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

Includes bibliographies.