Growth and N₂ fixation in soybean and nitrification as affected by nitrogen source and a nitrification inhibitor
By: by Muhammad Ashraf Zahid.
Published: 1990
Language: eng
Number of pages: 93
Subjects: Nitrogen -- Fixation.; Nitrification inhibitors.; Soybean -- Growth.
Notes: Typescript.

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

Includes bibliographical references (leaves 58-62).

WSU:Another copy on microfilm, no. 6934.

WSU:"Department of Agronomy and Soils."