Nitrogen dynamics extraction in wheat under different environments
Patterns of nitrogen extraction in wheat (Triticum aestivum L.) grown under different environmental conditions were obtained by statistical models. Analysis of these patterns and derived parameters indicated that dynamics of nitrogen accumulation in the head is related to dynamics of extraction from...
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Veröffentlicht in: | Agrociencia (Montecillo) 1997-06, Vol.31 (2) |
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Format: | Artikel |
Sprache: | spa |
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Zusammenfassung: | Patterns of nitrogen extraction in wheat (Triticum aestivum L.) grown under different environmental conditions were obtained by statistical models. Analysis of these patterns and derived parameters indicated that dynamics of nitrogen accumulation in the head is related to dynamics of extraction from leaf and stem. The decay of nitrogen of leaf and stem after maximum accumulation represents an average of 55% of the total amount acumulated in the head. The patterns of nitrogen extraction can be useful for making fertilizer recommendations in wheat, to determine the efficiency of nitrogen fertilizers, and to provide information for the breeding process
Se obtuvieron los patrones de extraccion de nitrogeno en trigo (Triticum aestivum L.) cultivado en diferentes ambientes, mediante modelos estadisticos. El analisis de estos patrones y de parametros derivados indico que la dinamica de acumulacion de nitrogeno en la espiga se relaciona con la dinamica de extraccion de ese elemento en hoja y tallo. El abatimiento de nitrogeno en estos organos, despues de producirse la maxima acumulacion, representa, en promedio, 55% de la cantidad maxima acumulada por la espiga. Los patrones de extraccion de nitrogeno pueden ser utiles para planificar la fertilizacion del cultivo, determinar la eficiencia de los fertilizantes nitrogenados y dar informacion en el proceso de mejoramiento genetico de este cereal |
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ISSN: | 1405-3195 |