African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6628

Review

Bioformulations based on plant growth promoting rhizobacteria for sustainable agriculture: Biofertilizer or Biostimulant?

Marcel Yévèdo Adoko
  • Marcel Yévèdo Adoko
  • Laboratoire de Biologie et Typage Moléculaire en Microbiologie, Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Technique, Université d'Abomey-Calavi, 05 BP 1604 Cotonou Bénin.
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Nadège Adoukè Agbodjato
  • Nadège Adoukè Agbodjato
  • Laboratoire de Biologie et Typage Moléculaire en Microbiologie, Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Technique, Université d'Abomey-Calavi, 05 BP 1604 Cotonou Bénin.
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Agossou Pacôme Noumavo
  • Agossou Pacôme Noumavo
  • Laboratoire de Biologie et Typage Moléculaire en Microbiologie, Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Technique, Université d'Abomey-Calavi, 05 BP 1604 Cotonou Bénin. 2Laboratoire de Microbiologie et de Technologie Alimentaire, Faculté des Sciences et Technique, Université d'Abomey-Calavi, 04 BP 1107 Cotonou Bénin.
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Olaréwadjou Amogou
  • Olaréwadjou Amogou
  • Laboratoire de Biologie et Typage Moléculaire en Microbiologie, Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Technique, Université d'Abomey-Calavi, 05 BP 1604 Cotonou Bénin.
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Adolphe Adjanohoun
  • Adolphe Adjanohoun
  • Institut National des Recherches Agricoles du Bénin, 01 BP 884 Cotonou Bénin.
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Lamine Baba-Moussa
  • Lamine Baba-Moussa
  • Laboratoire de Biologie et Typage Moléculaire en Microbiologie, Département de Biochimie et de Biologie Cellulaire, Faculté des Sciences et Technique, Université d'Abomey-Calavi, 05 BP 1604 Cotonou Bénin.
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  •  Received: 19 August 2021
  •  Accepted: 23 September 2021
  •  Published: 30 September 2021

Abstract

Integrated production in sustainable agriculture aims to improve the efficiency of biological inputs through plant-based bioformulations or microorganisms, which are an excellent source of natural fertilisers. A variety of plant stimulants are increasingly used in crop production for environmentally sustainable agriculture. These products have different names and the designations are confusing. The aim of this work is to clarify what is meant by biofertilizer and biostimulant. A biofertilizer is a bacterial or fungal inoculant applied to plants with the aim of increasing the availability of nutrients and their use by plants, regardless of the nutrient content of the inoculant itself. A plant biostimulant is substance or microorganism applied to plants for the purpose of improving the nutritional efficiency, abiotic stress tolerance and/or quality characteristics of crops, regardless of its nutrient content. By extension, plant biostimulants also refer to commercial products containing mixtures of these substances and/or microorganisms. Plant Growth Promoting Rhizobacteria (PGPR) can be called biofertilisers or biostimulants; PGPR formulations are biostimulants. It can be noted that biofertilisers are included in biostimulants.

Key words: Biostimulant, biofertilizer, Plant Growth Promoting Rhizobacteria (PGPR), bioformulation, sustainable agriculture.