90 HARVESTING AND MARKETING 



of tubers by furnishing an element of fertility which is lack- 

 ing in the soil. Some conditions that affect the table quality 

 of the potato are, size, and shape, fertility of soil, cultiva- 

 tion, climate and season, maturity, and in general the quali- 

 ty is increased with the thickness of the cortical layer, and 

 decreases as the number of eyes increase. 



In conclusion of this chapter, I would impress some 

 points upon the reader's mind : 



1st. Use good grading system, thereby building up 

 a good market for your particular grade. 



2nd. Never leave culls in the field to become a volun- 

 teer crop the following season. This will finally cause the 

 "running out" of the potato, and where disease is evident 

 and the crop is harvested in this careless manner, the fol- 

 lowing year will increase the amount of disease. 



3rd. Handle the tubers as little as possible, and care- 

 fully. 



