mangel

Salt has been found in some districts to have a very good effect on the mangel crop, and potash is often found to amply repay application.

From Manures and the principles of manuring by Charles Morton Aikman

It is smaller than the mangel wurzel, and more compact, and appears in its texture to be more like the Swedish turnip.

From The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. by P. L. Simmonds

Three-fourths of the fields were meadow or pasture, or in mangel or turnips. 

From A Walk from London to John O'Groat's by Elihu Burritt

The word is in German mangel wurzel, root of scarcity.

From Notes and Queries, Number 179, April 2, 1853. A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Genealogists, etc by George Bell

Of the different varieties of the mangel the long yellow appears to be the most nutritious, and the long red the least so.

From The Stock-Feeder's Manual the chemistry of food in relation to the breeding and feeding of live stock by Sir Charles Alexander Cameron