Essential Quality Attributes of Culture Media Used as Substrates in the Sustainable Production of Pre-Basic Potato Seeds

Haydee Peña, Mila Santos (), Beatriz Ramírez, José Sulbarán, Karen Arias, Victoria Huertas and Fernando Diánez
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Haydee Peña: Laboratory for the Recovery of Compostable Waste, Universidad Nacional Experimental del Táchira, San Cristóbal 5001, Venezuela
Mila Santos: Departamento de Agronomía, Escuela Superior de Ingeniería, Universidad de Almería, 04120 Almería, Spain
Beatriz Ramírez: Laboratory for the Recovery of Compostable Waste, Universidad Nacional Experimental del Táchira, San Cristóbal 5001, Venezuela
José Sulbarán: Laboratory for the Recovery of Compostable Waste, Universidad Nacional Experimental del Táchira, San Cristóbal 5001, Venezuela
Karen Arias: Laboratory for the Recovery of Compostable Waste, Universidad Nacional Experimental del Táchira, San Cristóbal 5001, Venezuela
Victoria Huertas: Departamento de Agronomía, Escuela Superior de Ingeniería, Universidad de Almería, 04120 Almería, Spain
Fernando Diánez: Departamento de Agronomía, Escuela Superior de Ingeniería, Universidad de Almería, 04120 Almería, Spain

Sustainability, 2024, vol. 16, issue 19, 1-21

Abstract: The sustainability of the primary sector is closely linked to meeting the demand for seeds using agro-industrial waste and bioresidues. Sustainability is a multidimensional concept focused on achieving environmental health, social justice, and economic viability. To this end, an experiment was designed based on a combination of biotechnological strategies accessible to many individuals. The first strategy involves the use of compost and vermicompost as cultivation substrates; the second is the in vitro acclimatization of potato plants to these substrates; and the third is the incorporation of Trichoderma asperellum into these substrates to determine the synergistic effect of both. The compost used in this work came from sewage sludge from an agri-food company (Cp); a dining room and pruning waste from a university campus (Cu); and vermicomposted coffee pulp waste (Cv). Each sample was mixed with coconut fiber (Fc) in proportions of 100, 75, 50, and 25%. In the resulting mixtures, María Bonita variety vitroplants were planted and placed in a greenhouse. The biometric response in the three cases indicated a dependence on the type of compost and the proportion of the coconut fiber mixture. The inoculation of Trichoderma asperellum with sewage sludge compost increased stem thickness (42.58%) and mini-tuber weight (6.74%). In contrast, uninoculated treatments showed the best performance in terms of the number of mini-tubers. A 50:50 mixture of sewage sludge compost with coconut fiber and without inoculation of Trichoderma asperellum was the best treatment for the production of pre-basic seeds of the María Bonita potato variety. The use of composted agricultural waste and bioresidues is shown as a valid and low-cost alternative for the sector, even independently of the incorporation of additional inoculants.

Keywords: vermicompost; plant growth-promoting fungi; Solanum tuberosum; substrate; organic matter; bio-waste; composting (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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