Characterization of visual symptoms of nutritional deficiencies in oak seedlings
The identification of visual symptoms of deficien- cies is a widely used method in the diagnosis of nutritional problems in agricultural and forestry production. The aim of this study was to charac- terize visual symptoms of deficiencies of N, P, K, Ca, Mg, S and B, in seedlings of the andean oak, Quercus humboldtii Bonpl., under nursery conditions. Seedlings were planted in polythene bags, where fertility treatments were applied according to the method of Jenny. After 4 months of development, we photographed seedlings and leaves with symptoms of nutritional deficiencies and determined leaf nutrient content. Deficiency symptoms were detected for all nutrients studied, except B. Seedlings deficient in each nutrient had lower concentration of this element in leaf tissues. The applied dose of P was apparently not enough to have an adequate availability of this nutrient and to generate an optimal development of seed- lings of Q. humboldtii under full fertilization.
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Universidad de Costa Rica
2014
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oai:portal.ucr.ac.cr:article151642021-06-10T16:33:50Z Characterization of visual symptoms of nutritional deficiencies in oak seedlings Caracterización de los síntomas visuales de deficiencias nutricionales de plántulas del roble andino en invernadero Sepúlveda, Yira Lucia Díez, María Claudia Osorio, Nelson Walter Moreno, Flavio Humberto León, Juan Diego fertilización nutrición forestal quercus humboldtii roble vivero fertilization forest nutrition quercus humboldtii oak nursery The identification of visual symptoms of deficien- cies is a widely used method in the diagnosis of nutritional problems in agricultural and forestry production. The aim of this study was to charac- terize visual symptoms of deficiencies of N, P, K, Ca, Mg, S and B, in seedlings of the andean oak, Quercus humboldtii Bonpl., under nursery conditions. Seedlings were planted in polythene bags, where fertility treatments were applied according to the method of Jenny. After 4 months of development, we photographed seedlings and leaves with symptoms of nutritional deficiencies and determined leaf nutrient content. Deficiency symptoms were detected for all nutrients studied, except B. Seedlings deficient in each nutrient had lower concentration of this element in leaf tissues. The applied dose of P was apparently not enough to have an adequate availability of this nutrient and to generate an optimal development of seed- lings of Q. humboldtii under full fertilization. La identificación de síntomas visuales de deficiencias es un método muy utilizado en el diagnóstico de problemas nutricionales en la producción agrícola y forestal. El objetivo de este trabajo fue caracterizar los síntomas visuales de deficiencias de N, P, K, Ca, Mg, S, y B, en plántulas de roble andino Quercus humboldtii Bonpl., en condición de vivero. Las plántulas se sembraron en bolsas de polietileno, en cuyos sustratos se aplicaron los tratamientos de fertilización de acuerdo con el método de Jenny. Luego de 4 meses de desarrollo se fotografiaron las plántulas y hojas en las que se observaron los síntomas de deficiencias nutricionales y se determinó el contenido de nutrientes foliares. Se detectaron síntomas de deficiencia de todos los nutrientes estudiados, excepto de B. Las plántulas deficientes en cada nutriente presentaron menor concentración de éste elemento en los tejidos foliares. La dosis aplicada de P al parecer no fue suficiente para tener una disponibilidad adecuada del elemento y generar un óptimo desarrollo de las plántulas de Q. humboldtii con tratamiento completo de fertilización. Universidad de Costa Rica 2014-07-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/agrocost/article/view/15164 10.15517/rac.v38i1.15164 Agronomía Costarricense; Agronomía Costarricense: Vol. 38, No. 1 Agronomía Costarricense; Agronomía Costarricense: Volumen 38, número 1 2215-2202 0377-9424 spa https://revistas.ucr.ac.cr/index.php/agrocost/article/view/15164/14478 Derechos de autor 2016 Agronomía Costarricense |
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Bibioteca de la Facultad de Agronomía |
| language |
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| author |
Sepúlveda, Yira Lucia Díez, María Claudia Osorio, Nelson Walter Moreno, Flavio Humberto León, Juan Diego |
| spellingShingle |
Sepúlveda, Yira Lucia Díez, María Claudia Osorio, Nelson Walter Moreno, Flavio Humberto León, Juan Diego Characterization of visual symptoms of nutritional deficiencies in oak seedlings |
| author_facet |
Sepúlveda, Yira Lucia Díez, María Claudia Osorio, Nelson Walter Moreno, Flavio Humberto León, Juan Diego |
| author_sort |
Sepúlveda, Yira Lucia |
| title |
Characterization of visual symptoms of nutritional deficiencies in oak seedlings |
| title_short |
Characterization of visual symptoms of nutritional deficiencies in oak seedlings |
| title_full |
Characterization of visual symptoms of nutritional deficiencies in oak seedlings |
| title_fullStr |
Characterization of visual symptoms of nutritional deficiencies in oak seedlings |
| title_full_unstemmed |
Characterization of visual symptoms of nutritional deficiencies in oak seedlings |
| title_sort |
characterization of visual symptoms of nutritional deficiencies in oak seedlings |
| description |
The identification of visual symptoms of deficien- cies is a widely used method in the diagnosis of nutritional problems in agricultural and forestry production. The aim of this study was to charac- terize visual symptoms of deficiencies of N, P, K, Ca, Mg, S and B, in seedlings of the andean oak, Quercus humboldtii Bonpl., under nursery conditions. Seedlings were planted in polythene bags, where fertility treatments were applied according to the method of Jenny. After 4 months of development, we photographed seedlings and leaves with symptoms of nutritional deficiencies and determined leaf nutrient content. Deficiency symptoms were detected for all nutrients studied, except B. Seedlings deficient in each nutrient had lower concentration of this element in leaf tissues. The applied dose of P was apparently not enough to have an adequate availability of this nutrient and to generate an optimal development of seed- lings of Q. humboldtii under full fertilization. |
| publisher |
Universidad de Costa Rica |
| publishDate |
2014 |
| url |
https://revistas.ucr.ac.cr/index.php/agrocost/article/view/15164 |
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