Abstract:
Large quant it ies of Epsom Salt (MgS04.7H20) and Kiesserite (MgS04.H20) are imported
to Sri Lanka, ~IS fertilisers, for the cultivation of annual crops, such as cereals, fruits and
vegetables and for the cultivation of perennial crops, such as tea, rubber and coconut. The
element Mg is essential to all types of plants since it is required to produce chlorophyl, the
green colour pigment in leaves, which absorbs solar radiation to energise photosynthesis
reactions that produce carbohydrates by combining carbon dioxide and water. Mg is also
required for metabolism and bioenergetics of a plant
