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  2. 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 ...

  3. Soil - Wikipedia

    en.wikipedia.org/wiki/Soil

    Soils supply plants with nutrients, most of which are held in place by particles of clay and organic matter [41] The nutrients may be adsorbed on clay mineral surfaces, bound within clay minerals , or bound within organic compounds as part of the living organisms or dead soil organic matter. These bound nutrients interact with soil water to ...

  4. Soil organic matter - Wikipedia

    en.wikipedia.org/wiki/Soil_organic_matter

    The benefits of SOM result from several complex, interactive, edaphic factors; a non-exhaustive list of these benefits to soil function includes improvement of soil structure, aggregation, water retention, soil biodiversity, absorption and retention of pollutants, buffering capacity, and the cycling and storage of plant nutrients.

  5. Plant nutrition - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrition

    Phosphorus is most commonly found in the soil in the ... Hydroponics is a method for growing plants in a water-nutrient solution without using nutrient-rich soil or ...

  6. Topsoil - Wikipedia

    en.wikipedia.org/wiki/Topsoil

    Intensive farming methods to satisfy high food demands with high crop yields and growing crops in monocultures can deplete the soil nutrients and damage the soil microbiome. These factors can affect the consistency and quality of the soil resulting in increased erosion. Surface runoff from farm fields is a type of nonpoint source pollution.

  7. Soil fertility - Wikipedia

    en.wikipedia.org/wiki/Soil_fertility

    Soil fertility is a complex process that involves the constant cycling of nutrients between organic and inorganic forms. As plant material and animal wastes are decomposed by micro-organisms, they release inorganic nutrients to the soil solution, a process referred to as mineralization. Those nutrients may then undergo further transformations ...

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