140 Report on the Field and Feeding Experiments at Wohurn. 
when the roots had to be taken up in November they were small 
and weighed less per acre than I anticipated, judging from the 
luxuriant but deceptive appearance of the tops. 
EoTATioN Mangolds, 1878, after Wheat, 
Produce pee Acre. 
Roots. 
Leaves. 
'With dung, made from 1728 lbs. straw] 
as litter ; 5000 lbs. mangolds ; 1250 
lbs. wheat-straw chaff, and 1000 lbs. | 
decorticated cotton-cake J 
With dung, made from 1728 lbs. straw] 
I as litter; 5000 lbs. mangolds ; 1250 
lbs. wheat-straw chaff, and 1000 lbs. j 
of maize-meal J 
'With dung, made from 1728 lbs. straw' 
as litter; 5000 lbs. mangolds ; 1250 
lbs. wheat-straw chafif; and artifi- 
cial manure, containing two-thirds 
as much nitrogen, and the other 
constituents, of the manure from 
1000 lbs. decorticated cotton-cake ; 
namely, 248 lbs. nitrate of soda, 
100 lbs. of boue-ash (made into 
superphosphate), 62J lbs. sulphate of 
potash and 65 lbs. sulphate of mag- 
nesia 
With dung, made from 1728 lbs. straw^ 
as litter ; 5000 lbs. mangolds ; 1250 
lbs. wheat-straw chaff ; and artificial 
manure, containing as much nitro- 
gen, and other constituents, as the 
manure from 1000 lbs. maize-meal ; 
namely, 80 lbs. nitrate of soda, 16J 
lbs. bone-asii (made into superphos- 
phate),? lbs. sulphate of potash, and 
^ 11 lbs. sulphate of magnesia .. 
tona. cwts. qre. lbs. 
4 10 1 8 
4 9 3 18 
tons. cwts. qre. lbs. 
2 2 1 14 
2 1 0 IT 
7 19 0 26 
2 19 1 8 
5 15 3 22 
3 3 0 
It will be seen that the larger dose of nitrate of soda and 
minerals in addition to dung, in round numbers, produced 
8 tons of mangolds, topped, tailed, and cleaned ; the smaller 
dose of nitrate of soda not quite 6 tons ; and the remaining plots 
about 4J tons of clean mangolds per acre. 
This is a great falling off in comparison with the last year's 
crop, as will be seen by the subjoined tabular results, showing- 
the produce in mangolds on the four experimental plots in th 
last two seasons : — 
