Effects of nitrogen and phosphorus on flower bud formation in rhododendrons
By: G.F. Ryan.
Contributors: Washington State University. College of Agriculture. Research Center.
Series: Bulletin / Washington State University, College of Agriculture Research Center -- 872; Bulletin (Washington State University. College of Agriculture. Research Center) -- 872.
Publisher: Washington State University, College of Agriculture Research Center
Published: 1979
Place of publication: [Pullman, Wash.]
Language: eng
Subjects: Rhododendrons -- Fertilizers; Nitrogen fertilizers; Phosphatic fertilizers
Notes: Cover title.

"February 1979."

Includes bibliographical references (p. 5).