A STUDY OF FACTORS INFLUENCING THE YIELD OF POTATOES 1229 



TABLE 61. 



RELATION OF RATE OF PLANTING TO YIELD ON 300 MONROE COUNTY FARMS 

 IN 1913 



even the growers who planted the most seed did not exceed the optimum 

 rate. A coefficient of correlation of 0.247 0.037 between rate of plant- 

 ing and yield for this region in 1913 is shown in figure 142. 



FIG. 142. 



8 



8 



Yield per acre, in bushels 

 c\i LQ i^* ^5 c^j 



iO 



<M 



O 



CO 



1 

 6 

 20 

 11 

 47 

 17 

 77 

 33 

 31 

 37 

 10 

 2 

 4 

 1 

 1 

 

 1 

 1 



1 7 38 70 50 61 34 24 8 4 1 1 1 300 

 r = 0.247 0.037 



CORRELATION OF RATE OF PLANTING AND YIELD ON 300 MONROE COUNTY FARMS 



IN 1913 



