Effects of cropping and management on nitrogen and organic carbon contents of a western Kansas soil /
Hobbs, J. Arthur(James Arthur),1914-author.
Brown, P. L.(Paul L.),author.
Kansas Agricultural Experiment Station.
Caption title.
"November 1965."
Includes bibliographical references (page 21).
Cropping systems
Soils
Soils
Cropping systems.
Soils
Soils