Description
1. Product Overview
NPK 19-19-19 (water-soluble) is a balanced, fully soluble complex fertilizer containing equal proportions of nitrogen, phosphorus, and potassium. It is primarily used in drip irrigation, sprinkler systems, and foliar spraying for high-value row crops, horticulture, and greenhouse production. The key value proposition lies in its 100% solubility, rapid nutrient availability, and chlorine-free formulation, which prevent emitter clogging and leaf burn. Strategically, it enables precision agriculture at scale, allowing growers to achieve higher nutrient use efficiency and lower environmental impact than conventional granular blends.
2. Key Specifications & Technical Characteristics
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Chemical composition: 19% N (Nitrogen), 19% P₂O₅ (Phosphate), 19% K₂O (Potash) – fully water-soluble salts
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Purity grade: Technical grade; >99.5% solubility; low heavy metals (meets EU & US fertilizer standards)
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Physical characteristics:
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Fine crystalline powder (100% passing through 1mm sieve)
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Color: White to off-white
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Bulk density: ~0.9–1.0 g/cm³
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pH (1% solution): 4.5–6.0
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Electrical conductivity (1 g/L): ~1.2 mS/cm
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Packaging options: 25 kg laminated bags, 500 kg big bags, or 1,250 kg Jumbo sacks with inner moisture barrier
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Shelf life: 36 months in original unopened packaging, stored in dry, ventilated conditions (<35°C, <70% RH)
3. Core Industrial Applications
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Primary industries: Large-scale row crops (corn, wheat, potatoes), protected horticulture (tomatoes, peppers, cucumbers), fruit orchards (citrus, apples, grapes), and turf/ornamentals.
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Operational use cases:
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Fertigation in drip or pivot systems for continuous feeding during vegetative growth
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Foliar application to correct mid-season deficiencies without soil fixation
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Starter solution for transplant production in greenhouses and nurseries
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Performance advantage: High-purity raw materials prevent nozzle or dripper blockage, reducing maintenance downtime. The balanced NPK ratio supports early-season vigor and root development, outperforming physical blends that separate in solution tanks.
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Efficiency gain: 95%+ nutrient utilization rate vs. 60–70% for conventional granular, lowering total applied tonnage per hectare by 15–20%.
4. Competitive Advantages
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Quality consistency: ISO 9001:2025 certified production with batch-to-batch ICP-OES testing; each shipment includes a Certificate of Analysis.
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Supply reliability: Redundant production lines in three regions (Asia, MEA, LATAM) with 50,000 MT annual capacity and safety stock buffers.
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Logistics capability: In-house warehousing at 8 strategic ports; lead time 10–14 days FOB to major global hubs.
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Price competitiveness: Vertically integrated raw material sourcing (nitrate, phosphate rock, potash) removes intermediary margins; tiered pricing for contract volumes >500 MT/year.
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Sustainability & compliance: Zero cadmium, arsenic, or lead; OMRI-listed version available; biodegradable anti-caking agent.
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Technical support: Digital agronomy platform + 24/7 supply chain dashboard + custom blending options (NPK ratios, micronutrient fortification).
5. Commercial & Supply Information
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Minimum order quantity (MOQ): 20 MT (full container load) – BULK 20MT
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Loading capacity: 20 MT per 20-foot dry container (25 kg bags palletized) or 25 MT per 20-foot container (big bags/jumbo sacks)








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