New York AaricunturaL Experiment Srartion. 285 
NITROGEN TEST PLATS. 
These plats are shown in the accompanying diagram, numbered 
from 1 to 24. 
_ The eround occupied poe very gently to the east, while a 
very few rods in | the opposite direction the slope changes to the 
west. 
Several non-nitrogenous PreHeet were put into this series by 
extending the number of plats for the purpose. 
The fertilizers were sown Aprileighteenth, with two exceptions, 
which were only delayed until the next morning. 
Up to May fourth no particular difference could be pointed out 
in the growth on the plats. On that date some very slight differ- 
ences chiefly of No. 3 from intervening strips and its neighbors. 
This was so small as to be barely appreciable. 
_ By May tenth the nitrogen applications had begun to make 
their presence felt, and the grass was distinctly better where 100 
pounds per acre was sown, than where not sown, while the 200 
‘and 800 pounds per acre had given a still ranker growth, and 
were noted as being about equal in their effect on the grass. The 
applications of 400 pounds per acre was showing rather less than 
the two or three hundred pounds, but more than 100 pounds. Plat 
No. 4 seemed a very little taller and darker color than the unfertil- 
ized strips. There was no more difference with plats 10 and 11. 
The non-nitrogeneous applications gave no appreciable difference in — 
appearance at this time, nor, indeed, at any time during growth. 
On June twenty-fifth the grass on plats to which nitrogen salts 
were applied, had become lodged only a very little on plats 1-3, 
but more on 7-9, 13-15 and 19-21. The outlines of plats 4 and 5 
could be made out by the darker color, while on plats 10 and Il a 
ranker growth than on the intermediate unfertilized was more 
- marked than on plats 4 and 5. 
These plats were sampled and harvested the same as the above 
except that only the green grass was weighed and the following 
differences between time of sampling and cutting the grass. 
Sampled grass on plats 1, 2, 3, 4, 21, 22, 23, 24, July ninth. 
Cut and weighed grass on plats 1, 2, 3, 22, 23, 24, July ninth. 
Sampled all other plats July tenth. 
Cut all other plats July tenth, except 1 and 12 which were cut 
as soon as the dew dried off on the eleventh. 
