Which of the following is a soil micro-nutrient? By: Sunday|Published on: Jul 5|Categories: 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 function of soil micro-organisms include the…Â In the determination of soil texture, a soil…The most important soil micro-organism causing decay…Nutrient replenishment in soil can be enhanced by?Which of the following nutrient element is a macro-nutrient?SEE ALSO Coccidiosis can be treated with?