FEEDING THE HOP PLANT. 



71 



A GOOD CROP OF HOPS WILL TAKE FROM AN ACRE OF LAND 



These are astonishing" fi^^ures. Their significance 

 can be best judged by comparison with the plant food 

 removed from an acre by other crops under equally 

 good culture, it being assumed that the hop vines, like 

 potato vines and cornstalks, are returned to the soil: 



PLANT FOOD REMOVED FUOai AN ACUK IIY SEVEUAL CROPS 



How few hop planters in New York state realize 

 that for a good crop of hops they must manure as heav- 

 ily as for 40 bushels of corn per acre, simply to supply 

 what is taken from the soil l)y the dry hops. If we 

 consider both vines and hops, we get this table, 

 showing: 



COMPOSITION AND QUANTITY OF MANl^RIAL SUP.STANCES REQUIRED 

 TO SUPPLY WHAT AN ACRE OF HOPS TAKES FROM THE SOIL 



aThis weifjht of wood ash ((•ontaininfr only 12% water) will supply 

 the full amount of i»otash taken oH" by the hop crop (vines and hops) 

 but no nitrocren ; the other weights triven will furnish the full .amount 

 of nitrotien. but more or les.s of i>otash and phosphoric acid than the 

 crops take off, except in the case of bone meal. 



Stable manure is the form of plant food preferred 

 by both European and American hop growers. In 



