Research progress and needs conservation tillage
Subtitle: Council Bluffs, Iowa, January 6-7, 1976.
Series: ARS-NC -- 57
Publisher: Dept. of Agriculture, Agricultural Research Service, North Central Region
Place of publication: [Peoria, Ill.]
Number of pages: 89
Subjects: Conservation tillage -- United States.
Notes: Issued Oct. 1977.

Includes bibliographies.