NPK Fertilizer 15-15-15 - Nitrate & Sulfate-Based Granular Fertilizer
A, Key Product Features:
- NPK Ratio: 15-15-15
- Nitrogen Content: 15%
- Nitrate Nitrogen: ~6%
- Phosphorus (P2O5): 15%
- Potassium (K2O): 15%
- Secondary Nutrients: Sulfur (S)
- Granule Size: 2-4 mm
- Formulation Type: Granular
- Application Type: Suitable for broadcasting and fertigation
B, Why Choose NPK 15-15-15 Fertilizer?
NPK 15-15-15 offers a balanced nutrient profile that provides plants with all essential macronutrients in equal proportions. It is designed to meet the needs of various crops throughout their growth cycle. Here's why it stands out:
-
Balanced Nutrition
With equal percentages of nitrogen, phosphorus, and potassium, it promotes strong root development, healthy foliage, and excellent fruit production.
-
Nitrate Nitrogen for Fast Growth
The 6% nitrate nitrogen is immediately available to plants, encouraging quick vegetative growth and enhancing early-stage development.
-
Sulfate of Potash (SOP) for Plant Health
SOP is chloride-free, which is especially beneficial for chloride-sensitive crops. It also promotes photosynthesis, increases stress tolerance, and improves fruit quality.
-
High-Quality Granules
The fertilizer is manufactured using high tower granulation, ensuring uniform granule size and easy application. This minimizes nutrient loss and ensures better soil nutrient uptake.
C, Applications for Various Crops
NPK 15-15-15 is versatile and can be used across a range of crops. Below are some common crops and the recommended usage:
-
Vegetables: Tomatoes, Peppers, Cucumbers
Application Rate: 250-350 kg/ha
Best Time to Apply:
- Before planting or during early vegetative growth to support lush leaf growth and strong stems.
- Apply again during early fruiting to boost fruit development.
-
Field Crops: Corn, Wheat, Rice
Application Rate: 200-300 kg/ha
Best Time to Apply:
- At planting or early growth stages.
- Apply in split applications to provide steady nutrient supply.
-
Fruit Trees: Apples, Citrus, Grapes
Application Rate: 400-500 kg/ha
Best Time to Apply:
- In early spring for strong new growth.
- Apply during flowering for improved fruit set and quality.
D, Why High-Quality Granules Matter
NPK 15-15-15 is produced using the high tower granulation process, which offers significant advantages over traditional fertilizers:
- Uniform Nutrient Distribution: Granules are evenly sized, which ensures consistent nutrient release and even application.
- Durability: The granules are resistant to breaking or crumbling during transport, making them easier to apply and store.
- Controlled Release: The controlled release of nutrients minimizes nutrient loss through leaching, ensuring that the nutrients are available when plants need them most.
E, How to Apply for Maximum Results:
- Broadcasting: Apply evenly across the soil surface and lightly incorporate the granules into the soil with irrigation or a light tilling to ensure proper nutrient uptake.
- Fertigation: Can also be dissolved in water for use in drip irrigation systems, making it ideal for more precise nutrient delivery.
- Irrigation: After application, thoroughly water the area to dissolve the nutrients and facilitate their absorption into the soil.
F, Additional Tips for Better Decision Making:
- Soil Testing: Regular soil tests help you determine the existing nutrient levels, enabling you to adjust application rates for the best results.
- Split Application: For crops with high nutrient demands (like corn and fruit trees), consider applying the fertilizer in split doses to provide a consistent nutrient supply throughout the growing season.
- Optimal Growth Stages: Apply the fertilizer during key growth stages-such as planting, early vegetative growth, and flowering-to maximize growth and yield potential.
Packing & Delivery
Each order is meticulously packaged in knitting bags lined with protective plastic. Choose from sizes of 25kg, 40kg, or 50kg per bag, or customize according to your specific requirements to ensure the perfect fit for your needs.
Company Profile

Founded in the year 2000, Tianjin Chemical Import and Export Co., Ltd. shines as a beacon of excellence in international trade, specializing in the intricate world of chemical products, encompassing raw materials and food additives. Our expansive reach extends to vibrant markets across Europe, the United States, Mexico, and beyond. Structured with precision, we boast departments of sales, finance, procurement, operations, and the guiding hand of the general manager, all operating under the empowering principle of 'people-oriented.
Embracing a 'humanization' philosophy internally, our external business ethos champions 'customer first, mutual benefit, and win-win' strategies. Guided by the principles of efficiency, innovation, and unwavering resolve, we nurture a culture of execution and shared success. Constantly evolving, we strengthen our talent management through balanced incentives and constraints, forging an elite management team poised for greatness.
With each passing day, our journey extends further. Our dedication to international markets sees our products reaching esteemed destinations such as the United States, the Netherlands, Poland, Canada, the United Kingdom, Italy, and Colombia. Embracing the art of customization, we synthesize a variety of organic compounds, inviting both new and loyal clients to engage in fruitful collaborations. We eagerly anticipate the opportunity to work alongside you!
FAQ
1. DO YOU ACCEPT SAMPLE ORDER?
Absolutely! We conduct rigorous sample testing prior to mass production. Once samples receive your approval, we commence large-scale production. Throughout the process, we maintain a strict 100% inspection protocol and perform random checks before final packing.
2. IS THERE A DISCOUNT?
Indeed, enjoy varying discounts tailored to your order's quantity.
3. HOW TO CONFIRM THE PRODUCT QUALITY BEFORE PLACING ORDERS?