LABORATORY MANUAL IN FIELD CROPS 49 



PRACTICUM NO. 38 

 Object. A Study of Root Crops. 

 Materials. Reference work. 



Method. Write up the answers and descriptions in your 

 notebook. 



1. What plants are included under root crops? What are 

 their principal uses? Name five principal states noted for 

 root crop production. 



2. Name the four types of beets, and tell for what each one 

 is used. 



3. Describe the culture of the beet as to the following : soil, 

 amount of seed, method of seeding, cultivation, harvesting. 



4. Describe the culture of carrots in the same way as for 

 beets. 



5. Give a botanical description of the rape plant and com- 

 pare with the kale plant. Explain the uses of each of these. 

 In what part of the United States are they mostly grown ? 



6. Explain the difference between a root and a tuber. 



7. Give the principal botanical characters of the potato 

 and the history of its cultivation. 



8. What plants are closely related to the potato ? 



9. What country is the largest producer of the potato ? 



REFERENCES 



Bureau of Plant Industry Bulletin No. 164. 

 Bailey's Cyclopedia of Agriculture, pp. 539-550. 

 Livingston's Field Crop Production, pp. 359-363. 



