The effect of intensity and frequency of clipping on density and yield of black grama and tobosa grass
By: by R. H. Canfield.
Contributors: United States. Dept. of Agriculture.
Series: Technical bulletin / United States Department of Agriculture -- no. 681; Technical bulletin (United States. Dept. of Agriculture) -- no. 681.
Publisher: U.S. Dept. of Agriculture
Published: 1939
Place of publication: Washington, D.C
Language: eng
Number of pages: 32
Subjects: Black grama grass; Grasses -- Varieties; Tobosa grass; Range management
Notes: Caption title.

"May 1939."

Literature cited: p. 31-32.