Efecto de dosis y fuentes fertilizantes en el rendimiento y rentabilidad del cultivar de yuca INIAP P-652 “La Rendidora”

Helen Cecibel Aquino Rivera; Galo Alexander Cedeño García; Sofía Del Rocío Velásquez Cedeño; Benny Alexander Avellán Cedeño; María Virginia Mendoza García

doi:10.18004/investig.agrar.2026.e2801882

Authors

Helen Cecibel Aquino Rivera Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López (ESPAM MFL). Calceta, Manabí, Ecuador. https://orcid.org/0009-0004-2478-3617
Galo Alexander Cedeño García Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López (ESPAM MFL). Calceta, Manabí, Ecuador. https://orcid.org/0000-0002-0927-5807
Sofía Del Rocío Velásquez Cedeño Escuela Superior Politécnica Agropecuaria de Manabí Manuel Félix López (ESPAM MFL). Calceta, Manabí, Ecuador. https://orcid.org/0000-0001-5141-0489
Benny Alexander Avellán Cedeño Instituto Nacional de Investigaciones Agropecuarias (INIAP), Estación Experimental Portoviejo. Portoviejo, Manabí, Ecuador. https://orcid.org/0000-0002-0820-4222
María Virginia Mendoza García Instituto Nacional de Investigaciones Agropecuarias (INIAP), Estación Experimental Portoviejo. Portoviejo, Manabí, Ecuador. https://orcid.org/0009-0000-8834-1122

DOI:

https://doi.org/10.18004/investig.agrar.2026.e2801882

Keywords:

Manihot esculenta Crantz, Economic benefit, Fertilization, Productivity

Abstract

Fertilization is fundamental for efficient root formation and high yield in cassava. The objective of this study was to evaluate the effect of fertilizer doses and sources on the yield and profitability of the cassava cultivar INIAP P-652 "La Rendidora" in Ecuador. Factorial treatments of two fertilizer sources (chemically blended compound fertilizer – CBCF and bulk physically blended fertilizer – BPBF) and three fertilization doses (200, 400, and 600 kg ha⁻¹), plus a control treatment, were evaluated using a randomized complete block design in an A × B + N arrangement. The main variables recorded were root yield (RY), agronomic efficiency of fertilization (AEF), and economic profitability (EP). The results showed that RY was significantly affected (p < 0.05) by the fertilization treatments compared with the control. The CBCF produced the highest RY, with an average increase of 11.22 and 42.95% over the BPBF and the control treatment, respectively. No significant differences (p > 0.05) were detected among doses for RY; therefore, 200 kg ha⁻¹ may be the most convenient dose. The AEF was significantly higher (p < 0.05) with CBCF than with BPBF. The 200 kg ha⁻¹ dose achieved an AEF significantly higher (p < 0.05) than the 400 and 600 kg ha⁻¹ doses. Finally, fertilization with CBCF at a dose of 200 kg ha⁻¹ was the most economically viable alternative, with an average EP of 1.41 dollars per dollar invested and an average net economic benefit of 2,651.5 USD ha⁻¹.

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