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Subject Fertilizers Remove constraint Subject: Fertilizers

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    • 1909

    The top photographic reproduction is entitled "The Results of Assisting Nature" and depicts Swedish turnips grown with varying amounts of mineral manure and nitrogenous fertilizers. The bottom illustration is titled "An…

    • 1909

    Photographic reproduction depicts bundles of wheat grown on an experimental farm at Rothamsted, England with varying amounts of manure and chemical fertilizers. The first column shows the year 1878 with the second…

    • Chemical Fertilizers Manufactured by St. Gobain
    • circa 1925

    Advertising postcard for St. Gobain, or Compagnie de Saint-Gobain, depicts a man pointing to a map of St. Gobain's chemical fertilizer plants located in France. Text underneath the map states "26 usines" or factories,…

    • circa 1926

    U.S. Department of Agriculture exhibition display concerning fertilizer values as determined by per cent of plant food. The display includes several photographs of a range of agricultural crops, including wheat, cotton,…

    • 1950s – circa

    General view of fertilizer trays on a suspension apparatus at an unidentified U.S. Department of Agriculture facility.

    • 1953-Jul-15

    General view of the trays used to expose fertilizer to humidity in the Air Control Room at the U.S. Department of Agriculture's Agricultural Engineering Laboratory.

    • circa 1928

    Four stoppered jars containing samples of commercial fertilizer and concentrated fertilizer mixtures produced at the Arlington Experimental Farm in Arlington, Virginia. Established by an act of Congress in April 1900,…