Controlled release fertilisers enhance soil health

Controlled Release Fertilisers (CRF’s) have long been a staple in the professional turf manager’s arsenal, known for their ability to sustain plant health and optimise nutrient use.

Recent findings from Shandong Agricultural University, highlighted in the European Journal of Agronomy (Gao et al., 2023), offer valuable new insights into CRFs’ role in enhancing soil health and nutrient efficiency.

The research, which analysed the effects of polymer-coated urea (PCU), sulphur-coated urea (SCU), and polymer/sulphur dual layer-coated urea (PSCU), demonstrated that SCU and PSCU particularly improve the relative abundances of plant growth-promoting microorganisms (PGPMs) and soil organic matter (SOM), leading to improved plant growth and reduced diseases compared to conventional urea and PCU.

For turf professionals, this research reinforces their strategic value in modern turf management with a focus on sustainability and efficiency.

Enhancing turf through soil health and sustainability

This extensive 12-year study reaffirms CRFs’ benefits, underscoring their impact on microbial life and soil organic matter—key components for maintaining high-quality turf. This study deepens our understanding of how these fertilisers contribute to a more robust and resilient soil ecosystem.

It’s a reminder that CRFs are not just about feeding the turf but are integral to fostering a healthier soil environment, setting the stage for sustainable management practices.

Strategic nutrient management

Acknowledging the expertise of turf professionals, Dr. Andy Owen, International Technical Manager for ICL Growing Solutions points out how this research aligns with the industry’s push towards more precise and environmentally responsible nutrient management.

In light of tightening environmental regulations, the study’s findings emphasise the importance of CRFs in achieving high nutrient use efficiency (NUE) without compromising soil health. “It’s about enhancing our practices with evidence-backed strategies,” Dr. Owen notes, suggesting that this research offers a solid foundation for making informed decisions on fertiliser use.

Integrated Turf Management (ITM): A comprehensive approach

The concept of Integrated Turf Management isn’t new to professionals in the field. However, the study’s implications for CRF use enrich the ITM framework by validating a holistic approach to turf care that balances chemical, biological, and cultural practices.

Dr. Owen encourages viewing CRFs within the broader context of ITM, where they complement other elements like biostimulants and wetting agents. “This is about fine-tuning our approach with precision and care, grounded in the latest research,” he asserts, underlining the strategic role of CRFs in advanced turf management.

Future directions: Environmental stewardship and quality

Looking ahead, the research not only reaffirms the benefits of CRFs but also highlights their potential in reducing environmental impact while maintaining turf quality.

It opens up avenues for integrating CRFs with biostimulants derived from plant-promoting microorganisms, promising enhanced efficiency and sustainability. “This study equips us with insights to push the boundaries of what’s possible in turf management, prioritising both performance and environmental stewardship,” Dr. Owen reflects, recognising the evolving landscape of turf management.

Conclusion: Strengthening expertise with new CRF research

For seasoned turf professionals, the latest research on CRFs offers a compelling narrative that strengthens existing knowledge and practices.

It’s an invitation to reassess and refine strategic approaches to turf management, leveraging new evidence to enhance soil health, nutrient management, and environmental sustainability.

As the industry continues to evolve, incorporating these insights into your practice ensures that turf management strategies remain at the forefront of innovation and excellence.