Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees
Two irrigation systems were used to compare nitrogen uptake efficiency in citrus trees and to evaluate the NO3− runoff in «Navelina» orange trees [Citrus sinensis (L.) Osbeck] on Carrizo citrange rootstock (Citrus sinensis × Poncirus trifoliata Raf.). These were fertilized with 125 g N as labelled K...
| Autores principales: | , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
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Elsevier
2020
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.11939/6579 https://www.sciencedirect.com/science/article/abs/pii/S0176161704705386 |
| _version_ | 1855032452099080192 |
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| author | Quinones, Ana Banuls, Josefina Primo-Millo, Eduardo Legaz, Francisco |
| author_browse | Banuls, Josefina Legaz, Francisco Primo-Millo, Eduardo Quinones, Ana |
| author_facet | Quinones, Ana Banuls, Josefina Primo-Millo, Eduardo Legaz, Francisco |
| author_sort | Quinones, Ana |
| collection | ReDivia |
| description | Two irrigation systems were used to compare nitrogen uptake efficiency in citrus trees and to evaluate the NO3− runoff in «Navelina» orange trees [Citrus sinensis (L.) Osbeck] on Carrizo citrange rootstock (Citrus sinensis × Poncirus trifoliata Raf.). These were fertilized with 125 g N as labelled K15NO3 and grown outdoors in containers filled with a sand-loamy soil. Two groups of 3 trees received this N dose either in five equally split applications by a flooding irrigation system or in 66 applications by drip. Trees were harvested at the end of the vegetative cycle (December) and the isotopic ratios of 15N/14N were measured in the soil-plant system. The N uptake efficiency of the whole tree was higher with drip irrigation (75 percnt;) than with flooding system (64 percnt;). In the 0-90 cm soil profile, the N immobilized in the organic fraction was similar for both irrigation methods (around 13 percnt;), whereas the N retained as NO3− was 1 percnt; of the N applied under drip and 10 percnt; under flooding. In the last case, most of NO3− remained under root system and it could be lost to leaching either by heavy rainfalls or excessive water applications. These results showed that a drip irrigation system was more efficient for improving water use and N uptake from fertilizer, in addition to potentially reduced leaching losses. |
| format | article |
| id | ReDivia6579 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | ReDivia65792025-04-25T14:47:24Z Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees Quinones, Ana Banuls, Josefina Primo-Millo, Eduardo Legaz, Francisco Nitrogen fertilization Nitrogen isotope F61 Plant physiology - Nutrition Citrus Drip irrigation Flooding Two irrigation systems were used to compare nitrogen uptake efficiency in citrus trees and to evaluate the NO3− runoff in «Navelina» orange trees [Citrus sinensis (L.) Osbeck] on Carrizo citrange rootstock (Citrus sinensis × Poncirus trifoliata Raf.). These were fertilized with 125 g N as labelled K15NO3 and grown outdoors in containers filled with a sand-loamy soil. Two groups of 3 trees received this N dose either in five equally split applications by a flooding irrigation system or in 66 applications by drip. Trees were harvested at the end of the vegetative cycle (December) and the isotopic ratios of 15N/14N were measured in the soil-plant system. The N uptake efficiency of the whole tree was higher with drip irrigation (75 percnt;) than with flooding system (64 percnt;). In the 0-90 cm soil profile, the N immobilized in the organic fraction was similar for both irrigation methods (around 13 percnt;), whereas the N retained as NO3− was 1 percnt; of the N applied under drip and 10 percnt; under flooding. In the last case, most of NO3− remained under root system and it could be lost to leaching either by heavy rainfalls or excessive water applications. These results showed that a drip irrigation system was more efficient for improving water use and N uptake from fertilizer, in addition to potentially reduced leaching losses. 2020-09-02T08:29:24Z 2020-09-02T08:29:24Z 2003 article publishedVersion Quiñones, A., Bañuls, J., Millo, E. P., & Legaz, F. (2003). Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees. Journal of plant physiology, 160(12), 1429-1434. 0176-1617 http://hdl.handle.net/20.500.11939/6579 10.1078/0176-1617-01018 https://www.sciencedirect.com/science/article/abs/pii/S0176161704705386 en Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ closedAccess Elsevier electronico |
| spellingShingle | Nitrogen fertilization Nitrogen isotope F61 Plant physiology - Nutrition Citrus Drip irrigation Flooding Quinones, Ana Banuls, Josefina Primo-Millo, Eduardo Legaz, Francisco Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees |
| title | Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees |
| title_full | Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees |
| title_fullStr | Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees |
| title_full_unstemmed | Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees |
| title_short | Effects of 15N application frequency on nitrogen uptake efficiency in Citrus trees |
| title_sort | effects of 15n application frequency on nitrogen uptake efficiency in citrus trees |
| topic | Nitrogen fertilization Nitrogen isotope F61 Plant physiology - Nutrition Citrus Drip irrigation Flooding |
| url | http://hdl.handle.net/20.500.11939/6579 https://www.sciencedirect.com/science/article/abs/pii/S0176161704705386 |
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