A cost-effective canopy temperature measurement system for precision agriculture: a case study on sugar beet

Martínez, Julián Lebrato; Egea, Gregorio; Agüera, J.; Pérez-Ruiz, M.

doi:10.1007/s11119-016-9470-9

Cited by 68 publications

(40 citation statements)

References 31 publications

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“…Some drawbacks of traditional thermal imaging techniques include the camera cost and resolution, and the time and labor needed to implement the techniques [32]. Sensor resolution must be high enough when used for remote acquisition or the precision of water stress assessment will be reduced.…”

Section: Introductionmentioning

confidence: 99%

“…Sensor resolution must be high enough when used for remote acquisition or the precision of water stress assessment will be reduced. IR array sensors, used for proximal acquisition, can overcome these limitations, greatly reducing the cost and doubling the accuracy in temperature measurements from 1 • C to 0.5 • C, as reported by Martínez et al [32]. The use of CWSI also enables the automation of the data acquisition as reference measurements are not needed, allowing for the installation of the sensor in vehicles or autonomous robots, which eases the mapping of the orchard.…”

Section: Introductionmentioning

confidence: 99%

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A New Low-Cost Device Based on Thermal Infrared Sensors for Olive Tree Canopy Temperature Measurement and Water Status Monitoring

et al. 2020

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In recent years, many olive orchards, which are a major crop in the Mediterranean basin, have been converted into intensive or super high-density hedgerow systems. This configuration is more efficient in terms of yield per hectare, but at the same time the water requirements are higher than in traditional grove arrangements. Moreover, irrigation regulations have a high environmental (through water use optimization) impact and influence on crop quality and yield. The mapping of (spatio-temporal) variability with conventional water stress assessment methods is impractical due to time and labor constraints, which often involve staff training. To address this problem, this work presents the development of a new low-cost device based on a thermal infrared (IR) sensor for the measurement of olive tree canopy temperature and monitoring of water status. The performance of the developed device was compared to a commercial thermal camera. Furthermore, the proposed device was evaluated in a commercially managed olive orchard, where two different irrigation treatments were established: a full irrigation treatment (FI) and a regulated deficit irrigation (RDC), aimed at covering 100% and 50% of crop evapotranspiration (ETc), respectively. Predawn leaf water potential (ΨPD) and stomatal conductance (gs), two widely accepted indicators for crop water status, were regressed to the measured canopy temperature. The results were promising, reaching a coefficient of determination R2 ≥ 0.80. On the other hand, the crop water stress index (CWSI) was also calculated, resulting in a coefficient of determination R2 ≥ 0.79. The outcomes provided by the developed device support its suitability for fast, low-cost, and reliable estimation of an olive orchard’s water status, even suppressing the need for supervised acquisition of reference temperatures. The newly developed device can be used for water management, reducing water usage, and for overall improvements to olive orchard management.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Low-Cost Device Based on Thermal Infrared Sensors for Olive Tree Canopy Temperature Measurement and Water Status Monitoring

et al. 2020

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“…Por ello, los vehículos aéreos no tripulados (UAVs), capaces de portar sensores y cámaras de muy alta resolución, proporcionan una alternativa que puede ser implementada rápidamente y de forma barata [14]. Estos tipos de vehículos generan una gran cantidad de datos, generalmente en forma de imágenes o secuencias de vídeo, y permiten patrones de vuelo flexibles y adaptados a las tareas que se les demanda [15].…”

Section: Introductionunclassified

Estimación de producción en cítricos usando técnicas de aprendizaje automático

Apolo¹,

Guanter²,

Egea³

et al. 2019

Congreso Ibérico De Agroingeniería

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“…UAVs are routinely being used to: estimate tree crown diameters, tree fall and canopy openness (Inoue et al 2014;Panagiotidis et al 2017;Perroy et al 2017); detect and map invasive species (Gonzalez et al 2016;Müllerová et al 2017); detect nutrient and water deficiencies in agricultural crops (Gago et al 2014;Salamí et al 2014;Martínez et al 2017); and assist in the management of insect pests (Faiçal et al 2014;Näsi et al 2015;Severtson et al 2016). UAVs are also being trialled to deliver merchandise from retailers, such as Amazon's "Prime Air" service (Amazon 2017).…”

Section: Introductionmentioning

confidence: 99%

The potential of using Unmanned Aerial Vehicles (UAVs) for precision pest control of possums (Trichosurus vulpecula)

Morley¹,

Braodley²,

Hartley³

et al. 2017

ReEco

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Unmanned Aerial Vehicles (UAVs) and remote image sensing cameras have considerable potential for use in pest control operations. UAVs equipped with remote sensing cameras could be flown over forests and remnant bush sites, particularly those not currently receiving any pest control, to record the unique spectral signature of the vegetation and to detect the presence of possums (Trichosurus vulpecula) and the damage they cause. UAVs could then be deployed to precisely distribute either toxins or kill traps to these identified locations. Predator-free 2050 is an ambitious policy announced by the New Zealand Government where several pests, including possums, are to be eradicated by the year 2050. In order to achieve this goal, pests must be identified, targeted and controlled, requiring creative and novel ideas. UAVs provide flexibility, can fly in remote and difficult terrain, and are considerably cheaper to purchase and operate than the planes and helicopters currently used in conventional aerial pest control operations. Current challenges associated with UAVs include payload capacity, battery limitations, weather, and flying restrictions. However, these issues are rapidly being resolved with sophisticated technological advances and improved regulations. A directed and targeted approach using UAVs is an additional and novel tool in the pest management toolbox that could significantly reduce pest control costs, cover inaccessible areas not receiving any pest management, and will help New Zealand advance towards its predator-free aspiration by 2050.

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A cost-effective canopy temperature measurement system for precision agriculture: a case study on sugar beet

Cited by 68 publications

References 31 publications

A New Low-Cost Device Based on Thermal Infrared Sensors for Olive Tree Canopy Temperature Measurement and Water Status Monitoring

A New Low-Cost Device Based on Thermal Infrared Sensors for Olive Tree Canopy Temperature Measurement and Water Status Monitoring

Estimación de producción en cítricos usando técnicas de aprendizaje automático

The potential of using Unmanned Aerial Vehicles (UAVs) for precision pest control of possums (Trichosurus vulpecula)

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