and Permanent Pasture. 
£9 
' It appears from these experiments : — 
1. That nitrate of soda gave nearly the same increase as 
sulphate of ammonia : that is, about 2 tons more than the 
produt c from the two unmanured plots. 
2. That the two unmanured j)lots yielded almost exactly 
the same weight of clover. Plot No. 5 produced 5 tons 
12 cwts. oG lbs.; and Plot 11, the second unmanured plot, 
5 tons 12 cwts. and 1(5 lbs.. As one of the unmanured plots 
was at the end of the piece of ground selected for the experi- 
.ments and the other occupied the middle of the 11 plots, the 
soil in the several plots may be presumed to have been naturally 
uniform in its general character and productive powers. 
3. That common salt, which in the previous year showed 
little effect upon the clover, gave an appreciable increase in 
18(>8, both in the first and in the second cutting. 
4. That the heaviest crop was again produced by a mixture 
of superphosphate of lime and muriate of potash. 
5. Tliat on all the three plots where salts of potash were used, 
namel}-, Plot G (muriate of potash), Plot 7 (sulphate of potash), 
and Plot 10 (muriate of potash and superphosphate), but espe- 
cially the last-named plot, the second cutting of clover weighed 
more than the second cutting from the unmanured plots. 
6. That, on the other hand, the two plots which received a 
dressing of nitrate of soda yielded less clover on the secozid 
cutting- than the unmanured plots. 
In comparing the weights of green clover-seeds in 1868 vritli 
those obtained in the preceding year, it appears that the general 
experience gained at Escrick in 1867 is fully borne out by the 
results obtained in the more recent experiments of 1868. 
In 1867, however, the yield of all the experimental plots was 
much greater than in 1868 ; a difference to be accounted for by 
the unusually dry summer of the latter year ; the extremely 
dry and warm weather which prevailed between the first and 
second cuttings fully explaining the miserable yield of clover on 
the 23rd of July, when the second cuttings were made. It is 
interesting, however, to notice that even under such adverse 
circumstances more clover was cut on the 23rd of July on the 
plot dressed with superphosphate and muriate of potash than on 
any other plot, and that the smallest crop was obtained on the 
second cutting of Plot 1, dressed with nitrate of soda. 
In a dry season, neither nitrate of soda nor sulphate of am- 
monia acts nearly so beneficially upon vegetation as in mo- 
■derately wet weather ; for it appears that these saline matters, 
unless much diluted by the rainfall and thoroughly diffused in 
the soil, cannot exert a beneficial influence even upon those 
crops upon which they produce the best effect in a favourable 
