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  2. Phosphorus deficiency - Wikipedia

    en.wikipedia.org/wiki/Phosphorus_deficiency

    Phosphorus is a key molecular component of genetic reproduction. When phosphorus is present in inadequate levels, genetic processes such as cell division and plant growth are impaired. Hence, phosphorus deficient plants may mature at a slower rate than plants with adequate amounts of phosphorus.

  3. Phosphorus cycle - Wikipedia

    en.wikipedia.org/wiki/Phosphorus_cycle

    The phosphorus cycle is the biogeochemical cycle that involves the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.Unlike many other biogeochemical cycles, the atmosphere does not play a significant role in the movement of phosphorus, because phosphorus and phosphorus-based materials do not enter the gaseous phase readily, [1] as the main source of gaseous phosphorus ...

  4. Nutrient pollution - Wikipedia

    en.wikipedia.org/wiki/Nutrient_pollution

    Nitrogen, phosphorus and potassium are the "Big 3" primary nutrients in commercial fertilizers, each of these fundamental nutrients play a key role in plant nutrition. [4] When nitrogen and phosphorus are not fully utilized by the growing plants, they can be lost from the farm fields and negatively impact air and downstream water quality. [5]

  5. Call to tackle phosphorus impact on food and water security - AOL

    www.aol.com/call-tackle-phosphorus-impact-food...

    Poor management of phosphorus is leading to water pollution and food shortages, with farmers struggling to afford some fertilisers for their crops. Call to tackle phosphorus impact on food and ...

  6. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    No known function in humans, and is not taken up by plants. [11] Toxic in some forms. tin: 50: 4a: In mammals, deprivation causes impaired reproduction and other abnormal growth, [21] suggesting that it is an essential element. Tin may have a role in tertiary structure of proteins. Some plants are tin hyperaccumulators, possibly to deter herbivory.

  7. Eutrophication - Wikipedia

    en.wikipedia.org/wiki/Eutrophication

    Phosphorus is the limiting factor for plant growth in most freshwater ecosystems, [15] and because phosphate adheres tightly to soil particles and sinks in areas such as wetlands and lakes, [16] due to its prevalence nowadays more and more phosphorus is accumulating inside freshwater bodies.

  8. Reuse of human excreta - Wikipedia

    en.wikipedia.org/wiki/Reuse_of_human_excreta

    In the case of phosphorus in particular, reuse of excreta is one known method to recover phosphorus to mitigate the looming shortage (also known as "peak phosphorus") of economical mined phosphorus. Mined phosphorus is a limited resource that is being used up for fertilizer production at an ever-increasing rate, which is threatening worldwide ...

  9. 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 ...