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  2. Agricultural lime - Wikipedia

    en.wikipedia.org/wiki/Agricultural_lime

    A bulk lime spreader operating at Canterbury Agricultural College, 1949. Agricultural lime, also called aglime, agricultural limestone, garden lime or liming, is a soil additive made from pulverized limestone or chalk.

  3. Ultisol - Wikipedia

    en.wikipedia.org/wiki/Ultisol

    Map of the United States showing what percentage of the soil in a given area is classified as an Ultisol-type soil. The great majority of the land area classified in the highest category (75%-or-greater Ultisol) lies in the South and overlays with the Piedmont Plateau, which runs as a diagonal line through the South from southeast (in Alabama) to northwest (up into parts of Maryland).

  4. International Fertilizer Development Center - Wikipedia

    en.wikipedia.org/wiki/International_fertilizer...

    IFDC was established, in part, because by 1975, the Tennessee Valley Authority's National Fertilizer Development Center (NFDC) began receiving an amount of international assistance calls that exceeded the capabilities of the center's staff to fulfill both international demand and domestic programs.

  5. Tennessee Valley Authority - Wikipedia

    en.wikipedia.org/wiki/Tennessee_Valley_Authority

    The Tennessee Valley Authority is a government-owned corporation created by U.S. Code Title 16, Chapter 12A, the Tennessee Valley Authority Act of 1933.It was initially founded as an agency to provide general economic development to the region through power generation, flood control, navigation assistance, fertilizer manufacturing, and agricultural development.

  6. Plant nutrients in soil - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrients_in_soil

    Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...

  7. History of fertilizer - Wikipedia

    en.wikipedia.org/wiki/History_of_fertilizer

    Other European and North American fertilizer companies developed their market share, forcing the English pioneer companies to merge, becoming Fisons, Packard, and Prentice Ltd. in 1929. [ citation needed ] Together they produced 85,000 tons of superphosphate/year in 1934 from their new factory and deep-water docks in Ipswich .