Actividad microbiológica de un suelo sometido a distintos usos y su relación con variables físico- químicas
Much of the microbial processes that contribute to agroecosystems fertility and nutrient cycling take place in the soil. This nutrient cycling depends critically on the soils' microbiological activity, which is, in turn, mediated by the structure and functioning of the edaphic biota. In this co...
Guardado en:
| Autores principales: | , , , |
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| Formato: | Artículo Artículo acceptedVersion |
| Lenguaje: | Español Español |
| Publicado: |
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias
2020
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| Materias: | |
| Acceso en línea: | http://ri.unlu.edu.ar/xmlui/handle/rediunlu/822 |
| Aporte de: |
| id |
I62-R168-rediunlu-822 |
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| record_format |
dspace |
| institution |
Universidad Nacional de Luján (UNLu) |
| institution_str |
I-62 |
| repository_str |
R-168 |
| collection |
REDIUNLu - Repositorio Digital Institucional de Acceso Abierto - Universidad Nacional de Luján (UNLu) |
| language |
Español Español |
| topic |
Actividad nitrogenasa Respiración edáfica Propiedades físico-químicas Sustentabilidad Agroecosistemas Nitrogenase activity Soil respiration Physico-chemical properties Sustainability Agroecosystems |
| spellingShingle |
Actividad nitrogenasa Respiración edáfica Propiedades físico-químicas Sustentabilidad Agroecosistemas Nitrogenase activity Soil respiration Physico-chemical properties Sustainability Agroecosystems Di Ciocco, Cesar Augusto Sandler, Rosana Veronica Falco, Liliana Beatriz Coviella, Carlos Eduardo Actividad microbiológica de un suelo sometido a distintos usos y su relación con variables físico- químicas |
| topic_facet |
Actividad nitrogenasa Respiración edáfica Propiedades físico-químicas Sustentabilidad Agroecosistemas Nitrogenase activity Soil respiration Physico-chemical properties Sustainability Agroecosystems |
| description |
Much of the microbial processes that contribute to agroecosystems fertility and nutrient cycling take place in the soil. This nutrient cycling depends critically on the soils' microbiological activity, which is, in turn, mediated by the structure and functioning of the edaphic biota. In this context, the objective of this work was to determine if the microbial activity can be a good indicator of soil use intensity, by analyzing: 1- if differences in soil use intensity are related to differences in microbiological activity estimated through soil respiration and enzymatic activity, and 2- the possible relationships between these variables and physico-chemical variables. Samplings were conducted every three months between 2008 and 2010 in fields in the Buenos Aires province on argiudoll soils under different land uses: 1- Intensive continuous agriculture, 2- Recent agriculture and 3- Naturalized grasslands. Three sampling sites (replicates) were selected for soil use and five samples were collected per replicate and date. Microbial activity was then assessed by measuring soil respiration and nitrogenase enzyme activity, and physico-chemical variables were measured as well. Data were analyzed by means of a Kruskal-Wallis test (P < 0.05). A non- parametric analysis was performed (Spearman multiple correlation) between the physicochemical and microbiological variables. The different uses of the same soil showed significant differences in microbiological activity. Soil respiration was higher in the naturalized grasslands and lower in the continuous agricultural system. Nitrogenase activity was higher in the naturalized grasslands, intermediate in the recent agricultural system and lower in the continuous agriculture fields. The physico-chemical variables measured were less consistent in detecting differences among soil uses. Significant correlations were detected between microbiological activity and some of the physico-chemical variables measured. The results show that microbiological activity can be useful to detect differences in soil use intensity |
| format |
Article Artículo Artículo acceptedVersion |
| author |
Di Ciocco, Cesar Augusto Sandler, Rosana Veronica Falco, Liliana Beatriz Coviella, Carlos Eduardo |
| author_facet |
Di Ciocco, Cesar Augusto Sandler, Rosana Veronica Falco, Liliana Beatriz Coviella, Carlos Eduardo |
| author_sort |
Di Ciocco, Cesar Augusto |
| title |
Actividad microbiológica de un suelo sometido a distintos usos y su relación con variables físico- químicas |
| title_short |
Actividad microbiológica de un suelo sometido a distintos usos y su relación con variables físico- químicas |
| title_full |
Actividad microbiológica de un suelo sometido a distintos usos y su relación con variables físico- químicas |
| title_fullStr |
Actividad microbiológica de un suelo sometido a distintos usos y su relación con variables físico- químicas |
| title_full_unstemmed |
Actividad microbiológica de un suelo sometido a distintos usos y su relación con variables físico- químicas |
| title_sort |
actividad microbiológica de un suelo sometido a distintos usos y su relación con variables físico- químicas |
| publisher |
Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias |
| publishDate |
2020 |
| url |
http://ri.unlu.edu.ar/xmlui/handle/rediunlu/822 |
| work_keys_str_mv |
AT dicioccocesaraugusto actividadmicrobiologicadeunsuelosometidoadistintosusosysurelacionconvariablesfisicoquimicas AT sandlerrosanaveronica actividadmicrobiologicadeunsuelosometidoadistintosusosysurelacionconvariablesfisicoquimicas AT falcolilianabeatriz actividadmicrobiologicadeunsuelosometidoadistintosusosysurelacionconvariablesfisicoquimicas AT coviellacarloseduardo actividadmicrobiologicadeunsuelosometidoadistintosusosysurelacionconvariablesfisicoquimicas |
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Repositorios |
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