Abstract
Micronutrients are important elements required by plants in small quantities. The most common micronutrients required by plants are iron (Fe), zinc (Zn), manganese (Mn), molybdenum (Mo), nikel (Ni), cobalt (Co) and copper (Cu). Cobalt as a micronutrient is essential for leguminous plants as beings well as human; it is a component of vitamin B12 and is involved in the fixation of N2 in the…