• Wear chemical-resistant gloves and safety goggles when handling
• Use a dust mask or respirator when measuring dry powder to avoid inhalation
• Wash hands and exposed skin thoroughly after handling
• Do not eat, drink, or smoke while handling product

• Store in a cool, dry place in the original sealed container
• Keep away from direct sunlight and heat sources
• Keep out of reach of children, pets, and livestock
• Do not store near food, feed, or drinking water
• Product is stable when stored properly — no special temperature requirements

• Never exceed recommended application rates — molybdenum toxicity in forage crops can harm livestock
• Always confirm deficiency through soil or tissue testing before applying
• In acidic soils (pH < 6.0), consider liming as an alternative correction method
• High sulfur levels can induce Mo deficiency — adjust sulfate applications accordingly
• Do not apply to pasture or forage crops without calculating total Mo accumulation
• Seed treatment is the most efficient and safest application method

• Eye contact: Flush with clean water for 15 minutes. Remove contact lenses if present. Seek medical attention if irritation persists
• Skin contact: Remove contaminated clothing. Wash affected area with soap and water
• Ingestion: Do not induce vomiting. Rinse mouth with water. Contact Poison Control (1-800-222-1222) or seek medical attention
• Inhalation: Move to fresh air. Seek medical attention if respiratory symptoms develop

Refer to the Safety Data Sheet (SDS) for complete safety information.

Sodium molybdate is a water-soluble fertilizer containing 39% molybdenum, an essential micronutrient required for two critical enzyme systems in plants. First, it's a component of nitrate reductase, which converts nitrate (NO₃⁻) to nitrite (NO₂⁻) — the first step in converting nitrate nitrogen into amino acids and proteins. Second, it's essential for nitrogenase enzyme in nitrogen-fixing bacteria found in legume root nodules, enabling biological nitrogen fixation. Without adequate molybdenum, plants cannot efficiently use nitrogen, leading to stunted growth and deficiency symptoms even when nitrogen is abundant. For more on how micronutrients affect plant health, see our article on Essential Micronutrients for Healthier Plants.

Molybdenum deficiency symptoms vary by crop but commonly include: whiptail in cauliflower (narrow, strap-like, distorted leaves with ragged edges), pale green to yellow leaves similar to nitrogen deficiency, upward cupping or rolling of leaf margins, scorched necrotic edges on older leaves, and poor nodulation in legumes (pink nodules turn green/white with reduced N-fixation). Deficiency is most common in acid soils (pH below 6.0), sandy soils with low organic matter, and after heavy rainfall that leaches molybdate ions. Since Mo deficiency often mimics nitrogen deficiency, see our guide on 8 Reasons Why Plant Leaves Turn Yellow to help differentiate the cause.

The most efficient methods depend on your crop and situation. Seed treatment (1-4 oz per 100 lbs seed) is the most efficient — it places molybdenum exactly where needed and lasts the entire season, ideal for legumes. Foliar spray (1-4 oz/acre in 20-30 gallons water) provides quick correction, best applied at the 4-6 leaf stage before deficiency symptoms appear. Soil application (4-8 oz/acre broadcast or 2-4 oz/acre banded) is less efficient but provides long-term correction lasting 3-5 years. As an alternative, liming acidic soils increases native Mo availability without direct application. Important: never exceed recommended rates as molybdenum in forage above 5-10 ppm can cause copper deficiency (molybdenosis) in grazing livestock.

Molybdenum has critical interactions with several nutrients. It's essential for nitrogen metabolism — without it, plants can't convert nitrate to amino acids even when nitrogen is abundant. For a deeper understanding, see What's the Function of Nitrogen (N) in Plants? High phosphorus can increase Mo uptake, while Mo deficiency reduces phosphorus utilization. Sulfate and molybdate compete for uptake, so high sulfur can induce Mo deficiency. There's an antagonistic relationship with copper — high Mo can induce copper deficiency in animals (molybdenosis). And critically, each unit increase in soil pH increases Mo availability approximately 100-fold.

Sodium molybdate is generally approved for use in organic farming systems, but always verify with your specific certifying agency. Key considerations: it's typically allowed only when soil or tissue tests confirm deficiency, you must document deficiency and application rates, you cannot exceed rates necessary to correct the deficiency, and seed treatment is often the preferred method in organic systems. The tiny amounts needed (often less than 0.1 lb/acre of actual Mo) make it both environmentally sustainable and cost-effective for organic production.

Molybdenum deficiency is a common but often overlooked cause of poor nitrogen fixation in legumes. The nitrogenase enzyme requires Mo as a cofactor to function, so without adequate Mo, even well-inoculated legumes cannot fix atmospheric nitrogen effectively. Check nodule color — healthy active nodules are pink or red inside (from leghemoglobin), while Mo-deficient ones turn green or white. Seed treatment with 1-2 oz sodium molybdate per 100 lbs seed usually corrects this for the entire season. Also check soil pH, as acidic conditions below pH 6.0 severely limit Mo availability. For more on how proper nutrition affects plant performance, see Best Nitrogen Fertilizer for Your Plants.

Duration depends on the application method. Seed treatment provides season-long correction for annual crops. Foliar applications correct the current season but may need repeating in subsequent years. Soil applications (broadcast or banded) generally last 3-5 years before reapplication is needed, making them the best long-term investment for chronic deficiency situations. In hydroponic systems, maintain continuous low levels of 0.02-0.05 ppm Mo with monthly monitoring.

Yes, sodium molybdate is compatible with most fertilizers and can be tank-mixed for convenience. It works well combined with nitrogen fertilizers, micronutrient blends, and foliar sprays. Avoid mixing with highly acidic solutions as this can reduce Mo availability. When band-applying with starter fertilizer, placement efficiency is significantly increased compared to broadcast. Always jar-test new combinations before large-scale mixing to check for precipitation or compatibility issues. For guidance on recognizing when nutrients interact poorly, see Fertilizer Toxicity vs Nutrient Deficiency.

• All products manufactured in California, USA
• Tested by independent third-party laboratories for quality assurance
• Registered with the California Department of Food and Agriculture (CDFA)
• Rigorously tested for heavy metal content

If you're not completely satisfied, we offer a 90-day money-back guarantee. Simply return the unused portion in its original packaging, and we'll process a full refund. No questions asked.

• Precise nutrient formulation to reduce environmental runoff
• Supports biological nitrogen fixation — reducing synthetic nitrogen use
• Trace-quantity applications minimize environmental footprint

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