Report on the Field and Feeding Experiments at Wohurn. 293 
Rotation No. 2. — Four acres. 1885, swedes (two acres), 
mangolds (two acres) ; 1886, barley (four acres). 
The swedes on the one half of the rotation had been grown 
in 1885 with 3 cwt. mineral superphosphate per acre, the 
produce being : — 
Plots. 
Manure. 
Produce of Swedes 
per Acre in 1885. 
1 
2 
3 
4 
Artificial equivalent of cotton-cake dung . . 
Artificial equivalent of maize-meal dung . . 
tons cwt. qrs. lbs. 
17 0 2 22 
17 0 0 16 
14 7 2 4 
13 15 2 10 
5J tons of the swedes were removed off each ^-acre plot, i.e., 
li tons per acre, and the rest fed-off on the land by sheep, 
as follows : — 
Plot 1 (half-acre) — 3 tons swedes with 200 lbs. decorticated cotton-cake. 
„ 2 „ „ „ „ maize-meal. 
„ 3 „ — 1 ton 14 cwt. with no purchased food. 
„ 4 „ — 1 ton 8 cwt. „ „ „ 
On plots 3 and 4, artificial equivalents of the cotton-cake and 
maize-meal dung respectively were applied to the succeeding 
barley. A portion only of the crop was consumed in order 
that the land should not become over-rich, as was believed to 
have been the case in the previous courses of rotation. The 
mangolds grown in 1885 without manure on the other four plots 
of the rotation were got up by November 7th, and carted off. 
The produce of mangolds, per acre, in 1885 was : — 
Tons cwt. qrs. lbs. 
. Plot 1.— Cotton-cake plot 11 6 0 12 
„ 2. — Maize-meal plot 11 1 0 24 
„ 3. — Artificial equivalent of cotton-cake dung 13 1 0 20 
„ 4. — Artificial equivalent of maize-meal dung 10 16 2 8 
The sheep were eating off the swedes from January 1st to 
January 28th, 1886. The land was then ploughed and barley 
drilled over the whole of the rotation. Mineral manures had two 
days previously been sown on plots 3 and 4.* The barley came 
up well and was a good crop. Nitrogenous manures f were sown 
on May 14th upon plots 3 and 4, to complete, with the mineral 
manures, the artificial equivalents of the cotton-cake and maize- 
meal dung respectively. The barley was cut and carted in 
excellent order on August 27th ; it was threshed and weighed 
on October 20th-22nd. The results are given in Table IV : — 
* Bone-ash superphosphate, sulphate of potash, and sulphate of magnesia, 
t Nitrate of soda. 
