Revista de Investigaciones Altoandinas - Journal of High Andean Research

Vol. 28 (2026): Publicación continua
Original articles

Influence of Guinea Pig Manure and Effective Microorganisms on the Growth and Quality of Andean Papaya (Carica pubescens) Seedlings in the Nursery

pdf (Portuguese)
Julio César Sosa Choque
Universidad Nacional del Altiplano
Dison Lizardo Bustinza Arpita
Universidad Nacional del Altiplano
Grover Bailon Cornejo Condori
Universidad Nacional del Altiplano
Mara Rubia Cibien Costa Cornejo
Faculdade de Ciencias Sociais Aplicadas de Viana (FESAV), Brasil
Ali William Canaza-Cayo
Departamento de Estatística, Instituto de Ciências Exatas e Tecnológicas, Federal University of Lavras, Brasil.

Published 2026-08-18

Keywords

  • cost analysis,
  • bioinputs,
  • guinea pig manure,
  • effective microorganisms,
  • Andean papaya

Copyright (c) 2026 Julio César Sosa Choque, Dison Lizardo Bustinza Arpita, Grover Bailon Cornejo Condori, Mara Rubia Cibien Costa Cornejo, Ali William Canaza-Cayo

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Sosa Choque, J. C., Bustinza Arpita, D. L., Cornejo Condori, G. B., Cibien Costa Cornejo, M. R., & Canaza-Cayo, A. W. (2026). Influence of Guinea Pig Manure and Effective Microorganisms on the Growth and Quality of Andean Papaya (Carica pubescens) Seedlings in the Nursery. Revista De Investigaciones Altoandinas - Journal of High Andean Research, 28, e28818. https://doi.org/10.18271/ria.2026.818

Abstract

The Andean papaya (Carica pubescens) is a fruit species native to the Andes, with high nutritional and commercial value, whose production faces limitations due to the scarcity of high-quality seedlings, associated with the use of nutrient-poor substrates and the limited application of bioinputs. Aiming to identify sustainable alternatives for producing vigorous seedlings, the effect of different organic fertilizers and Effective Microorganisms (EM) on morphological development, physiological quality, and economic profitability in the nursery was evaluated. The experiment was conducted under a randomized complete block design (RCBD), with four treatments: fermented manure (T1), foliar EM (T2), manure + EM (T3), and an agricultural soil control (T4), in three replications. Height, number of leaves, stem diameter, leaf area, and root length were evaluated, along with an economic analysis per treatment. The results showed highly significant differences (p < 0.01), with coefficients of variation below 12%, indicating adequate experimental precision. Treatment T3 stood out, recording the greatest root length, leaf area, and stem diameter, suggesting a synergistic effect between the nutritional contribution of the manure and the microbial activity of EM. Although T1 obtained the highest economic profitability (1.47), T3 also showed a high return (1.37). The results demonstrate that integrating guinea pig manure with EM significantly improves the growth and quality of Carica pubescens seedlings, constituting a viable and sustainable agroecological strategy for Andean nurseries.

pdf (Portuguese)

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