130 STORRS AGRICULTURAL EXPERIMENT STATION. 

SPECIAL NITROGEN EXPERIMENT BY THE STATION ON HUNGARIAN 
GRASS. 
The field used for the special nitrogen experiment on Hun- 
garian grass is the same as was used during the past three years 
for similar experiments on mixed meadow grasses.* 
DETAILS OF THE EXPERIMENT. 
The experiment was similar to the special nitrogen experi- 
ments with corn, described in previous Annual Reports of the 
Station.t It will be observed that plots 1 to 5, on which nitro- 
gen, phosphoric acid, and potash are applied singly and two by 
two, and also plot 6 with mixed minerals, were omitted from 
these experiments. These soil test plots were omitted for lack 
of room in the field, and not because interesting results might 
not have been expected from them. 
The general plan of the experiment was to apply the same 
quantities of mineral fertilizers (potash and phosphoric acid) to 
all the plots except two, which were left unmanured. Nitrogen was 
added to all of the fertilized plots, except two, at the rate of 25, 
50 and 75 pounds per acre. The whole experiment, as planned, 
includes the use of nitrogen in the three forms: nitrates, ammonia 
salts, and organic nitrogen. In the experiment with meadow 
grasses (1890-91-92), the three plots of the organic nitrogen 
group were omitted from the results, as there was much clover 
with the grasses. No fertilizers were applied on this part of the 
field during 1891 and 1892, and the amount of clover in the crop 
of 1892 was considerably reduced. 
The field has a gentle slope to the south and southwest, but 
not enough to occasion the washing of fertilizers from one plot 
to another. The plots contained one-eighth acre each, and were 
laid out so as to conform to the slope of the field. They are 
302.5 feet long by 18 feet wide, with unfertilized strips 3 feet 
wide between plots. 
The soil is a medium eae loam, and the sub-soil is slightly 
clayey and adhesive. ‘The soil was in a comparatively low state 

* Reports of this Station, 1890, pp. 44-56; 1891, pp. 29-40; 1892, pp. 36-46. 
+ See Reports of this Station, 1888, pages 72 to 89; 1889, pages 103 to 119; 1890, pages 71 to 74. 
