Role of Molybdenum in Tomato Production

Molybdenum is an important component of nitrate reductase and thus involved in nitrogen metabolism as well as the synthesis of pigments and chlorophyll.

Molybdenum effect at growth stages

Stage Molybdenum effect
Establishment Ensure good shoot growth
Vegetative Growth Ensure growth is not limiting
See more on Tomato Growth Stages.

General guidelines for Molybdenum application

In comparison with other micronutrients molybdenum is only needed in very small quantities. Deficiency is more common in acidic rather than alkaline soils.

Molybdenum deficiencies in Tomato

Molybdenum deficiency symptoms start in the older leaves as a mottled chlorosis between the veins. The smallest veins also become chlorotic. The margins of the leaves curl upwards. With increasingly severe deficiencies, the chlorotic areas form necrotic spots. The leaves die back from the tips, leading to leaf death. Flower development can be inhibited and yield will be severely reduced.

See more about molybdenum and other nutrients deficiencies in tomatoes on Tomato Crop Nutrition.