SEEDING MACHINERY 



placed 14 to 16 inches or more apart in the Campbell 

 system, and then the grain cultivated during the growing 

 season. It is thought desirable by some to have a slight 

 ridge between the rows in order to hold the snow and to 

 protect the young plant seeded in the fall from being 

 affected so much by heaving. The action of the wind is 

 to wear the ridges down, and in this way tend to cultivate 

 the plants. 



155. Horse lift. The gangs of drills are very heavy 

 and somewhat difficult to handle with levers, the levers 

 being called upon to force the furrow openers into the 

 ground while at work. To assist in this an automatic 

 horse lift is provided on the larger drills. 



156. Footboard. To replace the seat a footboard is 

 often placed on the drill. The operator in this case rides 

 standing and is in a convenient position to dismount. 



157. Grass-seed attachment. The feed shell arranged 

 for drilling the larger field grains does not have the refine- 

 ment to drill grass seed with accuracy. It is often desired 

 to drill the grass seed at the same time as the grain, and 

 good results cannot be had by mixing and drilling to- 

 gether. The grass-seed attachment does not differ much 

 from other devices except in size. Grass-seed attach-, 

 ments are often poorly constructed and become so open 

 as to prevent their use after a few years* service. 



158. Fertilizer attachment. Practically all drill manu- 

 facturers can now furnish their machines with an attach- 

 ment for drilling commercial fertilizer at the time of 

 seeding. The fertilizer is usually fed by means of a plain 

 rotating disk, which carries the fertilizer out from under 

 the box. The seed mechanism will not work with ferti- 

 lizer, as there is a great tendency to corrode on the part 

 of some of the fertilizers. 



159. The five-hoe or disk drill. This tool is used for 



