Gra^e With Sheep. 93 



having a clean farm is a vain one if noxious 

 weeds are allowed to ripen upon it even in 

 quantities ever so limited. If any weeds 

 are allowed to ripen their seeds, the farm 

 will never be wholly clean, notwithstanding 

 the fact that the number of weeds may be 

 very considerably reduced. 



16. Graze off several crops in succession 

 with sheep. There is probably no more 

 effective method of fighting weeds, espe- 

 cially annuals, than by growing two or three 

 crops in succession the same season and 

 grazing them down with sheep. To do this 

 effectively it is necessary to have two or 

 three fields or enclosures, in which there 

 can be alternation in production and in graz- 

 ing. The following are among the advan- 

 tages of this method of attacking weeds : 

 Germination is encouraged in the seeds, 

 especially in the seeds of annuals that may 

 be lying in the soil ; the weeds thus germi- 

 nated are eaten by the sheep along with the 

 other grazing; a very large quantity of 

 grazing relatively may thus be produced 

 from a small area of land ; the land is thus 

 put in excellent condition for growing the 

 grain crops that will follow such grazing. 

 Among the crops best adapted to provide 



