EXERCISE 29 (Continued) (77) 



QUESTIONS 



1. What is absorption? 



2. How is the manure extract affoctetl in passing through tiio soil? 



3. How does lime affect the process? 



4. What is leaching? 



5. What kind of soil would lose most l)y leaching? 



6. Would you follow the same method for applying nitrate of soda on a sandy 



soil as on a clay soil? Why? 



7. Which of the above two soils would l)e i)est plowed in the Fall? Why? 



8. What does this experiment teach us? 



