Articles
Soil vineyard variability evaluated with multispectral sensors onboard UAVs
Article number
1409_64
Pages
511 – 516
Language
English
Abstract
The differences in physical and chemical soil characteristics determine plant variability when a vineyard is homogeneously managed (i.e., pruning, training system, irrigation, fertilisation). Water storage capacity determines vine growth and production under deficit irrigation.
The multispectral cameras onboard unmanned aerial vehicles (UAVs) provide high spatial and temporal resolution data.
This data are necessary to detect specific canopy information that helps to determine the complexity of vineyard agroecosystems.
This work focuses on assessing soil variabilityRSQUOs influence on crop development through vegetative indices (VIs) obtained with cameras installed on UAVs.
This study was carried out in 2021 in two areas of a commercial vineyard in Yepes (Spain) with different soil types in terms of effective depth and texture.
During 2021 agronomic parameters like canopy size (profile) and yield were measured.
Data from the multispectral camera were obtained on three dates (June 25, July 20, and August 19), and VIs (NDVI, RVI, and OSAVI) were calculated.
Soil properties determined vine vegetative development and yield.
The greatest vegetative development and yield of vines occurred in vines grown under deeper soils with a higher percentage of clay.
The Vis were significantly different between vines cultivated in different soils.
RVI showed the most significant differences between vines.
These differences were higher on the first flight (June 25) when grapes were at pee-size, suggesting that the phenological stage plays an important role when monitoring the vineyard variability with remote sensing.
The multispectral cameras onboard unmanned aerial vehicles (UAVs) provide high spatial and temporal resolution data.
This data are necessary to detect specific canopy information that helps to determine the complexity of vineyard agroecosystems.
This work focuses on assessing soil variabilityRSQUOs influence on crop development through vegetative indices (VIs) obtained with cameras installed on UAVs.
This study was carried out in 2021 in two areas of a commercial vineyard in Yepes (Spain) with different soil types in terms of effective depth and texture.
During 2021 agronomic parameters like canopy size (profile) and yield were measured.
Data from the multispectral camera were obtained on three dates (June 25, July 20, and August 19), and VIs (NDVI, RVI, and OSAVI) were calculated.
Soil properties determined vine vegetative development and yield.
The greatest vegetative development and yield of vines occurred in vines grown under deeper soils with a higher percentage of clay.
The Vis were significantly different between vines cultivated in different soils.
RVI showed the most significant differences between vines.
These differences were higher on the first flight (June 25) when grapes were at pee-size, suggesting that the phenological stage plays an important role when monitoring the vineyard variability with remote sensing.
Authors
L.K. Atencia, M. Gómez del Campo, R. Hermoso, J. Cámara, A.M. Tarquis
Keywords
soil variability, vineyard, unmanned aerial vehicles (UAVs), vegetation index
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