The environmental footprint of chemical fertilizers has become increasingly evident over decades of intensive use (Alom et al., 2025). A large proportion of applied nutrients is not taken up by crops and instead enters surrounding ecosystems. Nitrogen leaching into groundwater contaminates drinking water sources, while surface runoff carries nutrients into rivers, lakes and coastal waters, triggering eutrophication (Madjar et al., 2024). Algal blooms fueled by excess nutrients reduce oxygen levels in water bodies, creating hypoxic zones where fish and aquatic organisms cannot survive. These processes have been documented globally, from inland freshwater systems to large coastal dead zones, and they represent one of the most visible consequences of fertilizer mismanagement (Griffith and Gobler, 2020). Beyond water pollution, nitrogen fertilizers contribute significantly to atmospheric emissions of nitrous oxide, a greenhouse gas with a warming potential far greater than carbon dioxide. Agriculture has thus become a notable driver of climate change, not only through land use but also through fertilizer-derived emissions (Ladha et al., 2025).
Soil is another silent victim of long-term chemical fertilizer dependence. Repeated application of synthetic fertilizers without sufficient organic inputs alters soil chemistry and disrupts biological processes (Tang et al., 2024). Soil organic matter, which is critical for nutrient retention, water infiltration and microbial activity, often declines under fertilizer-intensive systems. Over time, soils can become compacted, acidic and biologically depleted; requiring even higher fertilizer inputs to maintain yields. This creates a feedback loop in which soils lose their natural fertility and resilience, while farmers become increasingly dependent on external inputs (Ray et al., 2025). Numerous studies have shown that soils managed primarily with chemical fertilizers support lower microbial diversity and reduced enzymatic activity compared with soils amended with organic materials. These biological losses weaken natural nutrient cycling and disease suppression, making agroecosystems more fragile in the face of climatic stress.
In contrast, organic fertilizers offer a fundamentally different approach to soil fertility management. Derived from plant residues, animal manure, compost, and organic waste, these inputs do not merely supply nutrients but also rebuild soil structure and biological function (Culas et al., 2025). Organic fertilizers release nutrients slowly as they decompose, reducing nutrient losses and improving synchronization between nutrient availability and crop demand. This slow-release pattern minimizes leaching and runoff, thereby lowering the risk of water pollution. At the same time, organic inputs increase soil organic carbon, which enhances aggregation, improves water-holding capacity, and promotes root development. These physical improvements make soils more resilient to droughts, floods, and temperature extremes, conditions that are becoming more frequent under climate change (Asadu et al., 2024).
Beyond physical benefits, organic fertilizers play a critical role in restoring soil biological health. Healthy soils host diverse communities of bacteria, fungi, protozoa, and invertebrates that drive nutrient cycling and maintain ecosystem stability (Khan et al., 2024). Organic amendments provide energy sources for these organisms, stimulating microbial growth and diversity. Enhanced microbial activity improves nutrient availability through processes such as nitrogen mineralization and phosphorus solubilization, reducing the need for synthetic inputs. Evidence from long-term field experiments indicates that soils receiving organic fertilizers consistently show higher microbial biomass, greater enzymatic activity, and more stable nutrient cycling than soils managed exclusively with chemical fertilizers. These biological gains translate into more sustainable productivity over time (Oyebiyi et al., 2026).
Among organic amendments, vermicompost deserves particular attention due to its unique properties. Produced through the action of earthworms, vermicompost contains finely processed organic matter enriched with beneficial microorganisms, enzymes, and plant growth regulators. Compared to conventional compost, vermicompost often exhibits higher nutrient availability and greater microbial activity (Hussain and Abbasi, 2018). Studies have shown that vermicompost can enhance crop growth, improve soil structure, and increase nutrient uptake efficiency. Importantly, vermicompost can be integrated with reduced doses of chemical fertilizers, allowing farmers to maintain yields while lowering environmental risks. This integrated approach illustrates that sustainability does not necessarily require complete elimination of synthetic inputs, but rather their strategic reduction and balanced use.
