A contribution to set a legal framework for biofertilisers

Area of Science:

• Agricultural Microbiology
• Plant Science
• Soil Science

Background:

• The widespread use of microorganisms for plant nutrition has led to an ambiguous definition of 'biofertiliser'.
• Existing definitions are inconsistent due to the diverse microbial mechanisms involved in plant nutrition.
• The term 'biofertiliser' originates from 'biological fertiliser', emphasizing the use of living microorganisms.

Purpose of the Study:

• To propose a clear and consistent definition for biofertiliser products.
• To differentiate biofertilisers from biostimulants and conventional fertilisers (inorganic and organic).
• To provide a framework for regulating biofertiliser registration and marketing.

Main Methods:

• Literature review and expert consensus to establish a precise definition.
• Analysis of microbial mechanisms and product composition.
• Development of quality control guidelines for biofertiliser products.

Main Results:

• A proposed definition for biofertilisers, clarifying their microbial basis and function.
• Emphasis on multifunctional microorganisms and multi-strain biofertilisers.
• A set of proposed rules to ensure biofertiliser quality and market standards.

Conclusions:

• A standardized definition is crucial for the consistent regulation and marketing of biofertilisers.
• Clear definitions and quality standards will promote farmer adoption and the effective use of biofertilisers.
• This work provides a foundation for legal provisions governing biofertiliser products.