Cereal cropping, outlines of an illustrated lecture before the students of the University of Wisconsin, May 20th, 1913,

"Reprinted from Science, N.S., vol. xxxviii, no. 973, Aug. 22, 1913."

Nitrogen and carbon changes in Great Plains soils as influenced by cropping and soil treatments /

Chiefly tables.

Legumes and grasses in dryland cropping systems in the northern and central Great Plains : a review of the literature /

Includes bibliographical references (p. 60-64).

Effects of cereal species, legume species, and nitrogen on no-till winter wheat and rye grown with perennial forage legume living mulches /

Thesis (Ph. D.)--Cornell University, May, 1988.

Tillage options for conservation farmers.

Shipping list no.: 89-80-P.