Tilth and Tillage of the Soil 1781 



5. Is there any " hardpan " in the soil? If so, describe it. In what 

 ways may it be broken up and made favorable for the development of 

 plant roots? 



6. Explain the benefits of deep plowing. 



7. How deep is the soil plowed in your region? Does this vary with 

 the soil, the crop, or the season? What do you consider the best depth 

 to plow your soil, and why? 



8. When is most plowing done in your region, in fall or in spring? 

 Which do you consider best for your soil!' Why? What, if any, are the 

 advantages of fall plowing? 



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