SOIL DRAINAGE 



51 



QUESTIONS 



1. In which pot did the plants make the best growth ? 



2. How do you account for the difference in growth ? 



3. Was there any difference in the color of the plants in the two 

 pots ? How do you account for this difference ? 



4. What was the difference in temperature of the soil in the two 

 pots ? How do you account for this difference ? 



5. Would this difference in temperature have any effect on the 

 growth of the plants ? 



6. In which pot did the roots go the deeper ? Why ? 



7. Can a farmer expect the best growth of corn on a field poorly 

 drained ? 



8. How can the farmer improve the drainage of a poorly drained 

 field? 



STUDENT'S NOTES AND REPORT 



TABLE FOR RECORDING TEMPERATURE OF SOIL AND GROWTH OF 

 PLANTS IN POOR AND WELL DRAINED SOIL 



