606 



STATE BOARD OF AGRICULTURE. 



Couinioicial Icitilizers may be used to supply the niiueral eleiuents to 

 the soil. They should contain relatively high percentages of phosphoric 

 acid and potash with nitrogen in a slowly available form. Large amounts 

 of quickly available nitrogen either in the form of commercial fertilizer or 

 stable manure often induces an excessive cane nnd leaf growth and lessens 

 fruit production. 



Wlien no stable manure is applied and cover crops used lo supply 

 humus, an annual application in the spring of eipial parts of ground 

 bone, acid phosphate, and muriate of potash, applied at the rate of 500 

 pounds per acre, is recommended. If desired to supplement light applica- 

 tions of stable manure, an application consisting of 200 pounds of bone 

 meal or acid phosphate and 100 pounds of muriate of potash may be used. 



PRUNING AND TRAINING 



The fruit of the raspberry is borne on lateral or side shoots from canes 

 of one season's growth. The canes usually bear but once, that is, the canes 

 are produced one year, bear fruit the next, then die. The objects of prun- 

 ing, therefore, should be to remove all old canes which are of no use in the 

 plantation, and to provide a proper number of new canes for the produc- 



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Fig. 6. — A well grown black raspberry plant. Only 3 to 5 of the best canes are left for fruiting. 



