DENDROLOGY

Detailed explanation-1: -Plants use nitrates as a supply of nitrogen, which is needed to make proteins for healthy growth. Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces.

Detailed explanation-2: -For healthy growth plants need mineral ions including:-Nitrate for producing amino acids which are then used to form proteins.

Detailed explanation-3: -Glucose is joined with nitrates absorbed from the soil to make amino acids . These are joined together to make proteins during protein synthesis .