IN THB DIFIfSRENT STATES l6l 



Spring, followed by a frost, the plants seem to be 

 injured more than those of red clover or alsike clover. 

 The greatest source of trouble with alfalfa seems to be 

 from crowding by weeds, especially the first year, if 

 sown by itself. Even after it is well established the 

 crop is sometimes pretty badly crowded out by the 

 Candanian blue-grass {Poa compressa) . 



' ' There is risk when pasturing the crop alone. I 

 have known within fifteen months three instances in 

 which cattle have died while pasturing on alfalfa, and 

 in nearly all cases the animals have been pastured in 

 the same field for some time. When alfalfa is sown 

 with grasses for a permanent pasture there does not 

 seem to be the same danger from pasturing on it." 



