A model for predicting soil loss ratio and crop production in eastern Washington
By: by Ying Yan.
Published: 1989
Language: eng
Number of pages: 86
Subjects: Soil erosion -- Washington (State); Crops and soils -- Washington (State)
Notes: Typescript.

Thesis (M.S.)--Washington State University, 1989.

Bibliography: leaves 56-58.

WSU:"Department of Agronomy and Soils."