Some of them feed what is called tankage.
"Dust" by Mr. and Mrs. Haldeman-Julius
Digester tankage 12 lbs.
"Pratt's Practical Pointers on the Care of Livestock and Poultry" by Pratt Food Co.
The settlings are dried and ground and sold as tankage.
"The First Book of Farming" by Charles L. Goodrich
Tankage for young pigs and meat scraps for chickens are high-grade proteins and are of animal origin.
"Agriculture for Beginners" by Charles William Burkett
Other materials were, in order, lime, compost, bone meal, ammonium sulphate, wood ash, tankage.
"Northern Nut Growers Association Thirty-Fourth Annual Report 1943" by Various
After planting one shovelful of night soil, or two or three shovelfuls of cured slaughter house tankage, were applied to each tree.
"Northern Nut Growers Association Report of the Proceedings at the Thirty-Eighth Annual Meeting" by Northern Nut Growers Association
Tankage may be used in part, and in it the nitrogen costs very little more per pound.
"Crops and Methods for Soil Improvement" by Alva Agee
Her tankage and guidance were reproduced.
"If at First You Don't..." by John Brudy