182 VEGETABLE GROWING PROJECTS 



8. How do the root crops differ in chemical composition? 



9. How are the various root crops served on the table f 



10. Are they essential in ike diet, and how do they compare with the 

 white potato in nutritive value? With the sweet potato? 



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Fig. 43. — -An excellent lot of turnip-shaped radishes. 



2. Selecting location. — The root crops, as previously stated, 

 thrive at comparatively low temperatures so that there is no 

 part of the North where they cannot be successfully grown. By 

 taking advantage of the cooler months they may also be grown 

 with gratifying results in most parts of the South. In the North, 

 the most important factor in seeking a location is the soil. A 

 considerable proportion of sand is always an advantage. Root 

 crops do best, toOj in soils abounding in humus, for such soils are 



