Management: Foliar spray of Ferrous Sulphate (0.5%) with citric acid or Fe-EDDHA.

(d) Manganese (Mn)

Role: Enzyme activator, photosynthesis, nitrogen metabolism.

Deficiency: Yellow patches on leaves, poor growth, poor flowering.

Management: Foliar spray of Manganese Sulphate (0.3–0.5%).

(e) Copper (Cu)

Role: Lignin formation, disease resistance, reproductive growth.

Deficiency: Leaf tip drying, weak stems, poor growth.

Management: Foliar spray of Copper Sulphate (0.2%).

(f) Molybdenum (Mo)