264 SYSTEMS OF INTENSIVE CROPPING 



5. Describe the system of double cropping knowTi as "succession cropping." 



6. What principles must be observed in selecting a series of crops for suc- 



cession cropping ? 



7. Give examples of suitable crops for succession cropping. 



8. How may companion and succession cropping be combined into one sys- 



tem? Give examples of suitable combinations. 



9. Discuss the relative merits of the different systems of double cropping. 



10. On what general factors does the success of double cropping depend? 



11. Give examples of intensive cropping used in your section. 



