PuurNitro – Organic Nitrogen Supplement (8-0-0)

Organic Nitrogen Supplement (8-0-0)

Vibrant greens. Explosive growth. Clean, sustainable power.

PuurNitro is your go-to organic nitrogen source for driving strong vegetative growth, lush canopy development, and vibrant plant color. Designed as part of the PuurOrganic Line by Cronk Nutrients, this highly concentrated 8-0-0 formula delivers clean, plant-available nitrogen without the risks, residues, or guesswork of traditional fertilizers.

What makes PuurNitro different? It’s crafted from soy meal left over after oil extraction—a rich, protein-based agricultural byproduct that’s often discarded or repurposed as livestock feed. Instead of letting it go to waste, we isolate and refine the nitrogen through a biological process that creates a highly bioavailable liquid form your plants can absorb immediately. The result is a sustainable, sediment-free fertilizer that fuels explosive growth from seedling to pre-flower.

✅ Why Growers Love It:

• Supercharges vegetative growth with clean organic nitrogen

• Corrects deficiencies without burning or overfeeding

• Sediment-free & fully soluble – ideal for drip systems, DWC, coco, or foliar spray

• Safe for beginners, powerful enough for pros

• Upcycled & eco-conscious – made from materials that would otherwise go to waste

• OMRI Certified

Whether you’re greening up yellowing leaves, building biomass during veg, or simply maintaining healthy foliage, PuurNitro gives you the control to deliver just the nitrogen your plants need—nothing more, nothing less.

 Part of the Complete PuurOrganic Feed Program

PuurNitro is a core component of the Cronk Nutrients PuurOrganic Feed Program and is designed to work best when paired with the full lineup:

• PuurPhos – for strong roots and explosive flowering

• PuurK – for bloom density and late-stage resilience

• PuurBalance – for full-spectrum micros and enhanced nutrient uptake

• PuurCalMag – to prevent deficiencies and support structural integrity

Together, they create a complete, flexible, and eco-conscious nutrient system for all stages of growth.

🌍 Sustainable, Inside and Out

Like every product in the PuurOrganic Line, PuurNitro was developed with sustainability in mind. By turning agricultural waste into high-performance fertilizer, we’re helping growers reduce their environmental impact without sacrificing yield or quality.

Power your plants with clean, organic nitrogen—no fluff, no filler, just results.

Only from Cronk Nutrients.

Safe for All Plant Types & Grow Mediums

At Cronk Nutrients, we pride ourselves on creating fertilizers that are compatible with a wide range of plants and growing mediums.

🌎 Compatibility
PuurNitro is fully compatible with all growing mediums and systems, including:
✔️ Soil
✔️ Soilless mixes (Pro-Mix HP, peat blends)
✔️ Coco coir (Pro-Mix CX, buffered coco)
✔️ Deep Water Culture (DWC)
✔️ Drip irrigation and automated systems
✔️ Living soil and organic no-till beds
✔️ Foliar spray applications

Whether you’re hand-watering pots or running a fully automated commercial setup, PuurNitro integrates seamlessly with your feed routine thanks to its clean, sediment-free formula.

Great for all plant types, including:
🌿 Leafy greens, vegetables, and herbs
🌸 Flowering ornamentals and greenhouse crops
🌱 Potted plants and houseplants
🌾 Turf, lawn, and landscape
🌳 Fruiting trees, vines, and shrubs

If it grows, PuurNitro can help it grow stronger.

Directions

SHAKE BEFORE USE

Dilute the suggested amount as per the chart on the back of the bottle into at least 1 litre of water. Apply once per week or every other watering. Safe to use in conjunction with any other nutrients. Use for the majority of the plant's life.

🌱 How to Use:
Hydroponic, Coco, and Soilless Mediums:
Vegetative / General Feeding: 1.25 mL per L or 5 mL per gallon. Apply weekly or with every feeding.

Flowering Stage & Heavy Fruiting: 2.5 mL per L or 10 mL per gallon. Apply weekly or with every feeding.

Soil Grows:
Use 1.25–2.5 mL per 1 L of water or 5–10 mL per gallon, depending on plant size, age, and overall feeding schedule. Apply 1–2 times per week, depending on how often you water and your plant’s nutrient demand.

Foliar Spray (Vegetative):
Use 15–30 mL per 1 L or 60–120 mL per gallon of water. Apply every 7–14 days as needed to support leaf development and early vigor.

Potted Plants & Greenhouse Crops:
Use 10–20 mL per 1 L or 40–80 mL per gallon. Spray to runoff every 7–14 days as needed.

Part of the Complete PuurOrganic Feed Program
PuurNitro is a core component of the Cronk Nutrients PuurOrganic Feed Program and is designed to work best when paired with the full lineup:

• PuurPhos – for strong roots and explosive flowering.
• PuurK – for bloom density and late-stage resilience.
• PuurBalance – for full-spectrum micros and enhanced nutrient uptake.
• PuurCalMag – to prevent deficiencies and support structural integrity.

Together, they create a complete, flexible, and eco-conscious nutrient system for all stages of growth.

Conversions: 1 Teaspoon = 5mL | 1 Tablespoon = 15 mL | 1 Ounce = 30mL | 1 Cup = 240 mL

Guaranteed Analysis

8-0-0

Total Nitrogen (N)........ 8.0%

8.0% Water Soluble Nitrogen

Derived From: Vegetable Protein Hydrolysate

Safety Data Sheet

CLICK HERE for a copy of Cronk Nutrients PuurNitro 8-0-0 SDS

Shipping

Cronk Nutrients' online store ships all over Canada and the United States from Canada & the United States. If your country isn't a standard option, please contact us and we can get a shipping quote. We offer free shipping on any order in North America over $125* We ship via UPS, Purolator, FedEx, Canada Post or from our inventory at either Amazon.ca or Amazon.com. 

All orders are processed within 1 business day. 

Your order will be marked as fulfilled from the moment it’s been boxed up in the warehouse awaiting for the courier to pick it up. Once your order has been fulfilled, you will receive an email with your tracking number. Your tracking details will appear once the courier has processed the package.  CLICK HERE for more information about our shipping policy.