374 GRASSES AND HOW TO GROW THEM. 



been cultivated, to the exclusion of all or nearly all 

 other grasses and clovers, though they should not be 

 sown again. This follows on the condition that young 

 trees are not allowed to crowd them or overshadow them 

 by their shade; such a result will not follow, where 

 live stock graze through the season. These two grasses 

 would then take possession of the soil in two or three 

 years to the exclusion of the growth of trees ; they will 

 likewise take possession of land from which timber has 

 been removed, when thus given a chance to grow. But 

 the transformation in both instances will be more rapid, 

 if seed is scattered in the early autumn or early spring, 

 even though it should not be harrowed. For this pur- 

 pose, it should seldom be necessary to sow more than 

 7 pounds of Kentucky blue gTass and 3 pounds of 

 white clover per acre. The pastures, on broken and 

 rugged land in the states and provinces of this group, 

 will usually be composed of these two grasses. For 

 average soils in this group, if a limited number of grass- 

 es is chosen with a view to provide mixed pastures for 

 a more or less definite term of years, the following 

 ^vould probably serve the purpose best: 



Lbs. Per Acre. 



Timothy 4 



Orchard 4 



Redtop 3 



Russian brome 4 



Medium red 3 



Mammoth 2 



Total 20 



If Russian brome is omitted, as its behavior in mixed 

 pastures under American cultivation is not }-et well un- 



