A comparison of annual cropping, biennial cropping, and green manures on the yield of wheat
By: by B.A. Madson
Series: Bulletin -- no. 270; Bulletin (California Agricultural Experiment Station) -- 270.
Publisher: Agricultural Experiment Station
Published: 1916
Place of publication: Berkeley, Cal
Language: eng
Number of pages: 14
Subjects: Cropping systems; Wheat; Green manuring
Notes: Cover title.