Hydrogen (H), derived almost entirely from water, is one of the 17 essential nutrients necessary for plant growth. Hydrogen, along with carbon and oxygen, are the three primary elements plants use in the largest amounts, and they perform as the building blocks for plant growth.
Nearly all organic compounds also contain H atoms, which explains why plants need the H they get from water molecules through photosynthesis.
Hydrogen ions are vital in both aiding proton gradients to help drive the electron transport chain in photosynthesis, and for plant respiration.
Hydrogen is necessary for building sugars and other molecules to produce glucose for plant energy.
Known as a structural element, H is present in both the atmosphere and the growing environment.