Non-mineral essential elements are

The plant requires many essential elements for normal growth and development. These are called as essential elements. Mineral elements are those elements that plant absorbs from the soil. The essential mineral elements include nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, chlorine, iron, manganese, zinc, copper, molybdenum, and nickel. The essential nonmineral elements include oxygen, hydrogen, and carbon.