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Subjects fertilizers Remove constraint fertilizers: fertilizers Subjects agricultural research Remove constraint agricultural research: agricultural research Collections Organic Roots Collection Remove constraint Organic Roots Collection: Organic Roots Collection

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Author:: United States Office of Experiment Stations.
Subject:: Agriculture United States , agricultural research , forage crops , fertilizers
Physical description:: 32 p. : ill. ; 23 cm.
Additional Author(s):: United States Office of Experiment Stations.
Collection:: Organic Roots Collection
Series:: Farmers' bulletin

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