Summary
This comprehensive review systematically examines plant biostimulants — products of diverse biological origins (bacteria, fungi, seaweeds, humates) — and proposes a science-based definition distinguishing them from conventional fertilisers and plant growth regulators. The authors argue that biostimulant research should focus on demonstrating efficacy and safety with broad mechanistic understanding, rather than requiring elucidation of specific molecular modes of action, facilitating both legitimate product development and sound regulatory frameworks.
Regional applicability
The review provides a global perspective on biostimulant classification and regulation. Its proposed definition and validation framework are relevant to United Kingdom agricultural policy and industry, particularly as regulatory clarity becomes increasingly important for product registration and market development within the EU and UK contexts.
Key measures
Conceptual framework for biostimulant classification, proposed definition and mechanisms of action, efficacy and safety criteria
Outcomes reported
The review proposes a comprehensive definition of plant biostimulants as formulated products of biological origin that improve plant productivity through novel or emergent properties of their constituents, distinct from known nutrients or growth regulators. It outlines principles for biostimulant research validation, emphasising proof of efficacy and safety over determination of specific modes of action.
Topic tags
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