Greenway Biotech, Inc. Brand Magnesium Nitrate and Magnesium Oxide Formula Fertilizer for Hydroponics and Soil (11-0-0) - 100% Water Soluble Promotes Plant Growth and Soil Health (5 Pounds)

★★★★★ 4.7 17 reviews

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Management number 220047195 Release Date 2026/05/03 List Price $14.00 Model Number 220047195
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MAGNESIUM NITRATE FERTILIZER 11-0-0 – DUAL NUTRIENT POWER FOR GREENER PLANTS Magnesium sits at the heart of every chlorophyll molecule. Without adequate magnesium, your plants simply cannot perform photosynthesis—no matter how much light or water they receive. Greenway Biotech's Magnesium Nitrate delivers 9.6% highly available magnesium PLUS 11% nitrate nitrogen, giving your plants two essential nutrients in one efficient application. WHO THIS IS FOR: Growers seeing interveinal chlorosis (yellowing between leaf veins) on older leaves Hydroponic and fertigation users needing a Tank A compatible magnesium source Gardeners with hard water (high calcium) causing magnesium lockout Anyone wanting to boost vegetative growth with combined N and Mg Commercial greenhouse operators and serious hobbyists WHO THIS IS NOT FOR: Growers in late flowering stage who want to reduce nitrogen (use Epsom Salt instead) Those needing sulfur along with magnesium (Epsom Salt provides Mg + S) Applications requiring slow-release fertilizer APPLICATION RATES: Soil Drench: 1-2 tsp per gallon, every 2-4 weeks Foliar Spray: 1 tsp per gallon, every 7-14 days (spray early morning) Hydroponics: Target 50-80 ppm Mg (0.5-0.8 tsp per gallon) Fertigation: 2-4 lbs per acre weekly WHY NITRATE NITROGEN MATTERS: The nitrogen in this product is 100% nitrate form—immediately available to plants without soil microbial conversion. This means faster results, better cold-soil uptake, and stable pH compared to ammonium-based nitrogen sources.

  • DUAL-NUTRIENT FORMULA FOR VIBRANT GREEN GROWTH – Our Magnesium Nitrate delivers both 11% nitrogen AND 9.6% magnesium in one application. Magnesium is the central atom in every chlorophyll molecule—without it, plants cannot photosynthesize. Many growers see visible improvement in leaf color within 1-2 weeks of soil application, or 3-7 days with foliar spray.
  • 100% WATER SOLUBLE WITH ZERO RESIDUE – Dissolves completely in warm or cold water for immediate plant availability. Use as a soil drench (1-2 tsp per gallon), foliar spray (1 tsp per gallon), or add to fertigation systems. The nitrate nitrogen form is immediately plant-available without requiring soil microbial conversion.
  • CORRECTS INTERVEINAL CHLOROSIS FAST – If your older leaves show yellowing between the veins while veins stay green, that's classic magnesium deficiency. This formula provides fast-acting magnesium to restore chlorophyll production. Nitrogen deficiency (uniform pale leaves) is also corrected simultaneously.
  • pH NEUTRAL AND TANK A COMPATIBLE – Unlike some magnesium sources that acidify your growing medium, Magnesium Nitrate won't significantly alter soil or solution pH. Safe to mix with Calcium Nitrate in concentrated stock solutions (Tank A). Keep separate from phosphate fertilizers in concentrates.
  • IDEAL FOR VEGETATIVE GROWTH AND EARLY FLOWERING – Use Magnesium Nitrate when plants need both nitrogen and magnesium—typically seedling through mid-bloom stages. For late flowering when additional nitrogen isn't desired, switch to Epsom Salt (Magnesium Sulfate) to provide magnesium with sulfur instead.
  • WORKS IN COLD SOIL CONDITIONS – Nitrate nitrogen uptakes readily even in cool soil temperatures, unlike ammonium nitrogen which requires warmer conditions for microbial conversion. This makes Magnesium Nitrate ideal for early spring applications when soil is still cool.
  • PROFESSIONAL GRADE PURITY – The same quality trusted by commercial greenhouses and agricultural operations. Every batch is tested for heavy metals with results consistently well below required limits. CDFA registered and packaged at our California facility.
  • VERSATILE APPLICATION METHODS – Apply as soil drench, foliar spray, through drip irrigation, or in hydroponic reservoirs. For hydroponics, target 50-80 ppm magnesium for most crops. Remember: this product contributes approximately 1.15 ppm nitrogen for every 1 ppm magnesium added.
  • BALANCE YOUR CALCIUM TO MAGNESIUM RATIO – Hard water often has Ca:Mg ratios of 5:1 or higher, causing magnesium lockout even when Mg is present in the soil. Use Magnesium Nitrate to bring your ratio down to the optimal 3:1 to 4:1 range for most crops.
  • TRUSTED FAMILY BUSINESS SINCE 1989 – Greenway Biotech has been providing premium fertilizers to home gardeners and commercial growers for over 35 years. Lab tested, CDFA registered, and backed by real grower support.
UPC 018227121156
Coverage Full
Item Form Granules
Brand Name Greenway Biotech, Inc.
Unit Count 80.0 Ounce
Item Weight 5 Pounds
Part Number Parent_Magnesium
Manufacturer Greenway Biotech, Inc.
Mixing Ratio 1:1.6
Target Species plants
Number of Items 1
Specific Uses For Product Hydroponics
Global Trade Identification Number 00018227121156

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