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essential element

A Dictionary of Plant Sciences | 1998 | | © A Dictionary of Plant Sciences 1998, originally published by Oxford University Press 1998. (Hide copyright information) Copyright

essential element A chemical nutrient that is vital for the successful growth and development of an organism. Elements needed in relatively large amounts are termed macronutrients; those needed only in small or minute quantities are called micronutrients or trace elements. Macronutrient elements include carbon, hydrogen, oxygen, nitrogen, sulphur, phosphorus, potassium, magnesium, and calcium. Important micronutrient elements include iron, manganese, zinc, copper, boron, molybdenum, and cobalt.

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MICHAEL ALLABY. "essential element." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 27 Dec. 2009 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "essential element." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (December 27, 2009). http://www.encyclopedia.com/doc/1O7-essentialelement.html

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