Cooperative studies on the effects of height of ridge, nitrogen supply, and time of harvest on yield and flesh color of the Porto Rico sweetpotato
By: by J.B. Edmond ... [et al.].
Series: Circular / United States Department of Agriculture -- no. 832; Circular (United States. Dept. of Agriculture) -- no. 832.
Publisher: U.S. Dept. of Agriculture
Published: 1950
Place of publication: Washington, D.C
Language: eng
Number of pages: 40
Subjects: Sweet potatoes; Harvesting time
Notes: Caption title.

Bibliography: p. 40.