PLANTS OP THE CLOVER FAMILV. 79 



that place will be found, in many instances at least, 

 on soils where medium red clover will grow but not 

 with marked vigor. The mammoth being a stronger 

 plant, it has more power to gather plant food in 

 the soil. 



Distribution. — The distribution of mammoth 

 clover is much the same as the distribution of the 

 medium red variety. (See Page 68.) Where the 

 one will grow so will the other, at least measurably 

 well. So far as the two varieties have been tried 

 this result has been noticed. The mammoth clover, 

 however, has not yet been grown over so wide an 

 area as the medium red, hence it is possible that 

 there may be localities where one of these varieties 

 only will flourish, but if so these have not hitherto 

 been defined. 



Place in the Rotation. — Mammoth clover 

 should be given the same place in the rotation as the 

 medium red clover. (See Page 69.) It should be 

 sown for pasture, therefore, in short rotations, and 

 should follow, when practicable, a cultivated crop, 

 to be succeeded by a grain crop. 



Soil. — The soils suited to mammoth clover are 

 substantially the same as those suited to the medium 

 red variety. (See Page 69.) Since mammoth 

 clover, however, would seem to have greater power 

 to gather plant food in the soil than the medium red, 

 it is relatively better adapted to lands not well sup- 

 plied with fertility. And as it sends its roots deeper 

 into the soil, it is bettet able to withstand drouth 

 in dry seasons, and also the influences that cause 

 heaving or lifting in dry soils supplied with too 

 much moisture in the season of freezing and thaw- 

 ing. Mammoth clover, therefore, has, in some 



