Report on the Field and Feeding Experiments at Wohurn. 815 
the land under favourable conditions, abundantly repays the 
cost of the cake in the increased production of animal food. 
Rotation No. 2. — Four acres : 1877, mangolds ; 1878, barley ; 
1879, seeds ; 1880, wheat. Again mangolds in 1881, 
The dung for the rotation mangolds was made by eight 
bullocks, two of which, in addition to mangolds and straw- 
chaff, consumed 1000 lbs. of decorticated cotton-cake, two 
others 1000 lbs. of maize-meal as an additional food; the four 
remaining bullocks were fed upon mangolds and straw-chafi 
only. The dung, which was in a fairly rotten state, was put on 
plots 1 and 2 on the 2nd of JNIay ; the mineral manures on 
plots 3 and 4 were sown on the 9th of May, and the nitrate of 
soda was sown around the mangolds on the 5th of July, after 
they had been singled and been well established on the soil. 
The mangold-seed — Gibbs's improved Orange Globe — was 
drilled in on the 14th of May, and came up well. A few gaps 
in the drills were filled up by transplanting, which, being done 
when the soil was in a moist condition, succeeded perfectly 
well, and a beautifully regular plant was obtained on all four 
acres. 
Between the 25th and 28th of October the roots were taken 
up, topped and tailed, and the whole produce of the four acres, 
bulbs and tops, were weighed on uLe 31st of October, when 
the results shown in the Table on next page were obtained. 
A glance at this tabular statement shows that the heaviest 
crop was obtained on plot 3, manured with mineral manures 
equivalent to the mineral fertilising constituents in 1000 lbs. 
of decorticated cotton-cake, and two-thirds of the nitrogen in 
that quantity of cake. 
The cotton- cake-dung applied to plot 1 produced the next 
best crop, and in the two remaining plots the difference in 
the weight of the roots was but trifling. 
Altogether the mangold-crop in 1881 was very satisfactory 
on all four acres. 
Rotation No. 3. — 1878, seeds ; 1879, wheat ; 1880, roots ; 
1881, barley. 
Barleij, 1881. — The mangolds grown in 1880, were fed-off on 
the field by sheep early in spring ; the land was ploughed in 
the beginning of April, and the barley drilled in on the 21st of 
April. Dutch clover-seed was sown between the barley on the 
26th of May. 
No manure was applied to plots 1, 2, and 4. On plot 3 the 
barley was top-dressed on the 27th of May with 124 lbs. of 
nitrate of soda, containing one-third as much nitrogen as the 
manure found in 1000 lbs. of decorticated cotton-cake. 
