SEEDING MACHINERY 133 



It is not adapted to fields that are extremely level, as 

 water will collect in the ditches after rains and drown the 

 corn while small. Neither can it be used in hilly locali- 

 ties, as the corn will in this case be washed out. 



The lister is simply a double plow throwing a furrow 

 both ways. The seedbed is prepared at the bottom of the 

 furrow with a subsoiler. The planting may be done later 

 or with an attached drill, which plants as the furrow is 

 opened up. Thus plowing and planting are done at one 

 operation. Fig. 99 shows one of the latest styles of walk- 



FIG. 99 A SINGLE-ROW WALKING LISTER WITH A CORN DRILL ATTACHED. 

 DISKS ARE USED IN PLACE OF THE COVERING SHOVEL 



ing listers with sprocket-wheel-drilling attachment. 

 The drill attachment may be used independently as a 

 drill. Fig. 100 is a representative three-wheel riding 

 lister. Riding listers are also made without the furrow 

 wheel, and when so made are termed sulky listers. Even 

 the lister as a single-row machine has not been rapid 

 enough for the Western farmer, and several makes of a 

 two-row lister are to be found upon the market. 



183. Loose-ground listers. Listing of corn has some 

 disadvantages. When listing is practiced, the soil is not 

 all loosened, and when successive crops are grown in the 

 same way an effect upon the yield is noticed. To gain the 



