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  2. Boron deficiency (plant disorder) - Wikipedia

    en.wikipedia.org/wiki/Boron_deficiency_(plant...

    Boron deficiency is also observed in basic soils with a high pH because in basic conditions boric acid exists in an undissociated form which the plant is unable to absorb. [5] Soils with low organic matter content (<1.5%) are also susceptible to boron deficiency. Highly leached sandy soils are also characteristic of boron deficiency because the ...

  3. Physiological plant disorder - Wikipedia

    en.wikipedia.org/wiki/Physiological_plant_disorder

    Many annual plants, or plants grown in frost free areas, can suffer from damage when the air temperature drops below 40 degrees Fahrenheit (4 degrees Celsius). Tropical plants may begin to experience cold damage when the temperature is 42 to 48 °F (5 to 9 °C), symptoms include wilting of the top of the stems and/or leaves, and blackening or ...

  4. Category:Physiological plant disorders - Wikipedia

    en.wikipedia.org/wiki/Category:Physiological...

    Download as PDF; Printable version; In other projects ... Blackheart (plant disease) Boron deficiency (plant disorder) C. ... Template:Plant nutrition; Potassium ...

  5. Template:Plant nutrition - Wikipedia

    en.wikipedia.org/wiki/Template:Plant_nutrition

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  6. Micronutrient deficiency - Wikipedia

    en.wikipedia.org/wiki/Micronutrient_deficiency

    In plants a micronutrient deficiency (or trace mineral deficiency) is a physiological plant disorder which occurs when a micronutrient is deficient in the soil in which a plant grows. Micronutrients are distinguished from macronutrients ( nitrogen , phosphorus , sulfur , potassium , calcium and magnesium ) by the relatively low quantities ...

  7. Boron deficiency - Wikipedia

    en.wikipedia.org/wiki/Boron_deficiency

    Boron deficiency may refer to: Boron deficiency (plant disorder) , a nutritional disorder in plants Boron deficiency (medicine) , a nutritional disorder in animals

  8. Plant nutrition - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrition

    Plant nutrition is the study of the chemical elements and compounds necessary for plant growth and reproduction, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite .

  9. Soil guideline value - Wikipedia

    en.wikipedia.org/wiki/Soil_guideline_value

    Soil Guideline Values (SGVs) are figures which are used in non-statutory technical guidance for assessors carrying out risk assessments to determine whether land is considered "contaminated" under United Kingdom law, that is "land which appears to... be in such a condition, by reason of substances in, on or under the land, that (a) significant harm is being caused or there is a significant ...