A STUDY OF FACTORS INFLUENCING THE YIELD OF POTATOES 1167 



TABLE 9. RELATION OF VALUE OF LAND TO YIELD ON 330 LONG ISLAND FARMS IN 1912 



back to the original owner who is again growing potatoes on it. Some- 

 what less seed and fertilizer are used on these farms, and less spraying is 

 done on them. 



In Steuben County, potato land valued up to $80 an acre gives increased 

 yields with the increase in value (table 10). Tho the amount of seed used 



TABLE 10. 



RELATION OF VALUS OF LAND TO YIELD ON 360 STEUBEN COUNTY FARMS 

 IN 1912 



per acre is about the same thruout, there is a tendency to spend more in 

 manure and fertilizer for the higher-priced land. The real reason for 



