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Understanding and optimizing the use of algae in promoting crop nutrient use efficiency and quality

Code: 9781835458297
Publication date: 21-08-2026
Extent: 20 pages

Contributions by: Domenico Ronga, Annamaria Di Serio and Tommaso Nappo, University of Salerno, Italy

Chapter synopsis:

This chapter provides an integrated framework for assessing algal biostimulants, starting from the characterization of algal biostimulants, their mechanisms of action and composition. Using a series of case studies on the use of both microalgal and macroalgal in various crops, the chapter then explore ways of optimizing the use of these products in the field to optimise nutrient use efficiency, and product quality and yields.



DOI: 10.19103/AS.2025.0166.18
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Table of contents
  • Introduction
  • Types of algal biostimulant
  • Mechanisms of action: direct and indirect effects
  • Composition of algal extracts
  • Case study 1: microalgal extracts as biostimulants to increase lettuce yields
  • Case study 2: integration of microalgal biostimulants with nitrogen fertilization in durum wheat cultivation
  • Case study 3: integration of macroalgal biostimulants with nitrogen fertilization in malting barley cultivation
  • Case study 4: using macroalgal biostimulants in olive cultivation to improve nutrient use efficiency and quality
  • Conclusion and future trends
  • Where to look for further information
  • References

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