Effect of two organic fertilizers on food webs of soil cultivated with blackberry

Soil fertilization with organic fertilizers comprises a practice that improves the soil biological properties; however, the effect of these on the soil food web (SFW) has been scarcely studied. The aim of this study was to determine the effect of two commercial organic fertilizers on the structure of the SFW associated with roots of blackberry plants (Rubus adenotrichos). The research was conducted in two blackberry plantations located one in San Martín de León Cortés, and the other one in Buena Vista de Pérez Zeledón in San José, Costa Rica, from August to December, 2010. In the two plantations, plants were fertilized with compost or vermicompost. The roots of blackberry plants surrounding soil were sampled in order to quantify groups of the SFW through the following techniques: bacteria and filamentous fungi by plate count, protozoa by the most probable number, spores from arbuscular mycorrhizal fungi and nematodes by flotation-centrifugation, microarthropods, macroarthropods, and worms were directly counted in soil samples. The dataset was analyzed by multidimensional scaling analysis. The addition of organic fertilizers to soil caused a differential effect on the structure of the SFW (as compared with non-fertilized soils). The effect differed in soil from each of the experimental plantations according to fertilizer type. The groups of organisms mainly affected were actinomycetes and protozoa, which implies that the structure of SFW and consequently, the function of soil were not affected by the addition of organic fertilizers.

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Main Authors: Orozco Aceves, Martha, Calvo Araya, José Alonso, Gamboa Tabares, Jean Alexander, Peraza Padilla, Wálter, Varela Rodríguez, Orlando, Orozco Rodríguez, Rafael
Format: Digital revista
Language:spa
Published: Universidad de Costa Rica 2017
Online Access:https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25861
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record_format ojs
institution UCR
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country Costa Rica
countrycode CR
component Revista
access En linea
databasecode rev-agromeso
tag revista
region America Central
libraryname Bibioteca de la Facultad de Agronomía
language spa
format Digital
author Orozco Aceves, Martha
Calvo Araya, José Alonso
Gamboa Tabares, Jean Alexander
Peraza Padilla, Wálter
Varela Rodríguez, Orlando
Orozco Rodríguez, Rafael
spellingShingle Orozco Aceves, Martha
Calvo Araya, José Alonso
Gamboa Tabares, Jean Alexander
Peraza Padilla, Wálter
Varela Rodríguez, Orlando
Orozco Rodríguez, Rafael
Effect of two organic fertilizers on food webs of soil cultivated with blackberry
author_facet Orozco Aceves, Martha
Calvo Araya, José Alonso
Gamboa Tabares, Jean Alexander
Peraza Padilla, Wálter
Varela Rodríguez, Orlando
Orozco Rodríguez, Rafael
author_sort Orozco Aceves, Martha
title Effect of two organic fertilizers on food webs of soil cultivated with blackberry
title_short Effect of two organic fertilizers on food webs of soil cultivated with blackberry
title_full Effect of two organic fertilizers on food webs of soil cultivated with blackberry
title_fullStr Effect of two organic fertilizers on food webs of soil cultivated with blackberry
title_full_unstemmed Effect of two organic fertilizers on food webs of soil cultivated with blackberry
title_sort effect of two organic fertilizers on food webs of soil cultivated with blackberry
description Soil fertilization with organic fertilizers comprises a practice that improves the soil biological properties; however, the effect of these on the soil food web (SFW) has been scarcely studied. The aim of this study was to determine the effect of two commercial organic fertilizers on the structure of the SFW associated with roots of blackberry plants (Rubus adenotrichos). The research was conducted in two blackberry plantations located one in San Martín de León Cortés, and the other one in Buena Vista de Pérez Zeledón in San José, Costa Rica, from August to December, 2010. In the two plantations, plants were fertilized with compost or vermicompost. The roots of blackberry plants surrounding soil were sampled in order to quantify groups of the SFW through the following techniques: bacteria and filamentous fungi by plate count, protozoa by the most probable number, spores from arbuscular mycorrhizal fungi and nematodes by flotation-centrifugation, microarthropods, macroarthropods, and worms were directly counted in soil samples. The dataset was analyzed by multidimensional scaling analysis. The addition of organic fertilizers to soil caused a differential effect on the structure of the SFW (as compared with non-fertilized soils). The effect differed in soil from each of the experimental plantations according to fertilizer type. The groups of organisms mainly affected were actinomycetes and protozoa, which implies that the structure of SFW and consequently, the function of soil were not affected by the addition of organic fertilizers.
