Analysis of biophysical variables in an onion crop (Allium cepa L.) with nitrogen fertilization by sentinel-2 observations
The production of onions bulbs (Allium cepa L.) requires a high amount of nitrogen. Ac cording to the demand of sustainable agriculture, the information-development and communication technologies allow for improving the efficiency of nitrogen fertilization. In the south of the province of Buenos Air...
| Autores principales: | , , , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
MDPI
2022
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/12894 https://www.mdpi.com/2073-4395/12/8/1884 https://doi.org/10.3390/agronomy12081884 |
| _version_ | 1855036839959724032 |
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| author | Casella, Alejandra An Orden, Luciano Pezzola, Nestor Alejandro Bellaccomo, Maria Carolina Winschel, Cristina Ines Caballero, Gabriel Delegido, Jesus Navas Gracia, Luis Manuel Verrelst, Jochem |
| author_browse | Bellaccomo, Maria Carolina Caballero, Gabriel Casella, Alejandra An Delegido, Jesus Navas Gracia, Luis Manuel Orden, Luciano Pezzola, Nestor Alejandro Verrelst, Jochem Winschel, Cristina Ines |
| author_facet | Casella, Alejandra An Orden, Luciano Pezzola, Nestor Alejandro Bellaccomo, Maria Carolina Winschel, Cristina Ines Caballero, Gabriel Delegido, Jesus Navas Gracia, Luis Manuel Verrelst, Jochem |
| author_sort | Casella, Alejandra An |
| collection | INTA Digital |
| description | The production of onions bulbs (Allium cepa L.) requires a high amount of nitrogen. Ac cording to the demand of sustainable agriculture, the information-development and communication technologies allow for improving the efficiency of nitrogen fertilization. In the south of the province of Buenos Aires, Argentina, between 8000 and 10,000 hectares per year−1 are cultivated in the districts of Villarino and Patagones. This work aimed to analyze the relationship of biophysical variables: leaf area index (LAI), canopy chlorophyll content (CCC), and canopy cover factor (fCOVER), with the nitrogen fertilization of an intermediate cycle onion crop and its effects on yield. A field trial study with different doses of granulated urea and granulated urea was carried out, where biophysical char acteristics were evaluated in the field and in Sentinel-2 satellite observations. Field data correlated well with satellite data, with an R2 of 0.91, 0.96, and 0.85 for LAI, fCOVER, and CCC, respectively. The application of nitrogen in all its doses produced significantly higher yields than the control. The LAI and CCC variables had a positive correlation with yield in the months of November and December.
A significant difference was observed between U250 (62 Mg ha−1) and the other treatments. The
U500 dose led to a yield increase of 27% compared to U250, while the difference between U750 and
U500 was 6%. |
| format | info:ar-repo/semantics/artículo |
| id | INTA12894 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA128942023-04-03T11:45:10Z Analysis of biophysical variables in an onion crop (Allium cepa L.) with nitrogen fertilization by sentinel-2 observations Casella, Alejandra An Orden, Luciano Pezzola, Nestor Alejandro Bellaccomo, Maria Carolina Winschel, Cristina Ines Caballero, Gabriel Delegido, Jesus Navas Gracia, Luis Manuel Verrelst, Jochem Vegetation Index Leaf Area Index Nitrogen Remote Sensing Precision Agriculture Onions Indice de Vegetación Indice de Superfície Foliar Nitrógeno Teledetección Agricultura de Precisión Cebolla Sentinel - 2 Centinela -2 The production of onions bulbs (Allium cepa L.) requires a high amount of nitrogen. Ac cording to the demand of sustainable agriculture, the information-development and communication technologies allow for improving the efficiency of nitrogen fertilization. In the south of the province of Buenos Aires, Argentina, between 8000 and 10,000 hectares per year−1 are cultivated in the districts of Villarino and Patagones. This work aimed to analyze the relationship of biophysical variables: leaf area index (LAI), canopy chlorophyll content (CCC), and canopy cover factor (fCOVER), with the nitrogen fertilization of an intermediate cycle onion crop and its effects on yield. A field trial study with different doses of granulated urea and granulated urea was carried out, where biophysical char acteristics were evaluated in the field and in Sentinel-2 satellite observations. Field data correlated well with satellite data, with an R2 of 0.91, 0.96, and 0.85 for LAI, fCOVER, and CCC, respectively. The application of nitrogen in all its doses produced significantly higher yields than the control. The LAI and CCC variables had a positive correlation with yield in the months of November and December. A significant difference was observed between U250 (62 Mg ha−1) and the other treatments. The U500 dose led to a yield increase of 27% compared to U250, while the difference between U750 and U500 was 6%. Fil: Casella, Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina Fil: Orden, Luciano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina. Universidad Miguel Hernández. Centro de Investigación e Innovación Agroalimentaria y Agroambiental. GIAAMA Reseach Group; España Fil: Pezzola, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Bellaccomo, Maria Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Winschel, Cristina Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina Fil: Caballero, Gabriel. Technological University of Uruguay. Departamento de Montevideo, Uruguay Fil: Delegido, Jesús. Universidad de Valencia. Image Processing Laboratory (IPL); España Fil: Navas Gracia, Luis Manuel. Universidad de Valladolid. Departamento de Ingenieria Agrícola y Forestal; España Fil: Verrelst, Jochem. Universidad de Valencia. Image Processing Laboratory (IPL); España 2022-09-15T14:09:49Z 2022-09-15T14:09:49Z 2022-08-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/12894 https://www.mdpi.com/2073-4395/12/8/1884 2073-4395 https://doi.org/10.3390/agronomy12081884 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf MDPI Agronomy 12 (8) : 1884 (August 2022) |
| spellingShingle | Vegetation Index Leaf Area Index Nitrogen Remote Sensing Precision Agriculture Onions Indice de Vegetación Indice de Superfície Foliar Nitrógeno Teledetección Agricultura de Precisión Cebolla Sentinel - 2 Centinela -2 Casella, Alejandra An Orden, Luciano Pezzola, Nestor Alejandro Bellaccomo, Maria Carolina Winschel, Cristina Ines Caballero, Gabriel Delegido, Jesus Navas Gracia, Luis Manuel Verrelst, Jochem Analysis of biophysical variables in an onion crop (Allium cepa L.) with nitrogen fertilization by sentinel-2 observations |
| title | Analysis of biophysical variables in an onion crop (Allium cepa L.) with nitrogen fertilization by sentinel-2 observations |
| title_full | Analysis of biophysical variables in an onion crop (Allium cepa L.) with nitrogen fertilization by sentinel-2 observations |
| title_fullStr | Analysis of biophysical variables in an onion crop (Allium cepa L.) with nitrogen fertilization by sentinel-2 observations |
| title_full_unstemmed | Analysis of biophysical variables in an onion crop (Allium cepa L.) with nitrogen fertilization by sentinel-2 observations |
| title_short | Analysis of biophysical variables in an onion crop (Allium cepa L.) with nitrogen fertilization by sentinel-2 observations |
| title_sort | analysis of biophysical variables in an onion crop allium cepa l with nitrogen fertilization by sentinel 2 observations |
| topic | Vegetation Index Leaf Area Index Nitrogen Remote Sensing Precision Agriculture Onions Indice de Vegetación Indice de Superfície Foliar Nitrógeno Teledetección Agricultura de Precisión Cebolla Sentinel - 2 Centinela -2 |
| url | http://hdl.handle.net/20.500.12123/12894 https://www.mdpi.com/2073-4395/12/8/1884 https://doi.org/10.3390/agronomy12081884 |
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