Grade. 

 Date. . 



EXERCISE 33 (85) 



Examination and Discussion of Tillage ^Machinery 



( Side hill or reversible 

 I Landside (walking) 



Plows \ Sulky (one way) 



I Sulkv (two way) 

 [ Di.sk 



(■ Full disk Spring tooth 



Harrows I Cutaway Spike tooth 



[ Spading Acme 



Meeker 



f Riding 

 r».,if- „f^-. J Coulter (common) 



<^"^^'^'^*«'^^ 1 Spiketooth 



[ Spring tooth 



a^;i Tr;..,„r.^= / Solid Roller Packer and muloher 



Sod I irmers | Corrugated roller Planker 



QUESTIONS 



1. Make a drawing of a section of each one of these harrows. 



2. When should fall plowed land be harrowed? 



3. When should spring plowed land be harrowed? 



4. If a man could have but one harrow what one should he choose? 



5. Under what conditions would each cne of the disk harrows give the most 



satisfactory results? 



6. If a soil on a certain farm is somewhat uniformly a medium loam what 



two harrows would be the most economical to purchase? 



7. Describe the work of the Acme harrow. 



8. What type of work leaves the soil the lightest and loosest and which one 



compacts it the most? 



9. Which harrow works the soil the deepest? 



10. Which harrow is adapted to the interculture of crops? 



11. Why should harrows be as wide as possible? 



12. What are the advantages of the corrugated roller? 



13. Wliat are the advantages of rolling and when should it ])e done? 



14. What type of cultivator is the most popular and why? 



15. ]\Iake a drawing of the different types of coulters and jointers used on 



plows. State clearly the use and value of each. 

 10. What are the advantages of the planker? 



