Mineral elements which are needed by some plants in very small quantities. If the plants you are growing require specific 'trace elements' and they are not available in the soil, they must be added.
Substance which an organism must obtain from its environment to maintain health, though necessary only in minute amounts, either vitamins or trace elements.
Vitamins or Minerals that are needed in daily amounts up to a few milligrams.
also referred to as TRACE ELEMENTS, including S, Fe, Mn, B, Mb, An and Cu.
Micro-nutrients are needed in smaller quantities than macro-nutrients. They are not a source of energy but are required by the body to function properly and maintain health. Micro-nutrients include vitamins and minerals.