Humic substances and rhizobacteria enhance the yield, physiology and quality of strawberries

  • Simeón MARTÍNEZ-DE LA CRUZ Antonio Narro Autonomous Agrarian University, Department of Horticulture, Calzada Antonio Narro 1923, Buenavista, 25315, Saltillo, Coahuila (MX)
  • José A. GONZÁLEZ-FUENTES Antonio Narro Autonomous Agrarian University, Department of Horticulture, Calzada Antonio Narro 1923, Buenavista, 25315, Saltillo, Coahuila (MX)
  • Armando ROBLEDO-OLIVO Antonio Narro Autonomous Agrarian University, Department of Food Science and Technology, Calzada Antonio Narro 1923, Buenavista, 25315, Saltillo, Coahuila (MX)
  • Rosalinda MENDOZA-VILLARREAL Antonio Narro Autonomous Agrarian University, Department of Horticulture, Calzada Antonio Narro 1923, Buenavista, 25315, Saltillo, Coahuila (MX)
  • Armando HERNÁNDEZ-PÉREZ Antonio Narro Autonomous Agrarian University, Department of Horticulture, Calzada Antonio Narro 1923, Buenavista, 25315, Saltillo, Coahuila (MX)
  • Miriam D. DÁVILA-MEDINA Autonomous University of Coahuila, Faculty of Chemical Sciences. Ing. J. Cárdenas Valdez S/N, República, 25280 Saltillo, Coahuila (MX)
  • Daniela ALVARADO-CAMARILLO Antonio Narro Autonomous Agrarian University, Department of Food Science and Technology, Calzada Antonio Narro 1923, Buenavista, 25315, Saltillo, Coahuila (MX)
Keywords: Fragaria x ananassa Duch, fulvic acids, humic acids, microorganisms


The strawberry fruit (Fragaria × ananassa Duch.) is appreciated for its aroma, color, texture and nutritional value. In conventional agriculture, the use of fertilizers damages the environment since it causes loss of soil fertility, salinity and its erosion, hence production alternatives, without harming the environment, are sought. The objective of this study was to evaluate the effect of a biostimulant based on humic substances and rhizobacteria, on the production and quality of the strawberry cultivar ‘San Andreas’. Strawberry plants cultivar ‘San Andreas’ were treated with fulvic acids + mixture of microorganisms, humic acids + Pseudomonas fluorescens, fulvic acids + Azospirillum brasilense, fulvic acids + Pseudomonas fluorescens and the mixture AH and AF + Azospirillum brasilense with two doses (d1, d2) in total 10 treatments were applied plus the control. Humic substances were applied every 15 days and rhizobacteria every 30 days. The results showed that the AFyAzoz d1 increased over control plants, the number of leaves in 38.3%, root volume in 42.6%, the fresh weight in 130% and dry weight in 63.8%, the number of fruits 50.0% and the yield in 59.5%. The AFyPF d1 favored Photosynthesis in 127.3%; AFyPF d1 increased TSS in 25%, AFyPF d2 vitamin C in 17.1% and MHyF + Azoz d1 increased in 20% the content of Phenols. Humic substances plus rhizobacteria are an ecological alternative to be used as biostimulant in the production and quality of strawberry plants.


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How to Cite
MARTÍNEZ-DE LA CRUZ, S., GONZÁLEZ-FUENTES, J. A., ROBLEDO-OLIVO, A., MENDOZA-VILLARREAL, R., HERNÁNDEZ-PÉREZ, A., DÁVILA-MEDINA, M. D., & ALVARADO-CAMARILLO, D. (2022). Humic substances and rhizobacteria enhance the yield, physiology and quality of strawberries. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 50(1), 12578.
Research Articles
DOI: 10.15835/nbha50112578