38 Weeds, 



dom of locomotion on the part of the work- 

 men, impede the working of the implements 

 used, and increase the difficulty of hand- 

 ling the crop. Moreover, weeds materially 

 increase the difficulty of curing both cereal 

 and grass crops by prolonging the curing 

 period, and in proportion as this period is 

 prolonged, the liability to loss from adverse 

 weather is increased. 



When weeds become so numerous as to 

 disturb the regular rotation, they necessa- 

 rily interfere with the profits that would 

 otherwise accrue. A disturbed rotation 

 generally leads to the growing of some crop 

 that is less desirable than that usually 

 grown. This, in turn, may lead to dis- 

 turbed market relations, a greater necessity 

 for the purchase of artificial fertilizers, and 

 even of certain farm foods that may be 

 wanted, and to various other evils, some of 

 which have been mentioned in Chapter II. 



The labor required in cleaning the ground 

 from weeds increases with the increase of 

 the weeds, and the farm profits are there- 

 fore to that extent reduced. More partic- 

 ularly is this the case in growing cultivated 

 crops. With the multiplication of weeds 

 hand labor especially is increased, because 



