Establishment of dris norms for the nutritional diagnosis of rubber (hevea brasiliensis muell arg.) clone rrim 600 on the eastern plains of colombia Report as inadecuate




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The diagnosis and recommendation integrated system DRIS is an efficient method for evaluating the nutritional status of crops and was initially developed for rubber. In Colombia, the size of the rubber crop has grown significantly during the last decade, but recommendations do not yet exist for crop nutrition management at a local level. The aim of the present study wasto determine preliminary DRIS norms for rubber clone RRIM 600 under the conditions found on the Eastern Plains of Colombia. To this end, 78 leaf samples were collected, 19 of which were classified as high-yield, showing production above 2,690 kg ha-1, while the remaining 59 samples were classified as low-yield. The highest variance ratio and the value of R were used as criteria for selecting DRIS norms and were found to present differences, only coinciding for 32 of the studied ratios. The calculation of the DRIS indexes was carried outusing the determined norms; and K was found to be the element that most strongly limited production and showed the greatest probability of exhibiting a response upon exogenous application. Additionally, small quantities of Cu and S can generate imbalances that influence the yield of this clone.

Tipo de documento: Artículo - Article

Información adicional: © Facultad de Agronomía, Universidad Nacional de Colombia Se autoriza la reproducción y citación del material que aparece en la revista, siempre y cuando se indique de manera explícita: nombre de la revista, nombre del autores, año, volumen, número y páginas del artículo fuente. Las ideas y afirmaciones consignadas por los autores están bajo su responsabilidad y no interpretan necesariamente las opiniones y políticas de la Universidad Nacional de Colombia. La mención de productos o firmas comerciales en la revista no implica una recomendación o apoyo por parte de la Universidad ni de la Facultad; el uso de tales productos debe ceñirse a las recomendaciones de las etiquetas.

Palabras clave: nutrient balance, leaf tissue analysis, plant production, nutritional status.





Source: http://www.bdigital.unal.edu.co


Teaser



SOILS, FERTILIZATION AND MANAGEMENT OF WATER Establishment of DRIS norms for the nutritional diagnosis of rubber (Hevea brasiliensis Muell Arg.) clone RRIM 600 on the Eastern Plains of Colombia Establecimiento de la norma de DRIS para el diagnóstico nutricional del caucho (Hevea brasiliensis Muell Arg.) clon RRIM 600 en la altillanura de Colombia Edinson Chacón-Pardo1, Jesús H.
Camacho-Tamayo2, and Orlando Arguello3 ABSTRACT RESUMEN The diagnosis and recommendation integrated system (DRIS) is an efficient method for evaluating the nutritional status of crops and was initially developed for rubber.
In Colombia, the size of the rubber crop has grown significantly during the last decade, but recommendations do not yet exist for crop nutrition management at a local level.
The aim of the present study wasto determine preliminary DRIS norms for rubber clone RRIM 600 under the conditions found on the Eastern Plains of Colombia. To this end, 78 leaf samples were collected, 19 of which were classified as high-yield, showing production above 2,690 kg ha-1, while the remaining 59 samples were classified as low-yield.
The highest variance ratio and the value of R were used as criteria for selecting DRIS norms and were found to present differences, only coinciding for 32 of the studied ratios.
The calculation of the DRIS indexes was carried outusing the determined norms; and K was found to be the element that most strongly limited production and showed the greatest probability of exhibiting a response upon exogenous application.
Additionally, small quantities of Cu and S can generate imbalances that influence the yield of this clone. El sistema de diagnóstico y recomendación integral (DRIS) es un método eficiente para evaluar el estado nutricional de los cultivos, desarrollado inicialmente para el caucho.
En Colombia, el cultivo de caucho ha crecido de manera significativa en la última década, pero aún no existen recomendaciones de manejo nutricional a nivel local....






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