Plants require macro-and micronutrients, each of which is critical to completing a plant's life cycle. Adequate nutrient supply has a major impact on plant growth and is therefore of crucial importance in agriculture.
From atmosphere through photosynthesis are Hydrogen, Carbon and Oxygen.
From the soil are Nitrogen, Phosphorus, Potassium, Sulfur, Magnesium, Calcium, Iron, Boron, Manganese, Zinc, Molybdenum and Copper.
It also includes the investigation of mineral digestion of plants; physiology of yield advancement; natural and mineral preparation with respect to their effects on the yield and nature of plants; and environmental parts of plant sustenance.