Ucport on the Field Experiments at Wohurn. 303 
tons per acre. A portion (at the rate of 6 tons per acre) was 
carted off each plot of the upper half (plots 1, 2, 3, 4,) and the 
remainder fed on the land by sheep with additional foods as 
follows : — 
Plot 1 (half-acre) , . with 200 lbs. decorticated cotton-cake 
„ 2 „ , , , „ 200 lbs. maize-meal 
„ 3 „ . , , „ no purchased food 
» ^ }> ' • ' » » » 
A little wheat-straw chaff was given to the sheep, and plots 
3 and 4 were manured later for barley with artificials equivalent 
to the cotton-cake and maize-meal dung respectively. 
The swedes on the lower half (plots 5, G, 7, and 8) were 
carted off entirely. Barley — 8 pecks per acre — was drilled on 
April 1, the mineral manures being put on plots 3 and 4 on 
April 4, and the nitrogenous top-dressing (nitrate of soda) on 
May 8. On the latter date also broad clover — 16 lbs. to the 
acre — was sown over all the plots. The barley was harvested 
September 8-12, and the results are given in Table III. on 
page 304. 
It will be noticed at once that the produce of the manured 
plots, 1, 2, 3, and 4, was considerably higher than that of the 
unmanured, and that cotton-cake continued to give indications 
of marked superiority over maize-meal in the case of a barley 
crop following the feeding-off of roots. The superiority is more 
clearly pronounced than in last year's experiments, and it would 
certainly appear now that the investigations are tending in the 
right direction. The yields of the four unmanured plots are 
very nearly alike, and about five bushels in excess of the con- 
tinuous barley plots manured with minerals only. 
Rotation II. — Four acres. 1885, swedes (2 acres), mangolds 
(2 acres); 1886, bai'ley ; 1887, tares (2 acres), peas (2 acres); 
1888, wheat. 
The tares and peas in 1887 were both reaped, and wheat — 
8 pecks per acre — was drilled October 26 and 27. The crop — 
as in the continuous wheat expei'iments — suffered very much 
from the unfavourable season. The yield was low and shows 
no great differences in the plots, except that the yield after peas 
is rather higher than after tares. 
The results are given in Table IV. on page 305. 
Rotation III. — Four acres. 1886, tares (2 acres), peas 
(2 acres); 1887, wheat; 1888, swedes (2 acres), mangolds 
(2 acres). 
The mangold seed — 6 lbs. per acre — was drilled April 28. 
and the swede seed — 3 lbs. per acre — on May 21, the latter 
with 3 cwts. per acre of mineral superphosphate. But small 
