DEFRA’s Fertiliser Regulation Is Now in Effect – What Farmers Must Know
From April 1st to January 14th, DEFRA regulations require all urea-based fertilisers to contain a urease inhibitor. This mandate, known as Option 4, aims to reduce ammonia emissions and promote environmentally responsible farming across England.
What Compliance Involves
- Use Inhibited Urea: Urea fertilisers used after March 31st must include a urease inhibitor unless advised otherwise by a FACTS-qualified professional.
- Maintain Accurate Records: Farmers must record fertiliser types and application dates to meet inspection requirements.
- Protect the Environment: Reduced nitrogen losses support cleaner air, healthier soils, and water protection.
- Avoid Penalties: Compliance helps avoid potential fines or restrictions on fertiliser use.
This regulation underscores the importance of efficient nitrogen use and environmental sustainability in modern agriculture.
AdvaNShield Inhibitor Range: Ensure Compliance and Boost Productivity
Nitrasol’s AdvaNShield range offers a smart solution for farmers needing to comply with current regulations while improving fertiliser efficiency and crop yields. These advanced nitrogen stabilisers are engineered to limit nitrogen losses through volatilisation, denitrification, and leaching—ensuring more nitrogen reaches your crops.
AdvaNShield NBPT: Safe and Effective Urease Inhibition
AdvaNShield NBPT is a renewable, water-based urease inhibitor containing NBPT (N-(n-butyl) thiophosphoric triamide). It’s a safer, non-toxic alternative to solvent-based products and works effectively with UAN (urea ammonium nitrate) fertilisers.
Benefits at a Glance:
- Cuts ammonia loss by over 50%
- Increases nitrogen availability for plants
- Fully compliant with DEFRA’s Option 4
- Easy on-farm mixing or premixed options
AdvaNShield Nitrogen-Protected Fertilisers
This variant includes a patented, water-soluble polymer that stabilises nitrogen in the ammonium form, reducing both emissions and nitrate leaching. It helps ensure sustained nitrogen availability for crops.
Field-Proven Advantages:
- 54% reduction in nitrous oxide emissions
- 25% lower ammonia loss within 20 days post-application
- 24% decrease in nitrate leaching
- Up to 7.4% yield increase in winter wheat (Norfolk trial)
Flexible Use Options
Nitrasol offers:
- Premixed AdvaNShield fertilisers: Ready for immediate application.
- AdvaNShield NBPT in canisters: Mix with your fertiliser for tailored application.
Achieve Higher Yields and Lower Fertiliser Waste
With AdvaNShield technology, farmers have achieved a 4.5% improvement in nitrogen use efficiency and a 4% increase in overall crop yields. In some cases, just one nitrogen application was sufficient, reducing field operations and saving time during critical seasons.
Results Farmers Are Seeing:
- More efficient fertiliser use
- Enhanced crop productivity
- Reduced environmental footprint
- Full regulatory compliance
Which AdvaNShield Product is Right for Your Farm?
| Product | Key Feature | Best For |
| AdvaNShield NBPT | Reduces ammonia volatilisation | Urea-based fertiliser strategies |
| AdvaNShield Fertilisers | Broad nitrogen stabilisation in varied soil types | Farmers seeking pre-mixed, ready-to-use solutions |
Be Ready – Stay Compliant and Sustainable
With DEFRA’s Option 4 regulation in full effect, adopting nitrogen inhibitors like AdvaNShield is no longer optional—it’s essential. These products not only support compliance but also contribute to sustainable, high-yield farming.
Contact Nitrasol today to learn how AdvaNShield can optimise your fertilisation strategy while ensuring you’re on the right side of the regulations.
