Sampling hop yards and chemical determination of hop maturity
By: [ S. T. Likens]
Contributors: United States. Agricultural Research Service
Series: ARS 34 -- 17; ARS 34 -- 17.
Publisher: U.S. Dept. of Agriculture, Agricultural Research Service
Published: 1960
Place of publication: [Beltsville, Md.]
Language: eng
Number of pages: 23
Subjects: Hops; Harvesting; Analysis; Research
Notes: Cover title.

"July 1960."

At head of title: Crops research.