i8 



MAINE AGRICULTURAI. EXPl^RIMENT STATION. I903. 



trees under discussion were almost the only ones in the whole 

 orchard — some 900 trees in all — which gave even a moderate 

 yield. (The rest of the orchard is in sod as it has been for 

 many years.) The following tabular statement of the actual 

 yields is of interest as a matter for record and future reference. 



DETAILED STATEMENT OF YIELD, 1902. 



* When the orchard was originally top-worked, a few odd varieties were inclu de d 



The total yield on the area under observation, nine-tenths of 

 an acre, was 85 barrels, of which 62 barrels were commercially 

 graded as ''No. i" and 20 barrels as "No. 2." The average yield 

 per tree was a little less than 2^ barrels, and was remarkably 

 uniform as between different plots. There was a noticeable 

 increase in yield per tree and in the proportion of first-class fruit 

 from the kainite plot to the muriate plot. This may be partly 

 due to a slight difference in the character of the soil ; the kainite 

 plot being at the highest and the muriate at the lowest part of 

 the slope, which, however, is very slight. The orchard was 

 purposely left without spraying of any kind. 



EFFECT OE POTASH ON APPLE SCAB. 



One of the questions in mind at the beginning of this work 

 was the supposed influence of an excess of potash in the soil as 



