Comparación de 2 formas de fertilización en cultivo de maíz variedad DK 7500, La Troncal-Ecuador

Rodríguez, José Humberto Vera; Landin, Wilson Eder Cepeda; Galarza, Felipe Abrahán Espejo; Herrera, Gustavo Elicio Cano; Cárdenas, Alexandra Del Roció Balón; Correa, José David Granda; Orozco, Juan Carlos Delgado

doi:10.5377/rci.v26i01.9892

Cienc. Intercult.

2020

DOI: 10.5377/rci.v26i01.9892

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Comparación de 2 formas de fertilización en cultivo de maíz variedad DK 7500, La Troncal-Ecuador

José Humberto Vera Rodríguez

Wilson Eder Cepeda Landin

Felipe Abrahán Espejo Galarza³

et al.

Abstract: Fue evaluado el efecto de 2 formas de fertilización vía edáfica en maíz (Zea mayz L.) variedad DK 7500, en la hacienda Las Mercedes La Troncal-Ecuador, los tratamientos fueron: T1= Fertilizante enriquecido Supermagro: día 8 (25%), día 23 (25%), día 38 (50%); T2= Fertilizante convencional 30 g/planta: día 8 (8-20-20% NPK), día 23 (15-3-20% NPK), día 38 (21-0-0-24% NPK), sobre la (Altura de planta 30, 60, 90 DDS (cm); Altura inserción mazorca 70 DDS (cm); Longitud mazorca (cm); Diámetro mazorca (cm); Hil… Show more

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Cited by 3 publications

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Comparison of weed control methods in rice in the rainy and dry seasons

García,

Parrales,

Villón

et al. 2024

RevFacAgron(LUZ)

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Integrated weed management strategies are crucial to reduce crop production costs. The objective was to compare weed control techniques according to their efficiency and profitability in rice cultivation during the rainy and dry seasons. It was carried out under the quasi-experimental modality with the Student's t-test under a descriptive research type. Structured questionnaires were administered to 70 rice farmers in the area. Weeds were identified in areas every 10 m² within the rice crop, 10 and 15 days after sowing. The efficiency (E) of weed management in rice crops was calculated by applying the formula % efficiency=1 MP/Mt*100. The results showed that manual weeding has a monthly frequency, being used both in the rainy season (40 %) and in the dry season (44 %). The frequency of herbicide application was adjusted to the crop stage in the rainy season (39 %) and in the dry season (46 %). The efficiency (E) using the mechanical method was below one month during the rainy and dry seasons, registering 43%. Manual weeding showed an E of 49 % in the rainy season and 42 % in the dry season for up to 30 days. The combination of herbicides: Metsulfuron-methyl + Quinclorac; pyrazosulfuron-ethyl + Quinclorac, exhibited an E greater than 80 %, for more than 30 days in both seasons. The highest profitability was in the rainy season, thus presenting mechanized control USD 0.09 in rainfall and USD 0.04 in drought, chemical control USD 0.09 in rainfall and USD 0.07 in drought, and manual weeding USD 0.10 in rainfall and USD 0.06 in drought, for every dollar spent during the cultivation of rice. Keywords: weed control, control effectiveness, integrated weed management, profitability, economic valuation.

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Comparison of weed control methods in rice in the rainy and dry seasons

García,

Parrales,

Villón

et al. 2024

RevFacAgron(LUZ)

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Productive and economic potential of the application of biofertilizer in hybrid corn DAS 3383

Vera,

Barzallo,

Villamar

et al. 2024

RevFacAgron(LUZ)

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The excessive and inappropriate use of synthetic fertilizers has the potential to cause significant environmental and economic issues. The utilization of biofertilizers represents a sustainable and environmentally friendly alternative for the enhancement of crop productivity. Accordingly, the present study evaluated the productive and economic behavior of applying biofertilizers on hybrid corn DAS 3383 under a completely random block design, with five treatments and three repetitions. The following treatments were employed: a control treatment devoid of any fertilization (CONTROL), a conventional treatment comprising NPK fertilization (NPK), a treatment incorporating 5 % biofertilizer (5BIO), a treatment incorporating 15 % biofertilizer (15BIO), and a treatment incorporating 25 % biofertilizer (25BIO). At the 90-day mark, the NPK treatment exhibited the greatest plant height (272.81 cm), while at the 108-day interval, the cob insertion height (170.40 cm) was also the highest. However, the 25BIO treatment yielded the most optimal results in terms of cob length (14.29 cm), diameter (6.07 cm), 1,000-grain weight (31.70 g), and yield (9 t.ha-1). This treatment also demonstrated the highest net benefit ($2,019.10) and favorable profitability (72 %) compared to the other treatments. The results of the orthogonal contrast analysis indicate that there are significant linear effects for the majority of variables, with no discernible quadratic effects. This evidence substantiates the potential of biofertilizers in enhancing maize crop productivity. By repurposing organic waste from the agricultural sector and employing it as an alternative to chemical fertilizers, these findings contribute to the advancement of more sustainable and profitable agricultural practices. Keywords: organic fertilizer, genotype, seed, organic waste, profitability.

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Rendimiento de Maíz en Sistema de Callejones de Inga spp. con Diferentes Dosis de Fertilizantes Naturales

Catari-Yujra

Guzman-Moreno

Hands

et al. 2022

(Rev. iberoam. bioecon. cambio clim.)

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Los tratamientos se establecieron en la estación experimental del Centro Universitario Regional del Litoral Atlántico (CURLA, UNAH), La Ceiba, Atlántida, Honduras, se evaluó la respuesta en rendimiento del cultivo de maíz (Zea mays L.), al sistema de callejones de guama (Inga spp.), con la suplementación de fertilizantes de sulfato de potasio más magnesio (K2SO4 + Mg) en dosis de 0, 20, 40 kg·ha-1 y roca fosfórica (RF) con dosis de 0, 20, 40, 80 kg de RF·ha-1, con cuatro repeticiones por tratamiento. Previo a la siembra se aplicó a razón de 2 ton·ha-1 de cal dolomítica (Ca3(PO4)2CaF2). El aporte de Nitrógeno(N) fue suministrado por el sistema Inga spp. En el año 2014 el mayor rendimiento obtenido en las parcelas de maíz fue significativo, con un rendimiento promedio de 1,645 kg·ha-1, los mejores tratamientos fueron: K2SO4 + Mg y de RF, con la mayor dosis suplementada (20, 40 y 80) kg·ha-1, del mismo año. El alto rendimiento promedio del cultivo durante el primer año, su estabilización durante los dos años siguientes, y las cero aplicaciones de fertilizantes nitrogenados, proporcionaron los indicios de la disponibilidad del Nitrógeno del sistema de siembra en callejones de Inga spp.

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Comparación de 2 formas de fertilización en cultivo de maíz variedad DK 7500, La Troncal-Ecuador

Cited by 3 publications

References 5 publications

Comparison of weed control methods in rice in the rainy and dry seasons

Comparison of weed control methods in rice in the rainy and dry seasons

Productive and economic potential of the application of biofertilizer in hybrid corn DAS 3383

Rendimiento de Maíz en Sistema de Callejones de Inga spp. con Diferentes Dosis de Fertilizantes Naturales

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