Molybdenum

Nutrient Benefits

Antagonism

High Mo levels can reduce the availability of:

• Copper
• High Sulfur reduces Mo availability
• Nitrogen

Stimulation

• Good supply of Mo improves nitrogen uptake and conversion

Functions

• Co-factor in the enzyme nitrate-reductase
• Aids in the conversion of nitrates to ammonium (initial stage of synthesis of proteins)
• Helps plants to utilize nitrate N
• Essential for rhizobia to enable legume crops to fix aerobic (atmospheric) N
• Involved in phosphate and Fe metabolism

Deficiency Symptoms

• Similar to N deficiency
• Yellow, pale leaves
• Stunted growth
• Necrotic leaf margins and tips
• Symptoms begin in older leaves first
• Flower wither or are suppressed

Factors Affecting Availability

• Soils with low P levels
• Soils derived from parent materials low in Mo
• Low pH soils (especially if they contain Al or Fe oxides)

Sensitive Crops

• Cucurbits, crucifers, pulses

TREATMENT OPTIONS

The following OMEX products can assist with addressing and correcting Molybdenum deficiency:

• Dry Moly
• Pulse Primer
• Pulse Pak
• Primer Soybeans
• OMEX Moly
• OMEX Foliars

Visual Guide