How to grow one hundred bushels of corn per acre on worn soils Smith, William Cadid, 1857- creator text book Cincinnati Stewart & Kidd Company 1912 1912 2d ed., rev., enl. and illustrated.
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ENG Corn Fertilizers Manures Soils SB191.M2 S62 1912 https://www.biodiversitylibrary.org/bibliography/42992 9058080 12009153 10.5962/bhl.title.42992 DLC