206 STORRS AGRICULTURAL EXPERIMENT STATION. 
Flan of the experiment.—The arrangement of the plots on 
the experimental field, and the method of fertilizing each plot, 
are illustrated by the diagram below. ‘The field is divided into 
five plots, each one-eighth acre in size, with strips 3.3 feet 
wide between them. In planting the field these strips between 
the plots, as well as similar strips at the sides and ends of the 
field, are planted the same as the plots, but no manure nor fer- 
tilizer of any kind is used on them, and the crop which grows 
on them is removed before that on the plots. In carrying out 
these experiments the same crop will be grown on the whole 
field in the same year, and the crops will vary from year to 
year in the following order of rotation: Corn, potatoes, oats and 
peas for fodder, and soy beans. 
Diagram illustrating arrangement and method of fertilizing plots 
im experiment on soil improvement. 
The narrow strips at the sides and ends of the plots are without fertilizer. 

| 
Plot K. ‘‘Complete”’ fertilizer, 1200 Ibs. per acre. 

SESS 
—— SSS SSS SSS SSNS 
| PLot L. Stable manure, 12 tons per acre. ; | 
SS CS -sevue 
Plot M. No fertilizer, but clover or other legume for green ma- 
nuring. 
eee s 
Plot N. Mineral fertilizers, 700 lbs, per acre, and rye for green 
manuring. 

PLor P. Mineral fertilizers, 700 lbs. per acre, and clover for green 
manuring. 
SSS 
On plot K will be used a ‘ complete ’’ fertilizer, which will 
be composed of several of the various ingredients commonly 
used in different chemical fertilizers, in quantities sufficient to 
supply liberal amounts of phosphoric acid, potash, and nitrogen 
per acre. On plot L, will be used good mixed stable manure 
at the rate of twelve tons per acre. On plot M no fertilizer 
will be used, but clover or some other legume, sown either in 
the spring with the crop, as with oats, or in the fall as a catch 
crop after the removal of the regular crop, will be allowed to 


