Zinc deficiency-Tomato | Yara Malaysia

Symptoms
Affected leaves are dark green with chlorotic brightenings along the main vein, in the middle of the leaf blade. The tissue looks strong and leathery, being slightly cupped downward.

Reasons
Zinc deficiency High phosphorus levels or anaerobic conditions can induce deficiencies. A lack of Zinc occurs only rarely in greenhouse crops.

Tomato - Deformation

Symptoms
Affected leaves are dark green with chlorotic brightenings along the main vein, in the middle of the leaf blade. The tissue looks strong and leathery, being slightly cupped downward.

Reasons
Zinc deficiency High phosphorus levels or anaerobic conditions can induce deficiencies. A lack of Zinc occurs only rarely in greenhouse crops.

Tomato - Deformation

Symptoms
Affected leaves are dark green with chlorotic brightenings along the main vein, in the middle of the leaf blade. The leaf tissue looks strong and leathery, being slightly cupped downward. Shortened internodes give the plant a dense, compressed and stiff habitus.

Reasons
Zinc deficiency High phosphorus levels or anaerobic conditions can induce deficiencies. A lack of Zinc occurs only rarely in greenhouse crops.

Zinc deficiency made worse by

Organic soils
High pH soils
Soils rich in phosphorus
Soils receiving high phosphorus application
Cold wet conditions

Zinc is important for

Correct functioning of many enzyme systems
Synthesis of nucleic acid
Auxin metabolism
Important for internode elongation and leaf development