Power requirements, cloddiness, residue conservation characteristics of some stubble-mulch tillage implements / [J.D. Dickerson, N.P. Woodruff, and C.R. Fenster]; in cooperation with Southern Plains Branch, Soil and Water Conservation Research Division, Agricultural Research Service, U.S. Department of Agriculture.
Imprint
Manhattan : Agricultural Experiment Station, Kansas State University of Agriculture and Applied Science, 1967.