NH₄⁺ versus NO₃⁻ fertilization of field corn and related studies
By: [by C.E. Nelson, M.A. Mortensen, and R.E. Early].
Contributors: Mortensen, M. A.; Early, R. E.
Series: Bulletin / Washington Agricultural Experiment Station -- 685.; Bulletin (Washington Agricultural Experiment Station) -- 685.
Publisher: Washington Agricultural Experiment Station, College of Agriculture, Washington State University
Published: 1967
Place of publication: [Pullman, Wash.]
Language: eng
Number of pages: 10
Subjects: Corn -- Fertilizers; Corn -- Field experiments
Notes: Cover title.

Bibliography: p. 10.