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  2. Have you tested your garden soil? Here's what you should know

    www.aol.com/tested-garden-soil-heres-know...

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

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

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

    Do you know the nutrient level of the soil in your garden? Do you know how much fertilizer to add next season? Soil testing will answer both questions.

  4. Base-cation saturation ratio - Wikipedia

    en.wikipedia.org/wiki/Base-cation_saturation_ratio

    Base-cation saturation ratio (BCSR) is a method of interpreting soil test results that is widely used in sustainable agriculture, supported by the National Sustainable Agriculture Information Service (ATTRA) [1] and claimed to be successfully in use on over a million acres (4,000 km 2) of farmland worldwide.

  5. Plant tissue test - Wikipedia

    en.wikipedia.org/wiki/Plant_tissue_test

    Any laboratory test (soil or tissue test) performed by a commercial company will cost the grower a fee. Laboratory tests take at least a week to complete, usually 2 weeks. It takes time to dry the samples, send them to the lab, complete the lab-tests, and then return the results to the grower.

  6. Winogradsky column - Wikipedia

    en.wikipedia.org/wiki/Winogradsky_column

    Of specific interest are the red regions of the middle column, indicative of purple non-sulfur bacteria (e.g. Rhodospirillaceae). Also, in column three, the red growth along the side of the column: a purple sulfur bacterium, Chromatium. The Winogradsky column is a simple device for culturing a large diversity of microorganisms.

  7. The Best Soil Test Kits Will Help You Grow Your Perfect Garden

    www.aol.com/lifestyle/best-soil-test-kits-help...

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  8. 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 ...

  9. Soil test - Wikipedia

    en.wikipedia.org/wiki/Soil_test

    In geotechnical engineering, a soil test can be used to determine the physical characteristics of a soil, such as its water content, void ratio or bulk density. Soil testing can also provide information related to the shear strength, rate of consolidation and permeability of the soil. The following is a non-exhaustive list of engineering soil ...

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