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Metrop MR1 in the 1-liter size provides serious indoor cultivators with an economical, long-lasting nutrition solution for the critical growth and early flowering phases. This ultra-concentrated NPK fertilizer delivers exceptional value through its 10-40-20 formulation, designed specifically for the demanding requirements of high-performance growing operations. The larger volume makes it ideal for commercial growers, dedicated hobbyists, and anyone managing multiple growing cycles throughout the year.
The sophisticated nutrient profile in Metrop MR1 represents years of research into optimal plant nutrition during transitional growth phases. This carefully balanced formula addresses the complex nutritional demands plants face when shifting from vegetative growth into reproductive development.
The 1-liter container provides excellent value for regular users, offering enough concentrated nutrition for numerous growing cycles. Professional growers appreciate the consistency this size provides - no variation between batches when using the same container throughout a complete growing season.
Apply at 40-75ml per 100 liters of water, adjusting concentration based on specific plant requirements, environmental conditions, and growth stage progression. The wide dosing range accommodates everything from light-feeding varieties to heavy-feeding cultivars demanding maximum nutrition. Start conservative with new strains and gradually increase concentration while monitoring plant response.
In recirculating hydroponic systems, add MR1 to balanced water after pH adjustment but before final EC measurement. The concentrated nature means precise measuring is crucial - invest in quality measuring tools for consistent results. For soil applications, ensure adequate drainage to prevent nutrient salt accumulation in the root zone.
Maximize your investment in Metrop MR1 by implementing a comprehensive feeding strategy. Combine with Metrop Calgreen to address calcium and magnesium requirements often depleted in high-intensity growing environments. Add Metrop Amino Root during the first weeks of application to supercharge root development and nutrient uptake capacity.
Professional growers often use MR1 as their primary nutrition source for the first 2-3 weeks of flowering, then gradually transition to bloom-specific fertilizers with higher potassium ratios. This approach ensures plants receive optimal nutrition during the critical flowering transition period without disrupting their natural development patterns.
The 1-liter size requires proper storage management to maintain potency throughout its extended use period. Store in original containers at stable temperatures, protected from freezing and excessive heat. The concentrated formulation remains stable for extended periods when properly stored, making the larger size an economical choice for regular users.
Shake thoroughly before each use to ensure proper nutrient distribution throughout the suspension. The lack of artificial colorings and fillers means the solution may appear less vibrant than other fertilizers, but this purity translates to superior plant performance and consistent EC management.
| Nutrient | Percentage | Specific Form | Function |
|---|---|---|---|
| Total Nitrogen | 10% | 4.65% Nitrate, 5.35% Ammonium | Vegetative growth, chlorophyll production |
| Phosphorus | 40% | Water soluble orthophosphate | Root development, flowering initiation |
| Potassium | 20% | Water soluble potash | Structural strength, nutrient transport |
| Magnesium | 1.5% | Water soluble | Chlorophyll center, enzyme activation |
| Iron | 0.17% | EDTA chelated | Chlorophyll synthesis, electron transport |
| Manganese | 0.085% | EDTA chelated | Enzyme activation, nitrogen metabolism |
| Copper | 0.085% | EDTA chelated | Enzyme systems, lignin production |
| Zinc | 0.085% | EDTA chelated | Growth regulators, protein synthesis |
| Boron | 0.035% | Water soluble borate | Cell wall formation, calcium mobility |
| Cobalt | 0.0012% | EDTA chelated | Nitrogen fixation, B12 synthesis |
| Molybdenum | 0.0012% | Water soluble molybdate | Nitrate reduction, nitrogen metabolism |
Expand your hydroponic knowledge with our expert guides on selecting optimal fertilizers and hydroponic fundamentals for beginners. Browse our complete selection of hydroponic fertilizers and substrates to create your perfect growing system.
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