the repetition of the 2 tons of 
lime on plot 2bb did not seem to make it any better than plot 
