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Mineral and organic forms of nitrogen in some Michigan soils and an agro-economic evaluation of their potential usefulness for advisory purposes

Mineral and organic forms of nitrogen in some Michigan soils and an agro-economic evaluation of their potential usefulness for advisory purposes

Singh, Bhubneshwar Narain

Text (1960)

Part of Electronic Theses & Dissertations

Influence of cultivation, cropping systems, and crop residues on the content and distribution of nitrogen forms in soils

Influence of cultivation, cropping systems, and crop residues on the content and distribution of nitrogen forms in soils

Burutolu, Ebinimi F. A.

Text (1985)

Part of Electronic Theses & Dissertations