1987
DOI: 10.1007/bf02374940
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The fate of15N labeled nitrogen applied to mature citrus trees

Abstract: The efficiency and balance of nitrogen from one year's application was studied in a long-term fertigation experiment. Enriched nitrogen fertilizer, K~SNO3, was applied to a 22-year-old Shamouti orange tree with a history of high N applications (N3) and to an N-starved tree (N I ). The distribution of N in the different parts of the trees and in the soil was determined after the experimental trees were excavated.Similar total recovery of the labeled fertilizer N was found in the trees and soil in both treatment… Show more

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Cited by 95 publications
(85 citation statements)
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“…For perennial crops, however, such studies are published in a much lower volume, mainly due to the larger stature of the plants and longer life cycle, which lead to specific problems related to the 15 N tracer use. As examples we cite the reports of Wallace et al (1954), Legaz et al (1982), Feigenbaum et al (1987), Legaz et al (1995), Boaretto et al (1999a, b), Lea-Cox et al (2001), Lima Filho and Malavolta (2003), and Fenilli et al (2004 who worked with the genus Citrus, and Bustamante et al (1997), Snoeck et al (1998) and Snoeck and Domenach (1999) with the genus Coffea.…”
mentioning
confidence: 84%
“…For perennial crops, however, such studies are published in a much lower volume, mainly due to the larger stature of the plants and longer life cycle, which lead to specific problems related to the 15 N tracer use. As examples we cite the reports of Wallace et al (1954), Legaz et al (1982), Feigenbaum et al (1987), Legaz et al (1995), Boaretto et al (1999a, b), Lea-Cox et al (2001), Lima Filho and Malavolta (2003), and Fenilli et al (2004 who worked with the genus Citrus, and Bustamante et al (1997), Snoeck et al (1998) and Snoeck and Domenach (1999) with the genus Coffea.…”
mentioning
confidence: 84%
“…Feigenbaum et al (1987) (Alva et al, 2006a) en Florida, con el fin de determinar unas Buenas Prácticas de Manejo (BPM) que incrementando la eficiencia de absorción del N mantengan una producción óptima, se concluyó que la aplicación de una dosis de 260 kg N·ha -1 ·año -1 en fertirriego conducía a las mayores producciones (94 Mg·ha -1 ). El incremento de la dosis supuso una reducción sustancial en la pendiente de la curva de de respuesta, con la consiguiente disminución en la eficiencia de uso del N, el consumo de lujo del mismo y el riesgo de lixiviado del exceso de N por debajo de la zona radical que de este hecho se derivan.…”
Section: Eficiencia De Uso Del Nitrógeno Aplicadounclassified
“…En árboles jóvenes los valores encontrados son similares a los del presente ensayo. Martínez et al (2002) Llegándose a valores de biomasa de unos 320 kg en naranjos Shamouti de 20 años (Feigenbaum et al, 1987). La proporción relativa de los distintos órganos en el total de la planta depende asimismo de la edad.…”
Section: Floración (Mayo)unclassified
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