24-8-16 Controlled-Release Fertilizer

NPK 24-8-16 Controlled-Release Fertilizer
24-8-16 Controlled-Release Fertilizer
Product Name: | NPK 24-8-16 Slow-release fertilizer |
Category: | Controlled-Release Fertilizer – Products |
Nutrient Composition: | Total N – 24%, P₂O₅ – 8%, K₂O – 16% |
Coating Technology: | Polymer-coated granules (single or multi-layer) |
Release Duration: | 60–120 days (temperature-dependent) |
Granule Size: | 2.0–4.0 mm (customizable) |
Secondary Nutrients: | Sulfur (2–5%), Micronutrients (Fe, Mn, Zn, Cu, B) available on request |
Payment Terms: | T/T, L/C, cash(USD, EUR, RMB) |
Certificate: | ISO 22241-1, ISO 9001 standard. |

24% Nitrogen
Total nitrogen 24% (N) of which 7% nitrate nitrogen and 17% ammonium nitrogen (optional)

8% Phosphorus
Total Phosphorus 8% (P) Diammonium phosphate 6%, monoammonium phosphate 2%, (optional)

16% Potassium
Total Potassium 16% (K) Potassium Sulfate / Potassium Chloride (optional, prices vary)

Other Elements
Sulfur (5–9%), Micronutrients (Fe, Mn, Zn, Cu, B) available on request ...
24-8-16 Controlled-Release Fertilizer Description
Risso 24‑8‑16 Controlled‑Release Fertilizer is a high-performance, nutrient-balanced solution designed to meet the needs of professional growers, landscape contractors, and serious hobbyists. With its precise 24% nitrogen, 8% phosphorus, and 16% potassium ratio, this fertilizer promotes vigorous vegetative growth, root development, and overall plant resilience across a wide range of crops and ornamental species.
Key Benefits of Risso 24-8-16 Controlled-Release Fertilizer
Balanced NPK Ratio (24-8-16)
Optimized for plant growth stages, supporting lush foliage, strong roots, and vibrant flowering or fruiting.Controlled Nutrient Release
Features advanced polymer-coated granules or chemically stabilized formulations for slow, steady nutrient release over 8–16 weeks, minimizing leaching and volatilization losses.Micronutrient Fortified
Includes a full spectrum of chelated micronutrients (Fe, Mn, Zn, Cu, B, Mo), plus magnesium and sulfur for improved chlorophyll production and metabolic balance.High Solubility & Compatibility
Ideal for foliar feeding, fertigation systems, or direct granular application in container media, nursery production, or landscape beds.Reduced Environmental Impact
Precision delivery reduces nitrogen runoff and promotes sustainable agriculture and horticulture practices.
Guaranteed Analysis
Nutrient Component | Typical Content |
---|---|
Total Nitrogen (N) | 24.0% (Urea, Ammoniacal, Nitrate forms) |
Available Phosphate (P₂O₅) | 8.0% |
Soluble Potash (K₂O) | 16.0% |
Sulfur (S) | ~4.7% (as sulfate) |
Magnesium (Mg) | ~1.0% |
Micronutrients | Fe, Mn, Zn, Cu, B, Mo (chelated forms) |
- Exact composition may vary by formulation and coating technology.
Recommended Applications
Ideal for:
Container-grown ornamentals and bedding plants
Foliage crops and interior tropicals
Vegetables, fruits, and nursery stock
Hanging baskets and professional landscaping
Application Methods:
Granular Broadcast or Topdressing: Apply 3–6 g per liter of substrate or as per crop needs.
Fertigation / Liquid Feed: Mix 1 tsp (approx. 5 g) per gallon for 250–300 ppm N. Suitable for 1:100 to 1:300 injector ratios.
Frequency: Every 8–12 weeks depending on crop cycle and growth conditions.
Packaging & Customization
Standard Pack Sizes: 9.5kg, 25 kg PE-lined woven bags, 500 kg jumbo bags
Custom Services: OEM/ODM labeling, tailored NPK ratios, coating duration, micronutrient enrichment, and color coding for granules
Certifications: ISO 9001, ISO 14001, REACH compliance; RoHS and heavy metal limits upon request
Shelf Life: 2 years under dry, ambient storage conditions

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Why Choose Risso® 24-8-16 CRF?
Globally trusted NPK ratio used in professional horticulture and commercial greenhouse operations.
Extended-release performance lowers labor costs and feeding frequency.
Water-soluble and low EC—safe for sensitive roots and high-value crops.
Formulated for precision—stable in various media including coco peat, rockwool, perlite, or peat moss.
Eco-friendly nutrition management, reducing nutrient losses and runoff.