Which of the following is a soil micro-nutrient? by Sunday | Jul 5 | Agricultural Science WAEC | 0 comments A. magnesium B. potassium C. calcium D. iron E. phosphorus Correct Answer: Option D – iron Users Also Read These:The removal of top soil from a small area of soil…Which of the following soil water is tightly held to…The relative proportion of each fraction of soil in… In the determination of soil texture, a soil…A fresh soil sample of mass 180 g had a mass of 120…