Macronutrient requirements

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  • A plant nutrient is a chemical element that is essential for plant growth and reproduction. Essential element is a term often used to identify a plant nutrient. The term nutrient implies essentiality, so it is redundant to call these elements essential nutrients. Commonly, for an element to be a nutrient, it must fit certain criteria. The principal criterion is that the element must be required for a plant to complete its life cycle. The second criterion is that no other element substitutes fully for the element being considered as a nutrient.

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  • A plant nutrient is a chemical element that is essential for plant growth and reproduction. Essential element is a term often used to identify a plant nutrient. The term nutrient implies essentiality, so it is redundant to call these elements essential nutrients. Commonly, for an element to be a nutrient, it must fit certain criteria. The principal criterion is that the element must be required for a plant to complete its life cycle. The second criterion is that no other element substitutes fully for the element being considered as a nutrient.

    pdf662p cronus75 14-01-2013 36 6   Download

  • Intravenous nutrition (IVN), also known as parenteral nutrition (PN), involves the administration of nutrients, electrolytes, minerals and fluid directly into patients’ veins. It is used in patients whose gastrointestinal absorption of food and/or fluids is inadequate, unsafe or inaccessible. Infusing a mixture of nutrients and fluid, however, is not without risk.

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