Effects of cropping and management on nitrogen and organic carbon content of a w
Hobbs, J.A., Brown, P.L.
Effects of cropping and management on nitrogen and organic carbon content of a w - Kansas 1965 - 38 p. - No. 144; Kansas Agricultural E .
Effects of cropping and management on nitrogen and organic carbon content of a w - Kansas 1965 - 38 p. - No. 144; Kansas Agricultural E .