9 Hits in 9.3 sec

Multi-Sensors Remote Sensing Applications for Assessing, Monitoring, and Mapping NPK Content in Soil and Crops in African Agricultural Land

Khalil Misbah, Ahmed Laamrani, Keltoum Khechba, Driss Dhiba, Abdelghani Chehbouni
2021 Remote Sensing  
To attain a higher crop yield while preserving the environment, appropriate management of macronutrients (i.e., nitrogen (N), phosphorus (P) and potassium (K)) and crops are of critical prominence.  ...  ., 2008–2021) in hyperspectral imaging technology and applications in monitoring macronutrients status for crops were reviewed.  ...  The manuscript has been checked for spelling and grammar by the UM6P English language specialist team.  ... 
doi:10.3390/rs14010081 fatcat:2mflntalujcvzlsw6fcwrauseq

Evaluation of the PROSAIL Model Capabilities for Future Hyperspectral Model Environments: A Review Study

Katja Berger, Clement Atzberger, Martin Danner, Guido D'Urso, Wolfram Mauser, Francesco Vuolo, Tobias Hank
2018 Remote Sensing  
This paper reviews the widely applied coupled PROSPECT and SAIL radiative transfer models (PROSAIL), regarding their suitability for the retrieval of biophysical and biochemical variables in the context  ...  of agricultural crop monitoring.  ...  The founding sponsors had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, and in the decision to publish the results.  ... 
doi:10.3390/rs10010085 fatcat:6pepgyohvnhoredguwdyvn6xtq

Retrieval of aboveground crop nitrogen content with a hybrid machine learning method

Katja Berger, Jochem Verrelst, Jean-Baptiste Féret, Tobias Hank, Matthias Wocher, Wolfram Mauser, Gustau Camps-Valls
2020 International Journal of Applied Earth Observation and Geoinformation  
Use of well-known protein absorption bands from the literature showed comparative results. Finally, the heteroscedastic GP model was successfully applied on airborne hyperspectral data for N mapping.  ...  Moreover, most studies solely relied on the correlation of chlorophyll content with nitrogen, and thus neglected the fact that most N is bound in proteins.  ...  Whereas N deficiency leads to a decrease of photosynthetic assimilation and thus crop yield per area, both in terms of quantity and quality (Chlingaryan et al., 2018; Jay et al., 2017) , excessive N fertilization  ... 
doi:10.1016/j.jag.2020.102174 fatcat:ycasxkxp2neifjy6aucl4tvqp4

The Senescence (Stay-Green)—An Important Trait to Exploit Crop Residuals for Bioenergy

Munaiz, Martínez, Kumar, Caicedo, Ordás
2020 Energies  
Initially described as a single locus recessive trait, SG was shortly after reported as a quantitative trait governed by complex physiological and metabolic networks including chlorophyll efficiency, nitrogen  ...  In this review, we present a comprehensive revisit of past research and advances developed on the stay-green (SG) paradigm.  ...  Acknowledgments: Susana Martinez acknowledges the support from the State Research Agency of the Ministry of Economy, Industry and Competitiveness of the Government of Spain, which finances through the  ... 
doi:10.3390/en13040790 fatcat:didj6ozqlvdstmistq34pfmtim

Guidelines on the improvement for precision agriculture v2

Martin Siklar, David Kolitzus, Carina Jank, Stefanie Rohland, Leigh Mutton
2020 Zenodo  
This document describes gaps and recommendations for the improvement of EO data use in precision agriculturederived from an intensive use casespecific assessment of related literature and scientific papers  ...  data was combined with a radiative transfer model (PROSAIL) to estimate leaf Area Index (LAI) and biomass.  ...  who want to identify problematic areas on their fields (Patil et al., 2018) .Classified images of the measured disease index derived from airborne Pushbroom Hyperspectral Images of a trial site in 2003  ... 
doi:10.5281/zenodo.4247324 fatcat:nqttkdjosvg7jlvplwpdjzoto4

The acquisition of Hyperspectral Digital Surface Models of crops from UAV snapshot cameras

Helge Aasen, Georg Bareth
digital surface models (HS DSMs) generated with UAV snapshot cameras are a representation of a surface in 3D space linked with hyperspectral information emitted and reflected by the objects covered by  ...  This thesis develops a new approach to capture information about agricultural crops by utilizing advances in the field of robotics, sensor technology, computer vision and photogrammetry: Hyperspectral  ...  Generating 3D Hyperspectral Information with Lightweight UAV Snapshot Cameras for Vegetation Monitoring: From Camera Calibration to Quality Assurance The authors declare no conflict of interest.  ... 
doi:10.18716/kups.6944 fatcat:adlvtlwa2rfa3pzvktt2gi2nnq

Cross-Covariance Models [chapter]

2017 Encyclopedia of GIS  
Acknowledgements We would like to thank Keith Harries, Dan Helms, Chris Maxwell and Susan Wernicke-Smith for providing comments on this entry in a very short time.  ...  The views expressed in this paper are those of the authors, and do not represent the official positions or policies of the National Institute of Justice or the US Department of Justice.  ...  Some devices are now relying on machine learning algorithms to learn how they are being used.  ... 
doi:10.1007/978-3-319-17885-1_100240 fatcat:2ojzb7es7rhofinw4abol6dgc4

2nd International Plant Spectroscopy Conference (IPSC - 2019)

Hartwig Schulz, Catharina Blank, Christoph Böttcher, Benjamin Fürstenau, Andrea Krähmer, Torsten Meiners, David Riewe
This study was financially supported by INRA and MetaboHUB project (ANR-11-INBS-0010), as well as the German Federal Ministry of Education and Research (BMBF 0315529) and the European Union for regional  ...  reference ANR-10-LABX-001-01 Labex Agro and coordinated by Agropolis Fondation under the reference ID 1603-001.  ...  In the past, two different types of approaches have established for the estimation of crop parameters from remotely sensed image data: the inversion of physically based radiative transfer models, and empirical-statistical  ... 
doi:10.5073/berjki.2019.204.000 fatcat:yt7rwz5kmngyjeakrg5puxcj64

Memoria 2017-2018 [article]

CSIC-Instituto De Agricultura Sostenible (IAS), Digital.CSIC, Digital.CSIC
| 8 RESULTADOS DESTACADOS | SCIENTIFIC HIGHLIGHTS | 10 DEPARTAMENTO DE AGRONOMÍA | AGRONOMY | 22 DEPARTAMENTO DE MEJORA GENÉTICA VEGETAL | PLANT BREEDING | 38 DEPARTAMENTO DE PROTECCIÓN DE CULTIVOS | CROP  ...  DISTINCTIONS | 120 ACTOS Y CONFERENCIAS | EVENTS AND CONFERENCES| 122 EL IAS EN LOS MEDIOS | THE IAS IN THE MEDIA | 130 SERVICIOS CIENTÍFICO-TÉCNICOS |  ...  February 11 is the Day of Women and Girls in Science. For this reason, in 2018 the CSIC launched the #TheyAreCSIC campaign to make visible and raise awareness about the role of women in science.  ... 
doi:10.20350/digitalcsic/10830 fatcat:6ehwm3hrbzbrzaovidi5jeij64