Monitoring Plant Status and Fertilization Strategy through Multispectral Images

A crop monitoring system was developed for the supervision of organic fertilization status on tomato plants at early stages. An automatic and nondestructive approach was used to analyze tomato plants with different levels of water-soluble organic fertilizer (3 + 5 NK) and vermicompost. The evaluatio...

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Main Authors: Matheus Cardim Ferreira Lima, Anne Krus, Constantino Valero, Antonio Barrientos, Jaime del Cerro, Juan Jesús Roldán-Gómez
Format: Article
Language:English
Published: MDPI AG 2020-01-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/2/435
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author Matheus Cardim Ferreira Lima
Anne Krus
Constantino Valero
Antonio Barrientos
Jaime del Cerro
Juan Jesús Roldán-Gómez
author_facet Matheus Cardim Ferreira Lima
Anne Krus
Constantino Valero
Antonio Barrientos
Jaime del Cerro
Juan Jesús Roldán-Gómez
author_sort Matheus Cardim Ferreira Lima
collection DOAJ
description A crop monitoring system was developed for the supervision of organic fertilization status on tomato plants at early stages. An automatic and nondestructive approach was used to analyze tomato plants with different levels of water-soluble organic fertilizer (3 + 5 NK) and vermicompost. The evaluation system was composed by a multispectral camera with five lenses: green (550 nm), red (660 nm), red edge (735 nm), near infrared (790 nm), RGB, and a computational image processing system. The water-soluble fertilizer was applied weekly in four different treatments: (T0: 0 mL, T1: 6.25 mL, T2: 12.5 mL and T3: 25 mL) and the vermicomposting was added in Weeks 1 and 5. The trial was conducted in a greenhouse and 192 images were taken with each lens. A plant segmentation algorithm was developed and several vegetation indices were calculated. On top of calculating indices, multiple morphological features were obtained through image processing techniques. The morphological features were revealed to be more feasible to distinguish between the control and the organic fertilized plants than the vegetation indices. The system was developed in order to be assembled in a precision organic fertilization robotic platform.
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spelling doaj.art-a8ad6cfd8e764bb88b19ae7ab4803c132022-12-22T04:09:28ZengMDPI AGSensors1424-82202020-01-0120243510.3390/s20020435s20020435Monitoring Plant Status and Fertilization Strategy through Multispectral ImagesMatheus Cardim Ferreira Lima0Anne Krus1Constantino Valero2Antonio Barrientos3Jaime del Cerro4Juan Jesús Roldán-Gómez5Department of Agroforest Ecosystems, ETSI Agrónomos, Universidad Politécnica de Valencia, 46022 Valencia, SpainDepartment of Agroforest Engineering, ETSI Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040 Madrid, SpainDepartment of Agroforest Engineering, ETSI Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, 28040 Madrid, SpainCentre for Automation and Robotics (CSIC-UPM), 28006 Madrid, SpainCentre for Automation and Robotics (CSIC-UPM), 28006 Madrid, SpainCentre for Automation and Robotics (CSIC-UPM), 28006 Madrid, SpainA crop monitoring system was developed for the supervision of organic fertilization status on tomato plants at early stages. An automatic and nondestructive approach was used to analyze tomato plants with different levels of water-soluble organic fertilizer (3 + 5 NK) and vermicompost. The evaluation system was composed by a multispectral camera with five lenses: green (550 nm), red (660 nm), red edge (735 nm), near infrared (790 nm), RGB, and a computational image processing system. The water-soluble fertilizer was applied weekly in four different treatments: (T0: 0 mL, T1: 6.25 mL, T2: 12.5 mL and T3: 25 mL) and the vermicomposting was added in Weeks 1 and 5. The trial was conducted in a greenhouse and 192 images were taken with each lens. A plant segmentation algorithm was developed and several vegetation indices were calculated. On top of calculating indices, multiple morphological features were obtained through image processing techniques. The morphological features were revealed to be more feasible to distinguish between the control and the organic fertilized plants than the vegetation indices. The system was developed in order to be assembled in a precision organic fertilization robotic platform.https://www.mdpi.com/1424-8220/20/2/435multispectral imagecomputer visionprecision agriculturevegetation indicesmorphological features
spellingShingle Matheus Cardim Ferreira Lima
Anne Krus
Constantino Valero
Antonio Barrientos
Jaime del Cerro
Juan Jesús Roldán-Gómez
Monitoring Plant Status and Fertilization Strategy through Multispectral Images
Sensors
multispectral image
computer vision
precision agriculture
vegetation indices
morphological features
title Monitoring Plant Status and Fertilization Strategy through Multispectral Images
title_full Monitoring Plant Status and Fertilization Strategy through Multispectral Images
title_fullStr Monitoring Plant Status and Fertilization Strategy through Multispectral Images
title_full_unstemmed Monitoring Plant Status and Fertilization Strategy through Multispectral Images
title_short Monitoring Plant Status and Fertilization Strategy through Multispectral Images
title_sort monitoring plant status and fertilization strategy through multispectral images
topic multispectral image
computer vision
precision agriculture
vegetation indices
morphological features
url https://www.mdpi.com/1424-8220/20/2/435
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AT antoniobarrientos monitoringplantstatusandfertilizationstrategythroughmultispectralimages
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