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.” 
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. 
. Fra. 23.—Rutabagas einer a — type for stock feeding. (Cornell Station.) 
Kohlrabi (Brassica adtisoape 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,? 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. 
2Bulletin 317. * Bulletin 244. 
