Fresh Manure not Good for Potatoes 



131 



The soil best adapted to this crop is a rich, sandy 

 loam underlaid by a subsoil retentive of moisture. The 

 soil should be deeply stirred and thoroughly pulverized, 

 and well -rotted manure applied broadcast and incorpo- 

 rated with the soil. Fresh unfermented manure is not 

 desirable and should not be used, since it encourages 

 fungous diseases of the vine and scab on the tubers. 



Sprayed Potatoes Fig. 15. Potatoes not sprayed 



Photographed September 6. Gain due to spraying, 833>^ bushels per acre. 

 Bulletin 264, New York Experiment Station. 



Open deep furrows three feet apart with large shovel- 

 plow or with a one-horse turning plow, and run twice in 

 the row. Into these furrows, strew a complete commercial 

 fertilizer at the rate of 800 pounds per acre, and mix it 

 with the soil and subsoil by two furrows of a long, narrow 

 bull -tongue plow. Cut medium -sized tubers to one or 

 two eyes or buds, making the pieces as large as practi- 



