Nitrate-nitrogen accumulation in the surface soil during the fallow period under different precipitation levels and tillage systems
By: by Atila Huseyin Senel.
Published: 1981
Language: eng
Number of pages: 89
Subjects: Soils -- Nitrogen content.; Fallowing.
Notes: Typescript (photocopy).

Thesis (M.S.)--Oregon State University, 1981.

Bibliography: leaves 79-82.