ROOT CROPS 



295 



pasture during September and October. It is not advisable to 

 store cabbage for feeding purposes. Rutabagas may be grown 

 and stored for feeding during November and December, while 

 mangel-wurzels may be grown for later feeding. Rutabagas 

 are desirable to feed throughout the winter to brood sows and 

 other pigs. Carrots are especially desirable for horses. Lazenby 

 reports that, when fed to 

 horses, one bushel of oats and 

 one bushel of carrots together 

 were equal in feeding value to 

 two bushels of oats. 



It is claimed that as com- 

 pared with rutabagas, kohlrabi 

 withstands drought better, can 

 be grown on heavier soils, and 

 in a climate too warm for the 

 best development of rutaba- 

 gas; it withstands frost better 

 and is not so subject to club 

 root. Little is known of its 

 feeding value. The seed, on 

 account of the small demand, 

 is high priced and apt to be of 

 poor germinating power. 



373. Production. The cul- 

 tivation of turnips as food for 



stock was introduced into England from the continent about 

 1650 and caused great changes and improvements in British 

 agriculture, including live stock husbandry. They have never 

 been extensively grown in the United States. In Canada turnips 

 are still the leading root crop grown for stock feeding. 



III. RAPE 



374. Description and Varieties. Rape (Brassica napus L.) 

 has much the same habit of growth as kale or headless cabbage, 



Thorburn's large white Vienna kohlrabi 



