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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. Garden: It is time to test your garden soil - AOL

    www.aol.com/news/garden-time-test-garden-soil...

    The level of nutrients in the soil increases as we add fertilizers, manures, compost, mulch and lime or sulfur. Soil tests can also help gardeners and homeowners determine which plants grow best ...

  4. Soil acidification - Wikipedia

    en.wikipedia.org/wiki/Soil_acidification

    Acidification from leaf litter on the O-horizon is more pronounced under coniferous trees such as pine, spruce and fir, which return fewer base cations to the soil, rather than under deciduous trees; however, soil pH differences attributed to vegetation often preexisted that vegetation, and help select for species which tolerate them. Calcium ...

  5. Plant nutrition - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrition

    Plants take up essential elements from the soil through their roots and from the air through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H +) into the soil through proton pumps. These hydrogen ions displace cations attached to negatively charged soil particles so that the ...

  6. Sulfur assimilation - Wikipedia

    en.wikipedia.org/wiki/Sulfur_assimilation

    Sulfur assimilation is the process by which living organisms incorporate sulfur into their biological molecules. [1] In plants, sulfate is absorbed by the roots and then transported to the chloroplasts by the transipration stream where the sulfur are reduced to sulfide with the help of a series of enzymatic reactions .

  7. Organic fertilizer - Wikipedia

    en.wikipedia.org/wiki/Organic_fertilizer

    By adding manure to crops it adds nitrogen, potassium, phosphorus, sulfur, magnesium and calcium. [11] While also increasing soil stability by increasing organic material, increasing water infiltration, it can add bacteria diversity and over time reduce the impacts of soil erosion. [11] However, there is organic manure and non-organic manure.

  8. Acid sulfate soil - Wikipedia

    en.wikipedia.org/wiki/Acid_sulfate_soil

    The term ‘acid sulfate soil’ is useful for general discussion, but fails to capture nuances required for technical classification of soils. Additional terms such as ‘potential acid sulfate soil’ (PASS), ‘active acid sulfate soil’ (AASS) and ‘post-active acid sulfate soil’ (PAASS) helped researchers distinguish between the following:

  9. College Football Playoff bracket picks, predictions: Who will ...

    www.aol.com/sports/college-football-playoff...

    Michigan is just in their head. They went toe to toe at Eugene earlier this year. I think they win the rematch against Oregon in a Rose Bowl quarterfinal that might just feature the best two teams ...

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