Relative contributions of major technological factors and moisture stress to increased grain yields in the Midwest, 1930-71 /

Relative contributions of major technological factors and moisture stress to increased grain yields in the Midwest, 1930-71 /

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Bibliographic Details
Author / Creator:	Perrin, Richard K.
Imprint:	Ames : Center for Agricultural and Rural Development, Iowa State University, 1975.
Description:	iii, 43 leaves ; 24 cm.
Language:	English
Series:	CARD report 55
Subject:	Grain -- Middle West. Crop yields -- Middle West. Crops and climate -- Middle West. Agricultural innovations -- Middle West. Crops and water -- Middle West. Agricultural estimating and reporting -- Middle West. Agricultural estimating and reporting. Agricultural innovations. Climatology. Crop yields. Crops and water. Grain -- Yields. Middle West.
Format:	Print Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/306732

Hidden Bibliographic Details
Other title:	Relative contributions of major technological factors ...
Other authors / contributors:	Heady, Earl O. (Earl Orel), 1916-1986 joint author.
ISBN:	$1.00
Notes:	Bibliography: leaves 40-43.

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