450 FIELD CROPS 



yield and value of an acre of potatoes planted in the usual manner if 

 all hills were like the best? If all were like the poorest? 



5. Go into a field of growing potatoes, put up stakes beside hills 

 on which the foliage has been destroyed by bugs or blight, and by hills 

 with foliage uninjured. At digging time note yields from the marked 

 hills. The results will emphasize the importance of spraying. 



6. Obtain three potatoes of about the same size of each variety 

 commonly grown in your community. Put them all in a uniformly 

 heated oven and bake until one variety is well done. Remove all 

 potatoes and examine as to baking and quality. Is there any reason 

 why buyers prefer a car of potatoes of one variety to a car of mixed 

 varieties? 



SUPPLEMENTARY READING 



Farmers' Bulletins: 



35, Potato Culture. 



91, Potato Diseases and Their Treatment. 



295, Potatoes and other Root Crops as Food. 



342, pp. 10-14, Potato Breeding. 



386, Potato Culture on Irrigated Farms of the West. 



407, The Potato as a Truck Crop. 



410, Potato Culls as a Source of Industrial Alcohol. 



324, Sweet Potatoes. 



Bailey's Cyclopedia of American Agriculture, Vol. II. 

 Burkett's Farm Crops. 

 Fitz' Sweet Potato Culture. 

 Fraser's The Potato. 



Terry and Root's A B C of Potato Culture. 

 Van Ornam's Potatoes for Profit. 