Despite these advantages, organic fertilizers alone may not always meet the immediate nutrient demands of high-yielding crop systems, particularly in regions with intensive agriculture. Nutrient release from organic materials depends on microbial activity, temperature and moisture, which can vary widely across seasons and environments (Yu et al., 2024). This limitation has driven interest in advanced fertilizer technologies designed to improve nutrient use efficiency while minimizing environmental losses. Among these innovations, nano-urea and nano-fertilizers have gained significant attention. By delivering nutrients at the nanoscale, these products aim to enhance plant uptake and reduce the quantity of fertilizer required (Stojanova et al., 2025). Preliminary research suggests that nano-urea can improve nitrogen use efficiency and decrease nitrogen losses compared to conventional urea, potentially lowering emissions and water contamination.
Transitioning toward sustainable fertilization systems also involves social, economic, and policy challenges. Farmers often rely on chemical fertilizers because they are familiar, predictable and supported by established supply chains and subsidies. Organic fertilizers, by contrast, may vary in quality and nutrient composition, and their benefits often manifest gradually rather than immediately. In some cases, poorly processed organic fertilizers may contain heavy metals or pathogens, posing risks to soil and food safety (Aguiar-Noury et al., 2025). These concerns underscore the importance of quality control, standardization, and regulatory oversight in the organic fertilizer sector. Sustainable fertilization is not merely a technical issue; it is a governance issue that requires coherent policies and institutional support.
Integrated nutrient management provides a realistic pathway forward by combining the strengths of different fertilizer types. Rather than framing chemical and organic fertilizers as mutually exclusive, integrated approaches seek to optimize nutrient inputs through careful planning, soil testing, and precision application (Paramesh et al., 2023). Organic fertilizers and composts can be used to build soil health and long-term fertility, while targeted mineral inputs or nano-fertilizers can address specific nutrient deficiencies during critical growth stages. Such systems reduce environmental losses, enhance resource efficiency, and support stable yields (Hossain et al., 2025). Evidence from multiple agroecosystems indicates that integrated nutrient management can outperform conventional fertilizer regimes in terms of both productivity and sustainability.
Governments and institutions strongly influence fertilizer use through policies and subsidies. When incentives favor chemical fertilizers, adoption of organic alternatives slows. Shifting support toward sustainable practices, farmer training, and local compost and vermicompost production can drive progress. Research must continue on soil health, nutrient cycles, and new technologies, while ensuring scientific findings are translated into practical guidance—especially for farmers in low- and middle-income countries where soil degradation and fertilizer misuse are most severe. The fertilizer debate highlights a bigger issue about the future of agriculture. Food production cannot continue by depleting natural resources and ignoring environmental damage. Soil degradation, water pollution, and climate change already threaten global food security. Sustainable options like organic fertilizers, vermicompost, biofertilizers, and precision farming are not a step backward, but a shift toward smarter, eco-friendly systems. These approaches treat soil as a living system rather than just a base for chemicals. Protecting soil health is vital for long-term agriculture, environmental balance, and human well-being.
Chemical fertilizers helped feed the world, however their unchecked use has revealed clear limits. The path forward lies not in abandoning science, but in applying it more wisely. Fertilizing the future without polluting it demands balance, humility, and long-term thinking. It requires aligning agricultural productivity with environmental stewardship, ensuring that the pursuit of food security does not undermine the ecosystems on which it depends. The future of agriculture will be judged not only by how much it produces, but by how well it preserves the soil, water, and climate for generations to come.

Acknowledgements

The author(s) sincerely acknowledge the researchers, policymakers, and agricultural practitioners whose work in sustainable nutrient management has contributed to the ideas discussed in this editorial.

Ethics approval statement

None to declare.

Data availability

The data generated from this study will be available on the valid request from the corresponding author.

Informed consent statement

Not applicable.

Conflict of interest

The author declare no competing interests.

Authors’ contribution

Palash Bose: Conceptualization, literature review, writing-original draft; Kazi Abdus Sobur: Literature review, conceptual input, technical refinement critical revision, and review. The authors has read and approved the final version of the published editorial.