ROOTS, TUBERS, AND OTHER SUCCULENT FEEDS 135 



ing is also practised by eastern dairy farmers who are feeding their 

 cows for official tests with a view to securing a maximum milk 

 yield. Half-sugar mangels are recommended by the Cornell station 

 as the most desirable root crop to grow for stock feeding. 2 



Rutabaga or Swedish turnip (Brassica campestris, Fig. 23) 

 gives yields similar to mangels and, as a rule, contains somewhat 

 more dry matter. It is considered a good sheep feed and also makes 

 an excellent winter feed for swine, especially for brood sows. 

 Rutabagas are extensively grown by British and Canadian farmers, 

 but less than mangels or sugar beets in this country. 



FIG. 23. Rutabagas (Bloomsdale) , a good type for stock feeding. (Cornell Station.) 



Kohlrabi (Brassica caulorapa) has been developed for its 

 thickened stem instead of for its leaves and root. Although not a 

 root in the botanical sense, it may be discussed under this heading, 

 as it serves the same purpose as roots in stock feeding. According 

 to the Cornell station, 3 kohlrabi can be grown wherever rutabagas 

 are grown, and will thrive under similar conditions. In the middle 

 West, where rutabagas have a tendency to run to necks and form 

 little root, this crop is a good substitute. The yields of the two 

 crops appear to be about the same; as kohlrabi grows well out of 

 the ground, it may be readily pastured by sheep, and these animals 

 also relish greatly the leaves of the plant. 



2 Bulletin 317. 3 Bulletin 244. 



