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  2. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    Major two-component fertilizers provide both nitrogen and phosphorus to the plants. These are called NP fertilizers. The main NP fertilizers are monoammonium phosphate (MAP) NH 4 H 2 PO 4. With 11% nitrogen and 48% P 2 O 5. diammonium phosphate (DAP). (NH 4) 2 HPO 4. With 18% nitrogen and 46% P 2 O 5; About 85% of MAP and DAP fertilizers are ...

  3. Ammonium dihydrogen phosphate - Wikipedia

    en.wikipedia.org/wiki/Ammonium_dihydrogen_phosphate

    Ammonium dihydrogen phosphate (ADP), also known as monoammonium phosphate (MAP) [5] is a chemical compound with the chemical formula (NH 4)(H 2 PO 4). ADP is a major ingredient of agricultural fertilizers [ 6 ] and dry chemical fire extinguishers .

  4. Soil map - Wikipedia

    en.wikipedia.org/wiki/Soil_map

    Soil map from "Geography of Ohio," 1923. A soil map is a geographical representation showing diversity of soil types or soil properties (soil pH, textures, organic matter, depths of horizons etc.) in the area of interest. [1]

  5. Labeling of fertilizer - Wikipedia

    en.wikipedia.org/wiki/Labeling_of_fertilizer

    Fertilizers are usually labeled with three numbers, as in 18-20-10, indicating the relative content of the primary macronutrients nitrogen (N), phosphorus (P), and potassium (K), respectively. More precisely, the first number ("N value") is the percentage of elemental nitrogen by weight in the fertilizer; that is, the mass fraction of nitrogen ...

  6. Phosphate mining in the United States - Wikipedia

    en.wikipedia.org/wiki/Phosphate_mining_in_the...

    In 2013, about 90 percent of phosphate rock was used in fertilizer manufacture. Other uses included animal feed and detergents. [4] Geography

  7. HuffPost Data

    projects.huffingtonpost.com/projects

    An interactive map showing how opioid abuse rates outpace treatment capacity 2 to 1. 350 Miles For Treatment.

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