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Soils in Our Environment

Duane T. Gardiner, Raymond W. Miller - Technology & Engineering - 2008 - 648 pages
Based on the most current scientific developments in all areas, this time-honored, broad introduction to soil sciences covers the complete spectrum of traditional and state-of ...
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Our Soils and Their Management

Roy Luther Donahue - Soils - 1955 - 456 pages
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Fertilizers and Soil Amendments

Roy H. Follett, Larry S. Murphy, Roy Luther Donahue - Crops - 1981 - 582 pages
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Principles of Soil Conservation and Water Management

Hanumappa Ramappa Arakeri, Roy Luther Donahue - Nature - 1984 - 290 pages
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Our Soils and Their Management: Increasing Production Through Soil and Water ...

Roy Luther Donahue - Crops and soils - 1970 - 714 pages
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Soil and Water Conservation for Productivity and Environmental Protection

Frederick R. Troeh, James Arthur Hobbs, Roy Luther Donahue - Business & Economics - 1980 - 742 pages
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Our Soils and Their Management: An Introduction to Soil and Water Conservation

Roy Luther Donahue - Soils - 1961 - 588 pages
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Forest-site Quality Studies in the Adirondacks: Tree growth as ..., Volume 1

Roy Luther Donahue - Forest site quality - 1940 - 52 pages
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Exploring Agriculture

Everett F. Evans, Roy Luther Donahue - Agriculture - 1957 - 392 pages
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The Agriculture Dictionary

Ray V. Herren, Roy Luther Donahue - Science - 1991 - 568 pages
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