FEEDIKG THE HOP PLANT. 75 



Perhaps the most striking need 0f the plant is for* 

 nitrogen. We have no data to show to what extent, 

 if any, the hop plant is able to take its nitrogen from 

 the atmosphere, as do certain leguminous crops. But 



FIG. 29. IRRIGATING HOPS, MAKING A LITTLE WATER MOISTEN 

 MANY ROWS OF PLANTS. 



we do know that it is a gross consumer of nitrogen and 

 that this element must be in a promptly available form 

 to promote the vine's luxuriant growth. Hence, the 



