30 N. H. AGR. EXPERIMENT STATION. [Bulletin 190' 



the orchardists of the state apply fertilizers at about the following 

 rate per acre as a trial before they make general use of them : 



150 pounds nitrate of soda, 

 200-300 pounds acid phosphate, 

 50-100 pounds sulphate or muriate of potash. 



If the average observer can see no difference after two or three 

 applications between the fertilized and unfertilized portions of his 

 cultivated orchard it would seem reasonable to wait until the 

 orchard showed some signs of decrease in production or growth 

 before investing heavily in fertilizers. A mature apple tree in 

 this cUmate should make from seven to nine inches of terminal 

 growth on the average and such an orchard bear on the average 

 at least 75 to 100 barrels per acre (in good seasons of course much 

 more) and the trees should have a healthy green appearance and 

 hold their leaves well into the fall. When these conditions are 

 not maintained then the orchardist should apply additional 

 fertility to the trees. 



