Next-generation enhanced-efficiency fertilizers for sustained food security.

Area of Science:

• Agricultural Science
• Environmental Science
• Soil Science

Background:

• Nitrogen losses from agricultural systems contribute to environmental pollution.
• Enhanced-efficiency fertilizers (EEFs) offer a strategy to mitigate these losses by controlling nitrogen release and transformations.
• Farmer adoption of EEFs is hindered by the need for consistent performance data and economic viability information.

Purpose of the Study:

• To demonstrate that the environmental benefits of EEFs, specifically reduced nitrogen pollution costs, exceed their economic costs.
• To advocate for the integration of EEF benefits into fertilizer policies.
• To present novel approaches for designing next-generation EEFs.

Main Methods:

• Economic analysis comparing EEF costs with the social costs of nitrogen pollution.
• Review and synthesis of existing data on EEF performance across diverse agricultural conditions.
• Conceptual outlining of new EEF design strategies, including enzyme inhibitors and responsive biodegradable coatings.

Main Results:

• The social benefits derived from reduced nitrogen pollution due to EEF use significantly surpass their associated costs.
• EEFs present a cost-effective solution for mitigating environmental nitrogen pollution.
• Novel EEF designs incorporating enzyme inhibitors and rhizosphere-responsive coatings show promise for enhanced efficacy.

Conclusions:

• EEFs provide substantial environmental and economic advantages that justify their widespread adoption.
• Current fertilizer policies should be updated to reflect the societal benefits of EEFs.
• Innovative materials science approaches are paving the way for more effective and sustainable EEF technologies.