An economic evaluation of on-farm strategies for reduction of nitrate groundwater pollution
Subtitle: the case of irrigated production in the Columbia basin
By: by Scott Lee Johnson.
Published: 1989
Language: eng
Number of pages: 335
Subjects: Agricultural pollution -- Oregon.; Agriculture -- Economic aspects -- Oregon.; Nitrates -- Environmental aspects.
Notes: Typescript (photocopy).

Thesis (Ph. D.)--Oregon State University, 1990.

Includes bibliography (leaves 211-222).