The influence of relative area in intertilled and other classes of crops on crop yield
By: by D.A. Brodie
Series: Circular / United States, Dept. of Agriculture, Office of the    Secretary -- no. 57; Circular (United States. Dept. of Agriculture. Office of the Secretary) -- no. 57.
Publisher: U.S. Dept. of Agriculture, Office of the Secretary
Published: 1916
Place of publication: Washington, D.C
Language: eng
Subjects: Intercropping; Crop yields
Notes: Cover title.

March 31, 1916.