Introduction to the Principles of Soil Fertility 1773 



4. Are all the soils in your region being utilized in the way that will give 

 the best permanent returns? What is the percentage of waste lands? 

 What suggestions can you offer? 



5. Name the practices that are followed in your region to maintain the 

 productiveness of the soil. Are they applied in the proper order? 



6. What crop rotation or rotations are followed in your region, and under 

 what conditions? 



7 . To what extent is attention given to growing on each soil the crop to 

 which it is best adapted, through either selection of seed or systematic 

 plant -breeding? 



