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Davis, J. V. (3)
Earhart, David R. (3)
Haby, Vincent A. (3)
Leonard, Allen T. (3)
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nitrogen (3)
broccoli (1)cabbage (1)fertilizer (1)horticulture (1)limestone (1)onion (1)potassium (1)soil (1)sweet potato (1)... View MoreDate Issued1989 (2)1992 (1)Type
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