Effect of bioslurries on tomato Solanum lycopersicum L and lettuce Lactuca sativa development

Authors

  • Ivan Funes Pinter Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Almirante Brown 500 (M5528AHB). Chacras de Coria. Mendoza. Argentina https://orcid.org/0000-0002-4137-0425
  • María Victoria Salomón Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Av. Ruiz Leal s/n - Parque Gral. San Martín (M5500XAD). Mendoza. Argentina https://orcid.org/0000-0002-6929-6685
  • José Nicolás Martín Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). Av. Ruiz Leal s/n - Parque Gral. San Martín (M5500XAD). Mendoza. Argentina https://orcid.org/0000-0003-2827-0638
  • Ernesto Martín Uliarte Agrotecnología Sostenible. Estación Experimental Mendoza. Instituto Nacional de Tecnología Agropecuaria (INTA EEA Mendoza). San Martin 3853 (M5507EVY). Chacras de Coria. Mendoza. Argentina https://orcid.org/0000-0002-9657-2753
  • Andrea Hidalgo Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias. Almirante Brown 500 (M5528AHB). Chacras de Coria. Mendoza. Argentina https://orcid.org/0000-0002-5897-4292

DOI:

https://doi.org/10.48162/rev.39.082

Keywords:

anaerobic digestion, agroecology, organic production, plant nutrition, Lycopersicum esculentum

Abstract

Bioslurries, obtained by anaerobic digestion of fresh organic matter, are emerging as a cheaper and low-impact alternative for synthetic products in agriculture. The aim of this study was to evaluate bioslurry obtained from biogas digestion (Biog), bioslurry for plant nutrition by FAO (Bfao), and lactic fermentation (Blac) as biostimulant in tomato and lettuce plants. Based on a toxicity test, a 10% dilution was finally applied to the plants. In lettuce, Bfao and Blac significantly increased aerial biomass (2.17 ±0.54 and 2.33 ±1.13 g respectively), regarding water control (1.16 ±0.60 g), while root biomass was only increased by Bfao (1.60 ±0.44 g) compared to control (0.66 ±0.34 g). All digestates increased chlorophyll content index (CCI), while yield (Fv/Fm) and performance index (Plabs) did not show differences with water control. In tomato, only aerial biomass was significantly increased by Bfao. All digestates significantly increased CCI, while Fv/Fm was only significantly higher in Bfao and Blac, related to water control. PIabs showed no differences. In both plant species, commercial fertilizer showed significantly higher values for all parameters. In conclusion, all digestates stimulated plant growth, Bfao showed the highest effect on tomatoes and lettuce biomass followed by Blac and Biog, being a cheaper, safer and lower-impact alternative for traditional products for crop growing.

Highlights

  • Digestates are valuable by-products, with different characteristics and effects on plant biomass, suggesting complex interactions.
  • All digestates stimulated tomatoes and lettuce growth.
  • The digestate designed by FAO showed the highest effect on plant biomass, constituting an adequate alternative for a cheaper, safer and low-impact strategy for crop growth.

Downloads

Published

19-12-2022

Issue

Section

Natural resources and environment

Most read articles by the same author(s)