A nutrient or element that is essential for plant growth but is needed in a very small quantity. Also referred to as trace elements, the most common of these are iron, manganese, boron, copper, zinc, and molybdenum.
A nutrient or element that is essential for plant growth but is needed in a very small quantity. Also referred to as trace elements, the most common of these are iron, manganese, boron, copper, zinc, and molybdenum.