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‘New York Acricunruran Expzrrment Station. 
Small as is this yield, the large amount of seed pays for itself 
and enough more for a margin of profit over each of the lots 
seeded lighter. If the rotten tubers were to be counted as part 
of the merchantable, then the profit would be increased consider- 
ably. This but emphasizes our last last year’s conclusions.* 
WHICH ELEMENT OF FERTILITY IS DOMINANT FOR. 
POTATOES? 
‘This experiment was expected to show something in favor of 
either muriate or sulphate of potash as a potato manure, and 
some difference, if there was any, between nitrate of soda and 
ammonium sulphate for the same purpose as well as to compare 
the value of the effect of the elements nitrogen and potash for this 
_ crop. 
Our this season’s crop on the B plats is of no value for this 
experiment on account of poor stand. The yields on F plats may 
be fairly compared. Every controllable factor has been kept 
uniform for all these plats, F' 3-12, except that of fertilizers and 
the rotting of tubers. The plats, fertilizers applied, and crops 
harvested are given in the table below, in which the crop is shown 
as merchantable, rotten, and small tubers, and the merchantable, 
merchantable and rotten combined, and total yields are calculated 
to yields per acre. 
* Highth Annual Report, pages 225-234. 
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