The relations between crop yields and precipitation in the Great Plains area
By: by E.C. Chilcott
Series: United States. Dept. of Agriculture. Miscellaneous circular -- no. 81; Miscellaneous circular (United States. Dept. of Agriculture) -- no. 81.
Publisher: Govt. Print. Off.
Published: 1927
Place of publication: Washington
Language: eng
Number of pages: 94
Subjects: Agriculture; Statistics; Crops and climate; Rain and rainfall; Crop rotation
Other titles: Crop rotations and tillage methods.
Notes: Cover title.

Crop rotations and tillage methods, by E.C. Chilcott. Washington [U.S. Govt.print.off.] 1931. 164 p. diagrs. 29 cm. (U.S. Dept. of Agriculture. Miscellaneous circular no. 81, Supplement 1) Cover title. S21.A46 no. 81 Suppl. 1.