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  2. Fertilizer. Nitrogen is critical for the growth of all plants—they use it to create the chlorophyll necessary for photosynthesis. ... nitrogen-rich fertilizer every other week," says Roman. How ...

  3. 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 ...

  4. Compost - Wikipedia

    en.wikipedia.org/wiki/Compost

    Compost is a mixture of ingredients used as plant fertilizer and to improve soil's physical, chemical, and biological properties. It is commonly prepared by decomposing plant and food waste, recycling organic materials, and manure.

  5. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    This ammonia is used as a feedstock for all other nitrogen fertilizers, such as anhydrous ammonium nitrate (NH 4 NO 3) and urea (CO(NH 2) 2). Deposits of sodium nitrate (NaNO 3) (Chilean saltpeter) are also found in the Atacama Desert in Chile and was one of the original (1830) nitrogen-rich fertilizers used. [35] It is still mined for ...

  6. Manure - Wikipedia

    en.wikipedia.org/wiki/Manure

    Manure is organic matter that is used as organic fertilizer in agriculture. Most manure consists of animal feces; other sources include compost and green manure. Manures contribute to the fertility of soil by adding organic matter and nutrients, such as nitrogen, that are utilised by bacteria, fungi and other organisms in the soil.

  7. Biofertilizer - Wikipedia

    en.wikipedia.org/wiki/Biofertilizer

    Anabaena, in association with the water fern Azolla, can contribute nitrogen up to 60 kg/ha/season and can also enrich soils with organic matter. [3] [4] Seaweeds are rich in various types of mineral elements (potassium, phosphorus, trace elements, etc.), hence they are extensively used as a form of manure replacement by people of coastal ...

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