Macronutrients In Plants

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Introduction
The soil contains lots of different types of elements which are important for the proper growth of a plant. The elements can be classified as being either macronutrients or micronutrients (or trace elements) where the macronutrients have quite a broad sufficiency range while the micronutrients have a narrow sufficiency range. It is more common that a plant is intoxicated due to high level of micronutrients rather than high level of macronutrients. Some examples of macronutrients are Carbon, Oxygen, Hydrogen, Calcium, Nitrogen, Potassium, Magnesium, Sulfur and Phosphorus while examples of micronutrients are Iron, Manganese, Zinc, Copper, Nickel, Cobalt, Boron and Molybdenum. Plants only require a little amount of trace elements to grow properly since those element help in the plant’s …show more content…

However, due to natural causes but mainly pollution, the concentration of the trace elements (also considered to be heavy metals) in the soil has been increased thereby leading to heavy metal pollution. The heavy metal pollution not only affect the soil and plants, but also human …show more content…

Main source of accumulation of these heavy metals is due to over use of fertilizers, pesticides, atmospheric decomposition, sewage sludge and waste products from industries (Nicholson et al., 2003).
Plants will absorb metals from the soil to mainly produce enzymes which have important physiological roles. However, the metal uptake of plants depends on several factors where the most important ones are; the soil pH, the concentration of the metal in the soil, the cation exchange capacity (CEC), species of plant and organic matter content (Jung, 2008). It has been shown that pH and cation exchange capacity will affect the retardation factor of metal hence leading to the adsorption of the heavy metals as well as the metals’ retention and movement in the soil. As a result, all these factors

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