A STUDY OF FACTORS INFLUENCING THE YIELD OF POTATOES 1209 



TABLE 45. RELATION OF SUN-SPROUTING TO YIELD ON 166 MONROE COUNTY FARMS IN 1913 



the sprouted seed is probably no more than might be due to the increased 

 amounts of fertilizer and seed used on these same farms. Therefore it 

 cannot be said, on the basis of this difference in yield, that in 1913 sun- 

 sprouting paid for the extra labor involved. 



A similar study of this factor for 40 farms in Franklin and Clinton 

 Counties in 1913 is shown in table 46. Here the results of sprouting were 



TABLE 46. 



RELATION OF SUN-SPROUTING TO YIELD ON 40 FRANKLIN AND CLINTON COUNTY 

 FARMS IN 1913 



even less marked than in Monroe County. The difference of 1.6 bushels 

 per acre in favor of sun-sprouting, while within experimental error, may 

 easily be due to the increased amount of seed used by growers in this 

 group. The smaller value of fertilizer, however, would partially offset 

 the difference in the amount of seed used. 



Tho sun-sprouting apparently is not justified by the results shown for the 

 last two regions in 1913, it must not be concluded that this is not a profit- 

 able procedure when it is properly done. It is impossible to determine by 

 survey methods the true merits of this phase of potato growing, because 

 of the difficulty of taking into account the actual methods followed. 



