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Creator: Lucas, Robert E. (Robert Elmer), 1916-
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Electronic Theses & Dissertations
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Theses
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English
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In Copyright
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Subject
Soils
1
Soils--Copper content
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Soils--Manganese content
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Soils--Zinc content
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The effects of copper applied to organic soil alone and in association with manganese and zinc, on composition of crops and reactions in the soil
Lucas, Robert E. (Robert Elmer), 1916-
Text (1947)
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