372 Pield Experiments at Woburn in 1889 and 1890. 
in 1889. The swede crop was pulled in 1889 on November 14, 
the crop being heavier than usual, but in 1890 (rotation 4) the 
swedes began to go off very much at the beginning of August, 
"finger and toe" disease manifesting itself very badly, and ulti- 
mately there was no crop at all on any of the four plots of this 
rotation. 
The results obtained are given in Table VI., page 371. 
The very fair crops of mangel taken off this land, although no 
manure whatever has been given to it since 1885, show that 
there is still much in the soil which is capable of removal by crops. 
At the same time the failure of swedes on rotation 4 in 1890, while 
mangel throve without manure, opens up an interesting question 
as to the different nature of growth of these crops and the food 
they respectively feed on in the soil, and their methods of obtaining 
such food. It was on this same rotation (rotation 4) that the swedes in 
1886 produced a very small crop, and the tops were entirely blighted. 
Mangel, on i-he other half, produced however 17 to 19 tons per 
acre. 
C. Further Experiments in Lansome Field on the Compara- 
tive Manurial Values of Decorticated Cotton-cake and 
Maize-meal. 
These experiments began in 1885, and consist of six plots. The 
4-course rotation is adopted, and manure is used only once in the 
rotation. In 1885 it was applied direct for the barley crop, but in 
1889 the swedes grown in 1888 were fed off with sheep on all the 
plots. Plots 1 and 4, however, received no further manure, but on 
plot 2 the sheep had, as in the rotation experiments, 400 lb. per 
acre of decorticated cotton-cake, and on plot 5 400 lb. of maize-meal 
per acre, while on plots 3 and 6 decorticated cotton-cake-meal and 
maize-meal in quantity estimated to supply the same amounts of 
manurial ingredients as the cotton-cake and maize-meal dung 
respectively did, were severally spread as top-dressings just after 
the barley was sown. This was about March 15, 1889. Clover seed 
(red and white mixed) was sown among the barley early in May. 
The barley crop was cut and harvested August 9-31, 1889, and the 
clover crop of 1890 cut twice, viz. on June 20 and August 19, 1890. 
The results for the two years are given in Table VII. opposite. 
Both in tlie barley crop of 1889 and in the succeeding clover of 
1890, the highest produce has been obtained from plot 3, to which 
decorticated cotton-cake meal is applied direct as a manure. The 
results of the duplicate plots 1 and 4 confirm the observation of 
previous years that No. 1 more nearly represents the " unnianured 
yield." Maize-meal fed on the land lias proved better than the same 
spread as manure. 
The.se experiments on the poorer soil of Lansome Field appear 
likely to yield useful evidence to supplement the investigations in 
Stackyard Field, wheie the rotation experiments are in progress. 
