Efecto del establecimiento de sistemas de rotación para el cultivo de la papa sobre las características químicas y físicas del suelo

Díaz, Ruy Edeymar Vargas; Ortiz, Wilmar Alexander Wilches; Malagón, Eduardo María Espitia

doi:10.29166/siembra.v9i2.4023

SIEMBRA

2022

DOI: 10.29166/siembra.v9i2.4023

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Efecto del establecimiento de sistemas de rotación para el cultivo de la papa sobre las características químicas y físicas del suelo

Ruy Edeymar Vargas Díaz

Wilmar Alexander Wilches Ortiz

Eduardo María Espitia Malagón

Abstract: La implementación de rotación de cultivos puede modificar las características físicas y químicas de los suelos y ha sido recomendada para mejorar la calidad de este. En Colombia, algunos productores implementan diferentes sistemas de rotación en los cultivos de papa, siendo importante conocer el potencial que pueden aportar a estos sistemas productivos. El objetivo de este trabajo fue evaluar las características físicas y químicas del suelo después de utilizar esquemas de rotación de cultivos. Se evaluaron tre… Show more

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Analysis and spatial prediction of water retention curves in two types of soil

Cortés-Delgadillo,

Camacho Tamayo,

Giraldo

2024

Rev. bras. eng. agríc. ambient.

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Soil is a medium that stores and transfers air, water, nutrients and heat to microorganisms and plants. Its water storage capacity is studied by analysing water retention curves (WRCs), which establish the relationship between soil water content and the force with which water is retained. The objective of this work was to evaluate the capacity of functional geostatistics in predicting the spatial distribution of water retention curves in two types of soils. Experimental areas with two types of soil, Andisol and Oxisol, were selected, and a regular grid of 75 sites was established, from which water retention curves were obtained at two depths. The curves were subjected to geostatistical functional analysis (GF), and the applicability of this method was evaluated by obtaining the usable water table (LAA) and comparing the results with experimental data obtained using traditional methods. Based on cross-validation, it was verified that GF produced a better fit for the Andisol since the coefficient of determination between the LAA values for the measured data and predictions was high, with an R2 of 99%; however, the proposed methodology was also reliable for the Oxisol, since an R2 of 94% was obtained at the two depths studied.

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Analysis and spatial prediction of water retention curves in two types of soil

Cortés-Delgadillo,

Camacho Tamayo,

Giraldo

2024

Rev. bras. eng. agríc. ambient.

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Rotation as a strategy to increase the sustainability of potato crop1

Camacho,

Ortiz,

Diaz

et al. 2024

Pesqui. Agropecu. Trop.

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Potato cultivation is characterized by a high use of inputs, which results in soil degradation and contamination. Crop rotation is a good practice to counteract these problems. This study aimed to assess the sustainability of three rotation sequences (potato-pea-potato, potato-oat-pea and potato-potato-oat) using the sustainability assessment methodology oriented to agricultural experiments associated with soil management. It was observed that, both environmentally and economically, potato-potato-oat is the most sustainable treatment, while potato-oat-pea is the most socially sustainable. Balancing the three dimensions, potato-potato-oat is the most sustainable treatment, with sustainability index of 0.85, while potato-pea-potato is the least sustainable one, with 0.64. The potato-potato-oat rotation sequence generates a less negative environmental impact, as well as a higher social equity and economic return for the farmer.

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Condiciones agronómicas del cultivo de arroz con imágenes de vehículos aéreos no tripulados

Conforme Ponce,

Rodríguez Mala,

Pacheco Gil

2024

SAPIENTIAE

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La teledetección es una herramienta cada vez más utilizada para mejorar la producción de cultivos en respuesta a la creciente demanda global de alimentos y al impacto del cambio climático en la seguridad alimentaria. El uso de esa herramienta ha permitido monitorear las condiciones de los cultivos mediante el cálculo de índices de vegetación con imágenes multiespectrales. Como objetivo de este trabajo se propuso analizar las condiciones agronómicas del cultivo de arroz bajo diferentes condiciones de fertilización, en un área productiva de la provincia de Manabí. Se capturaron imágenes RGB mediante vuelos fotogramétricos utilizando el dron Phantom 4, las imágenes fueron procesadas y analizadas a través del software PIX4D y se calcularon índices de vegetación RGB (VIgreen, SIVE, GLI, CIVE, ExG). Se compararon los resultados obtenidos para las tres variedades de arroz (Impacto, Elite, SFL11) presentes en el cultivo y los dos tipos de fertilizantes (sintético y orgánico). Los resultados obtenidos muestran que de los 5 índices estudiados el VIgreen (indice normalizado verde rojo) resultó con el mayor potencial para diferenciar tratamientos orgánicos de los sintéticos. Las mayores magnitudes del índice, para las primeras 10 parcelas, se reflejan en los tratamientos sintéticos en el 80 % de los casos, con valores que oscilan entre 0,174137 y 0,1105. El resto de los índices muestran bajo potencial para discriminar los tratamientos sintéticos de los orgánicos. Respecto a las variedades no se encontraron diferencias significativas entre los índices.

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Efecto del establecimiento de sistemas de rotación para el cultivo de la papa sobre las características químicas y físicas del suelo

Cited by 3 publications

References 5 publications

Analysis and spatial prediction of water retention curves in two types of soil

Analysis and spatial prediction of water retention curves in two types of soil

Rotation as a strategy to increase the sustainability of potato crop1

Condiciones agronómicas del cultivo de arroz con imágenes de vehículos aéreos no tripulados

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