Effects of nitrogen fertility level and time-of-training on Bullion and Cluster type hops
By: [C.E. Nelson, R.E. Early, and M.A. Mortensen].
Contributors: Early, R. E.; Mortensen, M. A.
Series: Bulletin / Washington Agricultural Experiment Station -- 725.; Bulletin (Washington Agricultural Experiment Station) -- 725.
Publisher: Washington Agricultural Experiment Station, College of Agriculture, Washington State University
Published: 1970
Place of publication: [Pullman, Wash.]
Language: eng
Subjects: Hops -- Fertilizers; Nitrogen fertilizers; Plants -- Training
Notes: Cover title.

Bibliography: p. [6].