Science / Marine Biology / Nutrients: Those constituents required by organisms for maintenance and growth (we use this term in this book in application to plants)


Science / Biology / Micronutrients: Elements that are required by plants in very small quantities, but are toxic in large quantities: iron, manganese, molybdenum, copper, boron, zinc, and chloride. MORE

Essential Nutrients

Health / Vitamins / Essential Nutrients: Nutrients which must be supplied in the diet as they cannot be made in the body in the quantities required for normal health. MORE

Organic Nutrients

Science / Marine Biology / Organic Nutrients: Nutrients in the form of molecules synthesized by or originating from other organisms MORE

Secondary Macronutrients

Science / Biology / Secondary Macronutrients: Elements that plants require in relatively small quantities: calcium, magnesium, and sulfur. MORE


Science / Biology / Macronutrients: 1. Elements needed by plants in relatively large (primary) or smaller (secondary) quantities. 2. Foods needed by animals daily or on a fairly regular basis. MORE

Primary Macronutrients

Science / Biology / Primary Macronutrients: Elements that plants require in relatively large quantities: nitrogen, phosphorus, and potassium. MORE