Seasonal Changes in Nitrate Uptake Efficiency in Young Potted Citrus Trees
Fertilizer isotope labelling (15N) of young Lane Late potted orange trees with differential N rates at three phenological periods (end of flowering, fruit set and fruit growth) was used to determine patterns of N uptake response and N efficiency (NUE) along the growing cycle. In a first experiment t...
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| Format: | article |
| Language: | Inglés |
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Canadian Center of Science and Education
2020
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| Online Access: | http://hdl.handle.net/20.500.11939/6415 http://ccsenet.org/journal/index.php/jas/article/view/14803 |
| _version_ | 1855032422894141440 |
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| author | Martínez-Alcántara, Belén Quinones, Ana Primo-Millo, Eduardo Legaz, Francisco |
| author_browse | Legaz, Francisco Martínez-Alcántara, Belén Primo-Millo, Eduardo Quinones, Ana |
| author_facet | Martínez-Alcántara, Belén Quinones, Ana Primo-Millo, Eduardo Legaz, Francisco |
| author_sort | Martínez-Alcántara, Belén |
| collection | ReDivia |
| description | Fertilizer isotope labelling (15N) of young Lane Late potted orange trees with differential N rates at three phenological periods (end of flowering, fruit set and fruit growth) was used to determine patterns of N uptake response and N efficiency (NUE) along the growing cycle. In a first experiment trees were fed with a saturating N solution in order to determine seasonal variations in N requirements. The second experiment tested four N rates which were equal to (N1), two (N2), three (N3) and four-fold (N4) the N requirements at each period. Increasing N rate diminished NUE being the decrease more acute at flowering as a consequence of the lower response in N uptake to increased N supply in this period. Theoretical NUE corresponding to a fertilizer rate that fulfills plant requirements in each period was calculated, being highest at the end of fruit set period (72%), which contrasted with the value obtained for flowering (28%), when potential nitrogen leaching reached therefore its maximum (71%). |
| format | article |
| id | ReDivia6415 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Canadian Center of Science and Education |
| publisherStr | Canadian Center of Science and Education |
| record_format | dspace |
| spelling | ReDivia64152025-04-25T14:47:00Z Seasonal Changes in Nitrate Uptake Efficiency in Young Potted Citrus Trees Martínez-Alcántara, Belén Quinones, Ana Primo-Millo, Eduardo Legaz, Francisco Nitrogen uptake 15N N recovery F61 Plant physiology - Nutrition Citrus Fertilizer isotope labelling (15N) of young Lane Late potted orange trees with differential N rates at three phenological periods (end of flowering, fruit set and fruit growth) was used to determine patterns of N uptake response and N efficiency (NUE) along the growing cycle. In a first experiment trees were fed with a saturating N solution in order to determine seasonal variations in N requirements. The second experiment tested four N rates which were equal to (N1), two (N2), three (N3) and four-fold (N4) the N requirements at each period. Increasing N rate diminished NUE being the decrease more acute at flowering as a consequence of the lower response in N uptake to increased N supply in this period. Theoretical NUE corresponding to a fertilizer rate that fulfills plant requirements in each period was calculated, being highest at the end of fruit set period (72%), which contrasted with the value obtained for flowering (28%), when potential nitrogen leaching reached therefore its maximum (71%). 2020-05-04T14:44:33Z 2020-05-04T14:44:33Z 2012 article publishedVersion Martínez-Alcántara, B., Quiñones, A., Primo-Millo, E., & Legaz, F. (2012). Seasonal changes in nitrate uptake efficiency in young potted citrus trees. Journal of Agricultural Science, 4(8), 11. 1916-9752 http://hdl.handle.net/20.500.11939/6415 10.5539/jas.v4n8p11 http://ccsenet.org/journal/index.php/jas/article/view/14803 en Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Canadian Center of Science and Education electronico |
| spellingShingle | Nitrogen uptake 15N N recovery F61 Plant physiology - Nutrition Citrus Martínez-Alcántara, Belén Quinones, Ana Primo-Millo, Eduardo Legaz, Francisco Seasonal Changes in Nitrate Uptake Efficiency in Young Potted Citrus Trees |
| title | Seasonal Changes in Nitrate Uptake Efficiency in Young Potted Citrus Trees |
| title_full | Seasonal Changes in Nitrate Uptake Efficiency in Young Potted Citrus Trees |
| title_fullStr | Seasonal Changes in Nitrate Uptake Efficiency in Young Potted Citrus Trees |
| title_full_unstemmed | Seasonal Changes in Nitrate Uptake Efficiency in Young Potted Citrus Trees |
| title_short | Seasonal Changes in Nitrate Uptake Efficiency in Young Potted Citrus Trees |
| title_sort | seasonal changes in nitrate uptake efficiency in young potted citrus trees |
| topic | Nitrogen uptake 15N N recovery F61 Plant physiology - Nutrition Citrus |
| url | http://hdl.handle.net/20.500.11939/6415 http://ccsenet.org/journal/index.php/jas/article/view/14803 |
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