The use of new technologies to monitor and evaluate the management of coffee crops allowed for a significant increase in productivity. Precision coffee farming has leveraged the develop-ment of this commodity by using remote sensing and Unmanned Aerial Vehicles (UAVs). However, the success of coffee farming in the country also resulted from management practices, including liming management in the soils. This study aimed to evaluate the response of coffee seedlings transplanted to areas subjected to deep liming in comparison to conventional (surface) liming, using vegetation indices (VIs) generated by multispectral images acquired using UAVs. The study area was overflown bimonthly by UAVs to measure the plant height, crown diameter, and chlorophyll content in the field. The VIs were generated and compared with the data measured in the field using linear time graphs and a correlation analysis. Linear regression was performed to predict the biophysical parameters as a function of the VIs. A significant difference was found only in the chlorophyll content. Most indices were correlated with the biophysical parameters, particularly the green chlorophyll index (GCI) and the canopy area calculated via vectorization. Therefore, UAVs proved to be effective coffee monitoring tools and can be recommended for coffee producers.

Evaluation of Coffee Plants Transplanted to an Area with Surface and Deep Liming Based on Multispectral Indices Acquired Using Unmanned Aerial Vehicles / Barata, Rafael Alexandre Pena; Ferraz, Gabriel Araújo e Silva; Bento, Nicole Lopes; Soares, Daniel Veiga; Santana, Lucas Santos; Marin, Diego Bedin; Mattos, Drucylla Guerra; Schwerz, Felipe; Rossi, Giuseppe; Conti, Leonardo; Bambi, Gianluca. - In: AGRONOMY. - ISSN 2073-4395. - ELETTRONICO. - 13:(2023), pp. 0-0. [10.3390/agronomy13102623]

Evaluation of Coffee Plants Transplanted to an Area with Surface and Deep Liming Based on Multispectral Indices Acquired Using Unmanned Aerial Vehicles

Marin, Diego Bedin
Conceptualization
;
Rossi, Giuseppe
Methodology
;
Conti, Leonardo
Supervision
;
Bambi, Gianluca
Conceptualization
2023

Abstract

The use of new technologies to monitor and evaluate the management of coffee crops allowed for a significant increase in productivity. Precision coffee farming has leveraged the develop-ment of this commodity by using remote sensing and Unmanned Aerial Vehicles (UAVs). However, the success of coffee farming in the country also resulted from management practices, including liming management in the soils. This study aimed to evaluate the response of coffee seedlings transplanted to areas subjected to deep liming in comparison to conventional (surface) liming, using vegetation indices (VIs) generated by multispectral images acquired using UAVs. The study area was overflown bimonthly by UAVs to measure the plant height, crown diameter, and chlorophyll content in the field. The VIs were generated and compared with the data measured in the field using linear time graphs and a correlation analysis. Linear regression was performed to predict the biophysical parameters as a function of the VIs. A significant difference was found only in the chlorophyll content. Most indices were correlated with the biophysical parameters, particularly the green chlorophyll index (GCI) and the canopy area calculated via vectorization. Therefore, UAVs proved to be effective coffee monitoring tools and can be recommended for coffee producers.
2023
13
0
0
Barata, Rafael Alexandre Pena; Ferraz, Gabriel Araújo e Silva; Bento, Nicole Lopes; Soares, Daniel Veiga; Santana, Lucas Santos; Marin, Diego Bedin; Mattos, Drucylla Guerra; Schwerz, Felipe; Rossi, Giuseppe; Conti, Leonardo; Bambi, Gianluca
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1336714
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