150 



HATCH EXPERIMENT STATION. 



[Jan. 



The soil is a medium loam underlaid by gravel, and with 

 perfect natural drainage, — a good potato soil. It received 

 this year an application of manure from milch cows at the 

 rate of 4 cords per acre. A fertilizer mixture was made, 



This mixture Avas used in the drill, being scattered Avidely 

 the full length of the open furrow at the rate of 1,600 

 pounds per acre. The crop was thoroughly cared for, and 

 sprayed three times with a combined insecticide and fungi- 

 cide. This application did not prove altogether eftective, 

 although there was no rot. Growth was normal, and no 

 signs of blight appeared until early in August. The varie- 

 ties on which it showed itself previous to August 10 were : 

 All the Year Round, Daughter of Early Rose, Early Carmen, 

 Early Trumbull, Early Eureka, Early Rose, Early Pioneer, 

 Ensign Bagley, Ford 1902, Harvest King, Honoeye Rose 

 Seedling, Northern Beauty, New England Thoroughbred, 

 Sunlight, and Smith's Six Weeks. Those on which it 

 showed itself later than August 20, and which therefore may 

 fairly be considered unusually disease-resistant, were : Liv- 

 ingston, Million Dollar, Mark Hanna, and Smith's '99. 



The table shows the dates at which the vines of the several 

 varieties were completely dead, and the i-ates of yield per 

 acre for each : — 



