1390 Tur VEGETABLE INpUstry In New York StTatTE 
3. Strong, healthy seed, in well-tilled soil, with an abundance 
of available plant food of the proper kind, promotes a vigor of 
both top and tubers, which will resist disease much better than a 
weak plant. 
+. To insure the greatest development of starch the leaf sur- 
face must be preserved until the potato has completed its life cycle. 
Surely, then, a line of procedure most in harmony with the laws 
of nature governing the potato plant will be most likely to insure 
a crop. 
