PuurNitro 8-0-0: Organic Nitrogen for Maximum Vegetative Growth

PuurNitro 8-0-0 is an OMRI-certified organic nitrogen fertilizer that delivers fast-acting nitrogen from enzymatically hydrolyzed soy protein. Unlike traditional organic nitrogen sources that require weeks of microbial breakdown, PuurNitro provides immediately available nitrogen that plants absorb within hours—achieving synthetic-like response times while maintaining full organic certification.

The Science Behind PuurNitro

Nitrogen is the most critical nutrient during vegetative growth. It's a component of every amino acid, making it essential for protein synthesis, enzyme production, and chlorophyll formation. Plants deficient in nitrogen show stunted growth, yellowing leaves (chlorosis), and reduced photosynthetic capacity.

Traditional organic nitrogen sources present a timing challenge. Blood meal, feather meal, fish meal, and other common inputs contain nitrogen locked in complex proteins that soil microbes must decompose before plants can access. This mineralization process takes 2-8 weeks depending on temperature and microbial activity—far too slow for responsive feeding.

PuurNitro solves this problem through enzymatic hydrolysis. The soy protein is pre-digested using food-grade enzymes that break proteins into:

• Free amino acids – Plants absorb these directly through roots and use them for protein synthesis without additional processing
• Peptides – Short amino acid chains that convert quickly to plant-available forms
• Ammonium nitrogen – The preferred nitrogen form that plants uptake most efficiently

This pre-processing delivers the rapid response organic growers need while avoiding synthetic inputs. The nitrogen becomes plant-available within hours rather than weeks, enabling precise feeding adjustments throughout the growth cycle.

Sustainability: Upcycled Soy Protein

PuurNitro transforms food industry byproducts into premium fertilizer. The soy protein comes from food-grade processing operations where protein-rich fractions would otherwise become waste or low-value animal feed. By upcycling this material, PuurNitro:

• Reduces agricultural waste streams
• Creates value from existing production
• Avoids the environmental impact of producing virgin nitrogen sources
• Maintains a closed-loop approach to plant nutrition

Application Rates and Timing

Weekly Application Rates

Timing Principles

• Increase nitrogen during vegetative growth – Plants building leaf mass need abundant nitrogen for amino acid synthesis
• Reduce at flowering transition – Excess nitrogen during bloom promotes unwanted vegetative growth
• Minimal nitrogen late flower – Reduces green, harsh flavors and improves final product quality

Mixing Instructions

Mixing Order in PuurOrganics System

1. Start with water at room temperature
2. Add Armadillo Armour (if using silica—always first)
3. Add PuurNitro at appropriate rate for growth stage
4. Add PuurPhos at appropriate rate
5. Add PuurK at appropriate rate
6. Add PuurCalMag
7. Add PuurBalance for micronutrient support
8. Add Sticky Bandit (if using)
9. Stir thoroughly and adjust pH to target range (6.0-6.5 soil, 5.8-6.2 coco/hydro)
10. Add Monkey Juice (if using—always last, after pH adjustment)

Important Mixing Notes

• PuurNitro dissolves completely—no straining or settling required
• Compatible with all irrigation systems including drip lines
• Mix fresh batches for best results; use within 24-48 hours
• Mild earthy aroma is normal and indicates active organic compounds

Plants and Growing Systems

Crops That Benefit from PuurNitro

• Heavy feeders: Tomatoes, peppers, cannabis, corn, squash
• Leafy greens: Lettuce, spinach, kale, herbs (benefit from high nitrogen throughout)
• Fruiting plants: Cucumbers, melons, berries (reduce nitrogen when fruiting begins)
• Ornamentals: Roses, tropical plants, houseplants

Growing System Compatibility

• Soil: Excellent. Amino acids feed soil microbes while providing plant nutrition
• Coco coir: Excellent. Fully soluble formula works perfectly in coco
• Hydroponics: Compatible. One of few organic nitrogen sources suitable for hydro systems
• Living soil: Excellent. Amino acids support microbial populations

Compatibility

Compatible Products

• All PuurOrganics products (PuurPhos, PuurK, PuurCalMag, PuurBalance)
• Cronk additives: Sticky Bandit, Monkey Juice, Bud Booster, Armadillo Armour
• Organic pest management products
• Compost teas and microbial inoculants

NOT Compatible

• Cronk Classic Line (Micro, Grow, Bloom) – Different nutrient system
• Cronk Bonnie & Clyde – Different nutrient system
• Other synthetic base nutrients – Use PuurOrganics exclusively for organic grows

Signs of Nitrogen Deficiency

• Yellowing of older/lower leaves first (nitrogen is mobile, plant moves it to new growth)
• Stunted growth and small leaves
• Pale green color overall
• Weak stems and reduced vigor
• Premature leaf drop

Response: Increase PuurNitro rate by 1-2 mL/gallon. For severe deficiency, apply foliar spray at 2 mL/gallon for faster correction.

Signs of Nitrogen Excess

• Dark green, almost blue-green leaves
• Excessive vegetative growth during flowering
• Weak, stretched stems
• "Clawing" – leaf tips curling downward
• Delayed flowering or reduced flower quality

Response: Reduce PuurNitro immediately. Flush with plain water if severe. Resume at lower rate once symptoms improve.

Frequently Asked Questions

Can I use PuurNitro with Cronk Classic Line nutrients?

No. PuurOrganics products are NOT compatible with Classic Line or Bonnie & Clyde nutrients. PuurNitro is designed exclusively for use within the PuurOrganics system to maintain organic certification and optimal performance.

How much PuurNitro should I use during flowering?

Reduce PuurNitro during flowering to 2-3 mL per gallon. Plants need less nitrogen during bloom, and excess nitrogen can interfere with flower development. Increase PuurPhos and PuurK instead as plants transition to flowering.

Is PuurNitro suitable for hydroponics?

Yes. PuurNitro is fully water-soluble with no sediment, making it one of the few organic nitrogen sources compatible with hydroponic systems. It dissolves completely and won't clog drip lines or emitters.

What makes PuurNitro different from other organic nitrogen sources?

Most organic nitrogen sources (blood meal, feather meal, fish meal) require weeks of microbial breakdown before plants can absorb nutrients. PuurNitro uses enzymatically hydrolyzed soy protein that's already broken into plant-available amino acids and ammonium, providing rapid uptake similar to synthetic fertilizers while remaining 100% organic.

Does PuurNitro smell?

PuurNitro has a mild, earthy aroma typical of organic fertilizers. It's significantly less pungent than fish-based products. The smell dissipates quickly after application.

Storage and Handling

• Store in cool, dark location away from direct sunlight
• Keep bottle sealed when not in use
• Shelf life: 2 years unopened, 1 year after opening
• Shake well before each use
• Safe for use around children and pets when used as directed

Need Help?

Our grow support team is here to help you get the best results with PuurNitro and the complete PuurOrganics system. Contact us at [email protected] or visit our Grower's Resource Center for feed charts and growing guides.