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Controlled-Release Fertilizer

| Urea Nitrogen

Polymer Coated Urea

Polymer Coated Urea

Sulfur Coated Urea

Sulfur Coated Urea

Polymer Coated Urea

270 Day PCU Urea

Polymer Coated Urea

180 Day PCU Urea

| Controlled Release NPK Fertilizer

60-Day Controlled-Release

60-Day Controlled-Release

90-Day Controlled-Release

90-Day Controlled-Release

120-Day Controlled-Release

120-Day Controlled-Release

180-Day Controlled-Release

180-Day Controlled-Release

| Controlled-Release Blended Fertilizers

60-Day Controlled-Release

60-Day Controlled-Release

90-Day Controlled-Release

90-Day Controlled-Release

120-Day Controlled-Release

120-Day Controlled-Release

180-Day Controlled-Release

180-Day Controlled-Release

Welcome to Our Controlled-Release Fertilizer Range

Risso Controlled-Release Fertilizers are designed to provide a gradual and controlled supply of nutrients over an extended period, helping improve nutrient availability and reduce nutrient losses. By controlling the release rate of nutrients, these fertilizers can better match crop nutrient demand throughout the growing season.

Our controlled-release fertilizer range includes controlled-release urea, controlled-release NPK fertilizers, and controlled-release blended fertilizers, with different nutrient formulations and release periods for various crops, soils, and application conditions.

Risso also offers polymer-coated urea (PCU) and other coated fertilizer solutions designed to provide controlled nutrient release. Release periods can be tailored to crop requirements and application programs.

👉 Click to explore

  • Risso’s Controlled-Release Fertilizer Products
  • Controlled-Release Fertilizer Key Features
  • Benefits of Controlled-Release Fertilizers
  • Controlled-Release Fertilizer Applications
  • How to Choose a Controlled-Release Fertilizer

Controlled-Release Fertilizer Key Features

  • Controlled Nutrient Release: Provides nutrients gradually over an extended period to better match crop nutrient demand.
  • Extended Nutrient Availability: Helps maintain nutrient availability throughout key crop growth stages.
  • Different Release Periods: Available with different release durations, including customized options where applicable.
  • Multiple Fertilizer Types: Includes controlled-release urea, controlled-release NPK, and controlled-release fertilizer blends.
  • Flexible Formulations: NPK ratios, nutrient content, coating systems, and release characteristics can be adjusted for specific applications.
  • Suitable for Large-Scale Agriculture: Designed for commercial farming, fertilizer blending, horticulture, turf, and other professional applications.

Benefits of Controlled-Release Fertilizers

Improved Nutrient Efficiency
Controlled nutrient release can help maintain a more consistent nutrient supply and improve the efficiency of fertilizer applications.

Reduced Nutrient Losses
By slowing nutrient release, controlled-release fertilizers can help reduce the risk of nutrient losses caused by leaching, runoff, or other pathways, depending on soil and weather conditions.

Fewer Fertilizer Applications
Longer release periods can reduce the need for repeated fertilizer applications, which may help lower labor and application costs.

Better Matching of Crop Demand
The release profile can be selected to better correspond with crop growth stages and nutrient requirements.

More Flexible Fertilizer Management
Controlled-release fertilizers can be used in different crop production systems and integrated into conventional soil application, basal fertilization, and other nutrient management programs.

How to Choose a Controlled-Release Fertilizer

Selecting the right controlled-release fertilizer depends on more than the NPK ratio. Consider the following factors:

1. Crop Nutrient Requirements
Identify the crop’s nitrogen, phosphorus, potassium, and secondary nutrient requirements throughout the growing season.

2. Release Period
Choose a release period that matches the crop growth cycle and expected nutrient demand.

3. Fertilizer Type
Select the appropriate product type, such as:
  ● Controlled-Release Urea
  ● Controlled-Release NPK
  ● Controlled-Release Blended Fertilizer

4. Soil and Climate
Soil temperature, moisture, soil type, rainfall, irrigation, and other environmental conditions can influence nutrient release and fertilizer performance.

5. Application Method
Consider whether the fertilizer will be applied as a basal fertilizer, incorporated into soil, used in crop production programs, or applied through other suitable methods.

Customer Reviews:

⭐⭐⭐⭐⭐ – “Risso Nitrogen Fertilizer has dramatically improved my crop yield. My plants are growing healthier and faster than ever!” – Mark T.

⭐⭐⭐⭐⭐ – “I’ve been using Risso’s nitrogen fertilizer for my vegetables, and the results are incredible. Stronger plants and better harvests!” – Sarah G.

Frequently Asked Questions

Controlled-release fertilizer is a fertilizer designed to release nutrients gradually over a defined period rather than making all nutrients immediately available after application. The release profile is designed to better match crop nutrient demand and extend nutrient availability.

Conventional soluble fertilizers generally release nutrients relatively quickly after application, while controlled-release fertilizers are designed to provide nutrients gradually over a longer period.

The actual release rate depends on the fertilizer formulation, release technology, soil temperature, moisture, and other environmental conditions.

Yes. Polymer-coated urea (PCU) is a common type of controlled-release nitrogen fertilizer. The polymer coating regulates the movement of water into the granule and the subsequent release of dissolved urea.

Therefore, Risso can classify its polymer-coated urea products under Controlled-Release Urea rather than creating a separate, overlapping product category.

The release period depends on the product formulation and environmental conditions. Commercial controlled-release fertilizers may be designed for different release periods, such as 60, 90, 120, 180, or 270 days.

Actual nutrient release can vary with temperature, moisture, soil conditions, and the specific product design.

Controlled-release fertilizers can be used for many crops, including cereals, oilseeds, vegetables, fruits, plantation crops, greenhouse crops, turf, and landscape plants. The appropriate formulation and release period should be selected according to crop nutrient requirements and local growing conditions.

Get a Quote Today

Risso supplies controlled-release urea, controlled-release NPK fertilizers, and controlled-release fertilizer blends for agricultural and commercial fertilizer applications.

Our solutions can be developed according to nutrient requirements, crop type, release period, formulation, packaging, and order volume.

Whether you need a standard controlled-release fertilizer or a customized formulation, our technical and sales teams can help you select a suitable product for your application.

📩 Contact us: sales@copy.risso-chemical.com






    Need a custom formula?

    Contact our technical sales team for soil-specific recommendations and bulk pricing.

    Why Choose Risso Controlled-Release Fertilizers?

    • Controlled Nutrient Release designed for extended nutrient availability.
    • Multiple Formulations including controlled-release urea, NPK, and fertilizer blends.
    • Flexible Release Periods for different crops and growing conditions.
    • Customized Formulations based on nutrient ratios, release requirements, and application programs.
    • Bulk Supply Capability for distributors, agricultural companies, and commercial growers.
    • Technical Support for product selection, formulation, packaging, and fertilizer programs.
    Choose the right controlled-release fertilizer for your crop and application requirements. Contact Risso for product specifications, customized solutions, and bulk supply options.