publisher Universidad de Costa Rica
publishDate 2017
url https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25861
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spelling oai:portal.ucr.ac.cr:article258612023-06-16T13:48:25Z Effect of two organic fertilizers on food webs of soil cultivated with blackberry Efecto de dos abonos orgánicos en las cadenas tróficas del suelo cultivado con mora Orozco Aceves, Martha Calvo Araya, José Alonso Gamboa Tabares, Jean Alexander Peraza Padilla, Wálter Varela Rodríguez, Orlando Orozco Rodríguez, Rafael agricultura orgánica biología del suelo compost lombricompost Rubus adenotrichos. organic agriculture soil biology compost vermicompost Rubus adenotrichos. Soil fertilization with organic fertilizers comprises a practice that improves the soil biological properties; however, the effect of these on the soil food web (SFW) has been scarcely studied. The aim of this study was to determine the effect of two commercial organic fertilizers on the structure of the SFW associated with roots of blackberry plants (Rubus adenotrichos). The research was conducted in two blackberry plantations located one in San Martín de León Cortés, and the other one in Buena Vista de Pérez Zeledón in San José, Costa Rica, from August to December, 2010. In the two plantations, plants were fertilized with compost or vermicompost. The roots of blackberry plants surrounding soil were sampled in order to quantify groups of the SFW through the following techniques: bacteria and filamentous fungi by plate count, protozoa by the most probable number, spores from arbuscular mycorrhizal fungi and nematodes by flotation-centrifugation, microarthropods, macroarthropods, and worms were directly counted in soil samples. The dataset was analyzed by multidimensional scaling analysis. The addition of organic fertilizers to soil caused a differential effect on the structure of the SFW (as compared with non-fertilized soils). The effect differed in soil from each of the experimental plantations according to fertilizer type. The groups of organisms mainly affected were actinomycetes and protozoa, which implies that the structure of SFW and consequently, the function of soil were not affected by the addition of organic fertilizers. La adición de abonos orgánicos es una práctica que mejora las propiedades biológicas del suelo; sin embargo, los efectos de estos sobre las cadenas tróficas (CT) del suelo han sido poco estudiados. El objetivo del trabajo fue determinar el efecto de dos abonos orgánicos comerciales sobre la estructura de las CT asociadas a raíces de plantas de mora (Rubus adenotrichos). La investigación se realizó en dos plantaciones de mora en San Martín de León Cortés y Buena Vista de Pérez Zeledón, San José, Costa Rica, durante agosto-diciembre del 2010. En ambas plantaciones las plantas fueron fertilizadas con compost o lombricompost. Se muestreó el suelo que circundaba las raíces de las plantas para cuantificar los grupos de organismos de las CT, mediante las siguientes técnicas: bacterias y hongos filamentosos mediante cuenta directa en placa, protozoarios mediante el número más probable, esporas de hongos micorrizógenos y nematodos mediante flotación-centrifugación, microartrópodos, macroartrópodos y lombrices fueron cuantificados directamente en el suelo. Los resultados fueron analizados mediante análisis de escalamiento multidimensional. La adición de abonos orgánicos causó un efecto diferencial sobre la estructura de las CT (con respecto a suelos sin fertilizar). Dependiendo del tipo de abono, este efecto varió en cada una de las fincas. Los grupos de organismos mayormente afectados fueron actinomicetes y protozoarios, lo cual implica que la estructura de las CT y como consecuencia, las funciones del suelo no fueron afectadas por la adición de abonos orgánicos. Universidad de Costa Rica 2017-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf text/html application/epub+zip https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25861 10.15517/ma.v28i3.25861 Agronomía Mesoamericana; 2017: Agronomía Mesoamericana: Vol. 28, Issue 3 (September-December); 619-628 Agronomía Mesoamericana; 2017: Agronomía Mesoamericana: Vol. 28, Nº 3 (Setiembre-diciembre); 619-628 Agronomía Mesoamericana; 2017: Agronomía Mesoamericana: Vol. 28, Issue 3 (September-December); 619-628 2215-3608 1021-7444 spa https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25861/30273 https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25861/30274 https://revistas.ucr.ac.cr/index.php/agromeso/article/view/25861/30470