8 PRODUCTION OF HAIRY VETCH SEED. 



EXPERIMENTS IN GROWING HAIRY VETCH SEED IN AMERICA.^ 



While hairy vetch for hay or green manure has long been grown] 

 successfully in nearly all parts of the United States and Canada, 

 there has been relatively little investigation made of its seed produc-l 

 tion. Table II is a compilation of published American data in 

 seed production, together with unpublished results obtained by the 

 Department and its cooperators. 



These results show yields ranging from 3 to 15 bushels per acre, 

 with an average of 6^ bushels for all the trials. Such a yield makes 

 a decidedly profitable crop. Where vetch is grown alone the seedi 

 yields are heavier, but this is largely counterbalanced by the diffi- 

 culty of harvesting, so that it is advisable as a rule to grow it in 

 combination with rye. 



Approved: 



JAMES WILSON, 

 Secretary of Agriculture. 



WASHINGTON, D. C., August 7, 1912. 



[Cir. 102.] 



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