Yields and plant responses of six soybean varieties to nitrogen and zinc fertilization
By: C.E. Nelson, S. Roberts, and G.D. Nelson.
Contributors: Roberts, S. 1930-; Nelson, G. D.
Series: Bulletin / Washington Agricultural Experiment Station -- 642.; Bulletin (Washington Agricultural Experiment Station) -- 642.
Publisher: Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, Washington State University
Published: 1962
Place of publication: [Pullman, Wash.]
Language: eng
Number of pages: 12
Subjects: Soybean -- Yields; Soybean -- Varieties; Nitrogen fertilizers; Zinc fertilizers
Notes: Cover title.

Bibliography: p. 9-10.