358 Report of Experiments on the Growth of Barley, 
commencing each course ; and one-third, also for the turnip- 
crop only, with a complex manure, consisting of superphosphate 
of lime, salts of potass, soda, and magnesia, sulphate and muriate 
of ammonia, and rape-cake.* 
From half of each of the three plots the whole turnip-crop 
(roots and tops) was removed ; on the other half the roots were 
consumed on the land by sheep, and the uneaten leaves spread 
and ploughed in. In the first course clover was grown as the third 
crop; but in the second, third, fourth, fifth, and sixth courses, 
instead of clover, half of each plot was sown with beans, and the 
other half left fallow. 
It would be out of place here, to describe the results obtained 
in these experiments on rotation, any more than is essential to 
explain the conditions under which the barley was grown. The 
results which will be noticed relating to that crop are only those 
obtained on the portion of each of the three plots from which 
the turnips were entirely removed, and on which, in the later 
courses, beans (not fallow) replaced the clover. The facts of 
chief importance in relation to the other crops are as to the 
quantity of turnips removed from the land before the growth of 
the barley. The average produce of turnips per acre over the 
first five courses (the crop failing in the sixth) was — 
Without Manure. 
With 
Superpliosphate 
alone. 
With Mixed 
Manure. 
Tons. 
1 
Civts. 
6i 
Tons. Cwts. 
6 Ul 
Tons. Cwts. 
12 2i 
0 
lOi 
1 8 
2 2J 
Total .. .. 
1 
17^ 
8 4J 
U 5 
Under each of the three conditions as to manuring, the produce 
of turnips was much less in the later than in the earlier courses. 
This was, probably, partly owing to the higher condition of the 
land, dependent on previous manuring and cropping, at the com- 
mencement of the first than of the subsequent courses ; but it 
was partly due to the characters of the seasons. Indeed, in 
* Quantities per acre as under — 
Bone- 
ash. 
Sulph- 
uric 
Acid. 
Pearl- 
ash. 
Sulph- 
ate 
Potass. 
Sulph- 
ate 
Soda. 
Sulph- 
ate 
Mag- 
nesia. 
Sulph- 
ate 
Am- 
monia. 
Muri- 
ate 
Am- 
monia. 
Eape- 
cake. 
lbs. 
lbs. 
lbs. 
lbs. 
lbs. 
lbs. 
lbs. 
lbs. 
Ibi. 
100 
100 
100 
100 
100 
1000 
160 
120 
300 
100 
100 
100 
100 
2000 
3r(l, 4th, Sth, & Ctli Courses 
200 
150 
300 
200 
100 
100 
100 
200O 
