MISCELLANEOUS HERBS USED AS FORAGE 575 



duction. In America their culture has not been large, 

 partly from the fact that there are several insects that live 

 naturally in the seeds. 



The plants are cultivated much after the manner of 

 corn in rows 28 to 36 inches wide, with the plants a foot 

 apart in the rows. 



Sometimes sunflowers are grown thickly and cut for 

 fodder, but the woody nature of the plants makes them 

 undesirable for this purpose. 



At the New Hampshire Experiment Station three varie- 

 ties gave the following yields of heads to the acre : Rus- 

 sian, 23,958 pounds ; White Russian, 19,360 pounds ; 

 and Grey, 20,812 pounds. 



In Ontario they have been grown to some extent as a 

 forage crop, the heads being put into silos with corn. 

 There seems, however, to be no economy in this practice. 

 At the Ontario Agricultural College three varieties have 

 been grown continuously for a period of years, the result- 

 ing yield data being as follows : 



According to the last census, the total area of cultivated 

 sunflowers in the United States was 4731 acres, which 

 yielded 63,677 bushels of seed. Illinois, with 3979 acres, 

 produced most of the crop; namely, 49,064 bushels. 



