A mineral, vitamin or other substance that is essential, even in very small quantities, for growth or metabolism
Chemical element necessary for growth found in small amounts, usually < 100 mg kg-1 in a plant These elements consist of B, Cl, Cu, Fe, Mn, Mo, and Zn
A chemical element necessary only in extremely small amounts (usually <50 ppm in the plant) for the growth of plants These elements include B, Cl, Cu, Fe, Mn, Mo, and Zn
An element required in proportionately smaller amounts by plants but still important for healthy plant growth Micronutrients include Iron (Fe), Manganese (Mn), Zinc (Zn), Copper (Cu), Boron (B), and Molybdenum (Mo) cf Macronutrient
A chemical element required only in small amounts (usually less than one part per million [ppm] in the plant) for the growth of plants ADVANCE \x 540
A plant nutrient found in relatively small amounts( -1) in plants These are usually B, Cl, Cu, Fe, Mn, Mo, Ni, Co, and Zn
A vitamin or mineral that the body must obtain from outside sources Micronutrients are essential to the body in small amounts because they are either components of enzymes (the minerals) or act as coenzymes in managing chemical reactions See also Vitamin
a substance needed only in small amounts for normal body function (e g , vitamins or minerals)
A nutrient necessary for plant survival but needed in relatively small quantities