416 REVIEW QUESTIONS 



X. Give the life histories and methods of controlling the insect 

 enemies of potatoes. The fungous diseases. 



CHAPTER XXI 



I. What importance does the farmer usually attach to the 

 meadows and pastures in comparison with other field crops? 

 What has been the result ? 



II. Discuss their fertilization with manure and chemical 

 fertilizers. Results of continuous cropping without fertiliza- 

 tion. 



III. What are the advantages of grass and legume mixtures 

 for (a) hay, (6) pasture? What factors must be considered 

 in forming the mixtures ? 



IV. How may grass and legume seed be tested for germina- 

 tion ? For purity ? Are these tests important ? 



V. Discuss the care of grass lands for best results. How would 

 you go about improving a run-down meadow or pasture ? 



VI. Can you plan a scheme by which temporary pasture 

 may be available throughout the growing season ? 



VII. What is the value of substitute hay crops ? 



CHAPTER XXII 



I. What has made possible the great specialization in crop 

 production that is found to-day ? Why was this impossible in 

 the early days of agricultural development ? 



II. What are the three types of country elevators? What 

 is their function, and how are they of service to the farmer ? Dis- 

 cuss the methods of management of each type. 



III. What is a terminal market? A terminal elevator? 

 What function does the latter perform ? 



IV. Why is grain graded on the market ? How is it done ? 

 What are the methods of sale at the terminal market? The 

 kinds of contracts? Systems of credit? Upon what does the 

 price of grain depend ? 



V. How does our surplus grain reach the foreign markets ? 



