Multiple choice MACRONUTRIENTS are N, P, K, Ca, Mg, S N, P, K, Ca, Mg, B De, P, K, Ca, Mg, S N, P, B, Ca, Mg, S Reveal answer Fill a bubble to check yourself A Correct answer Explanation Macronutrients are elements required by plants in larger quantities. These include Nitrogen (N), Phosphorus (P), Potassium (K), Calcium (Ca), Magnesium (Mg), and Sulfur (S).