112 CORN 



nourish the corn plant. It forms large, black masses of 

 spores that can be seen on the stalk, leaves, or ear. Some- 

 times the whole ear is a black mass of spores. The spores 

 live over winter in the soil or in manure. Corn smut can 

 not be cured. It can be prevented by picking the smut 

 masses and burning them. 



QUESTIONS AND EXERCISES. 



1. What states constitute the corn belt of the United 

 States? 



2. What are the four important types of corn? 



3. Which type of corn can best be grown in a northern 

 region? Why? 



4. How does freezing injure seed corn before it is dry? 



5. Tell how to test 100 ears of seed corn for germination. 



6. When should corn be planted? 



7. What advantage is there in planting torn irf rows both 

 ways? 



8. Why should corn be cultivated? 



9. What is the difference between fodder corn and corn 

 stover? 



10. Give some reasons why a farmer should have a silo, 

 n. Name five manufactured products from corn. 



12. What is corn smut and how can it be prevented? 



13. Study the map on page 102. Account for the low 

 yield of corn in the western part of the United States. 



14. Study the table on the following page and show the 

 yield of corn by states by placing on an outline map of the 

 United States a heavy black dot for each 10,000,000 bushels. 



For example, the yield of Illinois will be represented by 

 37 dots, that of Iowa by 30 dots. 



