Summary
This narrative review examines microalgae and cyanobacteria as biostimulants for sustainable agriculture, highlighting their cultivation on non-arable land using wastewater and CO2 effluents as cost-effective feedstocks. The authors synthesise cultivation, extraction and application techniques whilst considering European regulatory frameworks and circular economy integration, positioning these photosynthetic organisms as alternatives to traditional seaweed-based biostimulants.
Regional applicability
The review's emphasis on European regulatory frameworks makes it directly applicable to United Kingdom agricultural practice and policy. The cultivation strategies using wastewater and CO2 are relevant to UK circular economy objectives and non-arable land availability, though site-specific efficacy and regulatory compliance would require localised validation.
Key measures
Cultivation techniques (liquid and gaseous effluent-based), extraction methods (green approaches), application techniques for crop productivity and quality under abiotic stress, regulatory compliance frameworks.
Outcomes reported
The review synthesises evidence on cultivation, extraction and application techniques for microalgae and cyanobacteria-based biostimulants, with emphasis on production from wastewater and CO2 streams and emerging green-extraction methods.
Topic tags
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