174 FUNDAMENTALS OF AGRICULTURE. 



Yellow Aberdeen and Pioneer; rutabagas, Kangaroo 

 and Holborn Elephant. The fertilizer recommended 

 for mangels is satisfactory for these crops, although 

 the phosphoric acid may be increased to advantage. 



Carrots are valuable to supply appetizing food for 

 horses. They will grow on poorer soils and under 

 more varying climatic conditions than turnips and 

 mangels. They require a soil well prepared. On 

 account of their slow germination they should be fer- 

 tilized to stimulate early growth. Rotted manure is 

 more desirable than fresh manure. The seed is usu- 

 ally planted at the rate of 6 to 8 pounds per acre, in 

 rows 1 8 to 30 inches apart, and thinned from 3 to 6 

 inches. They yield from 10 to 30 tons per acre. 

 The principal varieties are: for human consumption, 

 Vilmorin Coreless Long Red, Intermediate and Lane's 

 Scarlet Intermediate; for stock feed, Long White, 

 Long Orange, Orange Giant and Yellow Belgian. 



Kohlrabi. This is not strictly a root, but the food 

 is stored in a thickened stem. It is grown for stock 

 feeding and does well wherever rutabagas thrive. It 

 should be cultivated similarly to rutabagas. In sec- 

 tions, as in the Middle West, this crop is a good sub- 

 stitute for rutabagas as the latter tend to produce 

 poor roots and large necks. The advantages of kohl- 

 rabi over rutabagas are that it may be grown on a 

 heavier soil; it is easily pastured because its thickened 

 stem grows above ground; it stands drought, warm 

 climate and frost better; it is not so subject to dis- 

 eases; it is not so apt to taint milk. Good seed is hard 

 to obtain and is more expensive than rutabaga seed. 

 Some of the principal varieties are Short Top White, 

 Carter Model and Purple and White Vienna. 



Cabbage is not grown for stock feeding so much 

 in this country as in Europe. It is often advisable for 

 the farmer to grow cabbage, as it generally brings a 

 good market price, and if it does not, it may be fed 

 to live stock. It is not as good as other root crops 

 for feeding because it is more difficult to keep, it re- 



