Respuesta Agronómica y Económica del King Grass a Diferentes Alturas de Corte y Fertilización Orgánica

Ingrid Alejandra Pinargote-Guerra; Jean Carlos Pita-Zambrano; Miguel Angel Macay-Anchundia

doi:10.70171/q5xbg140

Authors

Ingrid Alejandra Pinargote-Guerra Universidad Técnica Estatal de Quevedo Author https://orcid.org/0009-0003-1279-7459
Jean Carlos Pita-Zambrano Universidad Laica Eloy Alfaro de Manabí Author https://orcid.org/0009-0000-4325-1860
Miguel Angel Macay-Anchundia Universidad Laica Eloy Alfaro de Manabí Author https://orcid.org/0000-0002-4826-7455

DOI:

https://doi.org/10.70171/q5xbg140

Keywords:

biol

Abstract

Justification: The response of King Grass to agronomic management varies according to growing conditions. Objective: To evaluate the phenological development, biomass production, and profitability of King Grass subjected to three cutting heights and three biol doses. Methodology: A randomized complete block design with 12 treatments and three replications was used. Cutting heights were 0, 10, and 20 cm, and biol doses were 9, 18, and 27 ml diluted in 2.5 L of water per plot; a control treatment was included. Plant height, leaf length and width, number of leaves, stem diameter, and number of stems were measured at 15-day intervals; dry matter, green biomass, and profitability were determined at 60 days. Results: The cutting height × fertilization interaction was not significant for phenological variables or biomass. Cutting at 0 cm favored leaf width, number of leaves, and stem diameter, whereas cutting at 20 cm resulted in greater initial plant height and number of stems. The control showed greater leaf length and stem diameter. The highest dry matter content was 27.15% in T11, while T10 produced 13,703.71 kg ha⁻¹ of green biomass and a benefit-cost ratio of 0.59. Conclusion: Biol fertilization did not outperform the control, and cutting at 0 cm provided the best combination of production and profitability.

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