The relations between crop yields and precipitation in the Great Plains area
Subtitle: Crop rotations and tillage methods
By: by E.C. Chilcott
Series: Miscellaneous circular / United States Department of Agriculture -- no. 81 Supplement 1; Miscellaneous circular (United States. Dept. of Agriculture) -- no. 81.
Publisher: U.S. Dept. of Agriculture
Published: 1931
Place of publication: Washington, D.C
Language: eng
Number of pages: 164
Subjects: Crop yields; Statistics; Precipitation (Meteorology); Crop rotation; Tillage
Other titles: Crop rotations and tillage methods.
Notes: Caption title.