1、Bio

Therefore, to reduce environmental threats while preserving substantial agricultural yields of good quality, controlled-release fertilizers (CRFs) have been developed recently with various coating materials and techniques.

2、Controlled Release Fertilizers: A Review on Coating Materials and

With existing challenges on low nutrient use efficiency (NUE) of urea and its environmental concerns, controlled release fertilizers (CRFs) have become a potential solution by formulating them to synchronize nutrient release according to the requirement of plants.

3、Optimizing Waterborne Polyacrylate Coating for Controlled

Abstract The efficacy of coated fertilizers in enhancing nutrient use efficiency and reducing environmental impacts depends on their coating properties. This study developed three biodegradable, waterborne polyacrylate latexes (A, B, and C) as eco-friendly coatings for controlled-release fertilizers (CRFs) using the Wurster fluidized bed process.

4、Controlled

Traditional nitrogen fertilizers, like urea, lead to unde-sirable leaching, runoff losses, and low nutrient use efficiency in crops upon contact with water. Controlled-release fertilizers (CRFs) present a promising solution by mitigating nutrient loss and enhancing plant uptake.

5、Coated Controlled

The review focuses on the consequences of conventional fertilizers, the need to control the release of fertilizers and types of coatings used, and their application in sustainable...

Coated, Stabilized Enhanced

Developing coated controlled-release urea or urease/nitrification inhibitors is crucial, which can synchronize nutrient release rates for requirement patterns of the crop in the natural field.

Coated Controlled

he use of materials coated with Controlled Release Fertilizers (CRFs) are being used. The coating of materials outside the fertilizer does not allow the chemicals to spread completely within one application of fertil.

Controlled

Controlled release fertiliser (CRF) plays an important role in sustainable agriculture. Its implementation is considered as a transformative approach, promoting environmentally conscious methods for enhancing crop productivity.

Key Features of Controlled

Controlled-release fertilizers (CRF) deliver nutrients gradually through a specialized coating that synchronizes release with plant demand, improving efficiency and reducing losses.

Controlled Release Fertilizers: A Review on Coating Materials and

Important factors affecting rate of release, mechanism of release and mathematical modelling approaches to predict nutrient release are also discussed.

Coated controlled-release fertilizer (CRF) is a specialized chemically treated fertilizer designed to release nutrients slowly in soil, aligning with the nutrient demands of plants throughout their growth cycles. Proper use of CRF can significantly improve fertilizer utilization, reduce environmental pollution, and ensure crops receive continuous and balanced nutrient supply. Below are key strategies to optimize its effectiveness:

1. Select Suitable Crops and Planting Conditions

• Choose nutrient-demanding and long-growing-season crops, such as rice, maize, or other high-yielding varieties.
• Tailor CRF selection to local climate, soil type, and farming practices for optimal compatibility.

2. Timing and Application Methods

• Apply CRF during critical growth stages, such as early seedling establishment or flowering, based on regional climate and crop phenology.
• Use band application or hole placement to distribute CRF evenly, avoiding excessive dosage.

3. Control Fertilization Rates

• Determine application rates based on crop requirements and soil fertility. A general recommendation is 10–20 kg per mu, adjusted according to product specifications and field trials.
• Conduct pre-application soil testing to assess nutrient levels and pH, refining dosage accuracy.

4. Post-Application Management

• Irrigate promptly after application to facilitate even nutrient dispersion.
• Monitor crop health closely; adjust fertilization strategies if abnormalities arise.
• For fertilizer-tolerant crops, slightly increase rates while avoiding overapplication to prevent waste and pollution.

5. Regular Inspection and Maintenance

• Check CRF integrity periodically; replace damaged, dislodged, or degraded coatings promptly.
• Maintain fields by controlling weeds, pests, and diseases to maximize fertilizer efficacy.

6. Environmental Protection and Sustainability

• Combine CRF use with eco-friendly practices, such as organic fertilizers and bio-fertilizers, to minimize synthetic chemical reliance.
• Enhance irrigation infrastructure to improve water efficiency and reduce nutrient runoff.

7. Scientific Fertilization Guidelines

• Develop fertilization plans grounded in agricultural research and localized testing.
• Train farmers in scientific fertilization techniques to boost awareness and implementation capacity.

By integrating these practices, CRF can achieve higher efficiency, lower environmental impact, and sustainable agricultural productivity. For best results, pair CRF use with complementary technologies like crop rotation, intercropping, and conservation tillage to create an eco-friendly farming system.