
Nutrients in Hydroponics
Plants require specific nutrients to survive and develop properly. These are called essential nutrients because (1) plants cannot complete their lifecycle without them; (2) they perform specific functions that no other nutrient can replace; and (3) they are directly involved in the plant’s metabolic or structural processes.[1]In addition to the three non-mineral essential nutrients—hydrogen, oxygen and carbon—plants require 14 essential mineral nutrients. These are categorized as primary macronutrients, secondary macronutrients or micronutrients, depending on the amount needed (e.g., micronutrients are …