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  2. Nitrogen deficiency - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_deficiency

    Nitrogen deficiency is a deficiency of nitrogen in plants. This can occur when organic matter with high carbon content, such as sawdust, is added to soil. [1] Soil organisms use any nitrogen available to break down carbon sources, making nitrogen unavailable to plants. [1] This is known as "robbing" the soil of nitrogen.

  3. Potting soil - Wikipedia

    en.wikipedia.org/wiki/Potting_soil

    A flowerpot filled with potting soil. Potting soil or growing media, also known as potting mix or potting compost (UK), is a substrate used to grow plants in containers. The first recorded use of the term is from an 1861 issue of the American Agriculturist. [1] Despite its name, little or no soil is usually used in potting soil.

  4. How To Garden with Perlite Potting Soil - AOL

    www.aol.com/lifestyle/garden-perlite-potting...

    Buy it pre-mixed into soils at a garden center, or make your own by mixing up to one-third part perlite with your soil. For succulents and orchids, you can use more. “Make sure to water your ...

  5. Plug (horticulture) - Wikipedia

    en.wikipedia.org/wiki/Plug_(horticulture)

    Establishing a garden using plug plants is often easier than doing so starting from seed. [3] According to the American National Standards a plug is a cylinder of medium in which a plant is grown. The term is generally used to describe seedlings and rooted cuttings which have been removed from the container but with the medium held intact by ...

  6. Hydroponics - Wikipedia

    en.wikipedia.org/wiki/Hydroponics

    The water is released over the plant's roots and then runs back into the reservoir below in a constantly recirculating system. As with deep water culture, there is an airstone in the reservoir that pumps air into the water via a hose from outside the reservoir. The airstone helps add oxygen to the water.

  7. 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 ...

  8. Soil gas - Wikipedia

    en.wikipedia.org/wiki/Soil_gas

    Soil gases (soil atmosphere [1]) are the gases found in the air space between soil components. The spaces between the solid soil particles, if they do not contain water, are filled with air. The primary soil gases are nitrogen, carbon dioxide and oxygen. [2] Oxygen is critical because it allows for respiration of both plant roots and soil ...

  9. Good agricultural practice - Wikipedia

    en.wikipedia.org/wiki/Good_agricultural_practice

    Prevent soil salinization by limiting water input to needs, and recycling water whenever possible; Avoid crops with high water requirements in a low availability region; Avoid drainage and fertilizer run-off; Maintain permanent soil covering, in particular in winter to avoid nitrogen run-off; Manage carefully water table, by limiting heavy ...

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