Description:- Today, many economically important agricultural, horticultural and ornamental crop plants are attacked by various soil borne and foliar diseases, resulting in billions of dollars in crop losses. The nutritional requirements of different plants, crops and ways to enhance soil fertility, which has greatly benefited agricultural botany. Food security is a major global concern. It depends to a considerable extent on efficient plant nutrition. Extensive information on various aspects of plant nutrition has been generated in the recent past.