STATE POMOLOGICAL SOCIETY. 65 



on cultural methods in the Fassett orchard, with proper fer- 

 tilization and with crops ranging from 200 to 600 bushels per 

 acre, we have had relatively steady yields on Baldwins and 

 Spies, similar to those in plat 8, which have been maintained 

 for a period of five years without any important decrease 

 appearing. 



The unusual size of the 1912 crops on plats 2 and 3 in the 

 Brown experiment deserves special attention. While their 

 adjacent checks, i and 4, were showing an average yield of 73.2 

 bushels per acre, plats 2 and 3 were producing the tremen- 

 dous average of 1,217.5 bushels per acre, and 1,006 bushels ot 

 this were picked fruit. The terminal twig growth of the 

 checks, in the meantime, averaged scarcely half an inch for 

 the season, while that of the fertilized plats, in spite of their 

 enormous crops, averaged from 6 to 8 inches, with frequent 

 terminals running up to 2 feet. All these differences were 

 brought about solely as a result of dififerences in fertilization. 

 The spraying, pruning, soil management, variety and age of 

 trees, and all other visible features were just the same on the 

 checks as on the fertilized plats. 



Results in the Tyson Orchard. 



In the two preceding experiments, we have seen large annual 

 gains resulting from certain fertilization, particularly that rich 

 in nitrogen and phosphorus, regardless of whether these ele- 

 ments were carried in manure or in commercial forms. In 

 these cases also, the gains from potash were relatively small 

 or entirely absent. Thus far in the Tyson experiment, so far 

 as the yields are concerned, we have practically the reverse 

 conditions. 



The trees in the latter experiment are much younger, being 

 now but 15 years of age. The varieties are York Imperial 

 and Stayman Winesap, the latter having been top-worked on 

 certain York rows about 6 years after planting. The soil is a 

 relatively heavy silt loam, and tillage and annual cover-crops 

 have been maintained near the trees practically uniformly 

 since the orchard was started. The annual growth and gen- 

 eral appearance of all the trees in this experiment are much 

 better than those of the average check trees in the preceding 

 5 



