Day length and crop yields /

Day length and crop yields /

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Bibliographic Details
Author / Creator:	Parker, M. W. (Marion Wesley), 1907-
Imprint:	Washington, D.C. : U.S. Dept. of Agriculture, 1942.
Description:	22 p. : ill. ; 23 cm.
Language:	English
Series:	Miscellaneous publication / United States Department of Agriculture ; no. 507 Miscellaneous publication (United States. Department of Agriculture) no. 507.
Subject:	Plants -- Effect of light on Crop yields Plant photoperiodism Crop yields. Plant photoperiodism. Plants -- Effect of light on.
Format:	U.S. Federal Government Document Print Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/4048772

Hidden Bibliographic Details
Other authors / contributors:	Borthwick, H. A. (Harry Alfred), 1898-
Notes:	Cover title. "Issued September 1942."

Mansueto

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Call Number:	S21.C2 no.507
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