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Publications
Publications (15)
This study aims to determine whether Hass avocado irrigation can be triggered based on the surface soil water content (SSWC). To address this question, the soil water dynamics from three Hass avocado orchard plots located in Valle del Cauca (Colombia) was simulated using a model provided by Hydrus-1D software, which was calibrated through the genet...
Under tropical conditions, Hass avocado irrigation is a controversial issue due to insufficient scientific evidence. The rapid progression of technological advances and its incorporation in agriculture have expanded options to improve the irrigation scheduling (IS) of Hass avocado. The concept featuring those technological advances in agriculture i...
La variabilidad espacial del suelo es un factor importante para entender los cambios de las variables de respuesta en experimentos agrícolas. El muestreo de suelos se ejecuta con base en un patrón espacial, el cual puede ser aleatorio o sistemático. El objetivo de este trabajo fue validar un nuevo algoritmo para generar patrones espaciales de muest...
The primary natural source of water for the Hass avocado crop in the tropics is precipitation. However, this is insufficient to provide most crops’ water requirements due to the spatial and temporal variability. This study aims to demonstrate that Hass avocado requires irrigation in Colombia, and this is done by analyzing the dynamics of local prec...
Las trayectorias de concentración representativa (RCP por sus siglas en inglés) y los modelos de circulación global (GCM por sus siglas en inglés) proyectan cambios en la temperatura y precipitación en el planeta tierra asociados al cambio climático. Esta situación es una de las principales amenazas para la disponibilidad de agua para la agricultur...
Errors in fertilizer application using a fixed-rate fertilization system in sugarcane were compared with those of a conventional system (i.e. using a fertilizer without the fixed-rate system). Before the sugarcane growers introduce the technique of Variable Rate Technology (VRT) they need to know that a constant application rate is guaranteed under...
We conducted a technical study in 244,000 ha planted with sugarcane located in the Cauca River Valley (Colombia) to define the number, location, characteristics of GNSS base stations and compatibility of GNSS receivers, in addition to evaluate radiofrequency (RF) and cellular signal coverage. We found that the design should consists of 17 sites whe...
This study aimed to evaluate the effect of traffic control strategies for harvesting sugarcane. A randomized complete-block design was used with four treatments that resulted from the interaction of two factors of variation (cane harvester and tractor coupling), with and without auto-guidance systems. The experiment was conducted on a 6.6-ha commer...
In crops such as sugarcane, globally one of the field practices to increase sugar production is the application by air of maturing agents using aircrafts as light planes, ultralight aircraft or helicopters equipped with sprayers and data recording technologies using global navigation satellite systems. This paper describes the use and construction...
A study was conducted on three sugarcane plots located in the Cauca river valley, the main cane producing area of Colombia, to address a question that is inherent to the interpretation of maps of spatial variability of sugarcane productivity: What factors induce variability in crop productivity at the plot level? The percentage weight of soil physi...
Using aerial imagery coupled low altitude flight systems has created a new challenge in the digital processing
of images. Some software has been developed to be used with a large volume of information generated after
each flight. The following paper presents a basic methodology for capturing multispectral aerial images and
further processing with s...
In crops such as sugarcane, globally one of the field practices to increase sugar
production is the application by air of maturing agents using aircrafts as light planes,
ultralight aircraft or helicopters equipped with sprayers and data recording
technologies using global navigation satellite systems. This paper describes the use and
construction...
El presente trabajo tiene como objetivo mostrar algunos conceptos generales de los vehículos aéreos no tripulados o UAV (Unmanned Aerial Vehicle), también llamados Drones, y su uso en la agricultura, específicamente en el cultivo de la caña de azúcar. Igualmente el artículo aborda la diferencia que existe entre los sistemas de ala fija y ala rotato...
El objetivo de este trabajo fue desarrollar una herramienta (rutina) para automatizar la elaboración de mapas de variabilidad espacial utilizando el software estadístico libre "R" con tres módulos interconectados. Se comparó tiempo de procesamiento y error de predicción de 102 mapas generados por la rutina y por el software ArcGis ®. Para esto se u...
Desarrollo de una herramienta en ambiente SIG para el control de calidad en labores agrícolas de precisión caso: Aplicación de agroquímicos por vía aérea. Resumen Una de las prácticas para incrementar la producción de azúcar en cultivos como la caña de azúcar a nivel mundial, es la aplicación por vía aérea de productos agroquímicos como son los mad...
