Biological and Physicochemical Parameters Related to the Nitrogen Cycle in the Rhizospheric Soil of Native Potato (Solanum phureja) Crops of Colombia
Joint Authors
Uribe-Vélez, Daniel
Flórez-Zapata, Nathalia
Source
Applied and Environmental Soil Science
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-31
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Earth Science , Water and Environment
Abstract EN
Nitrogen (N) plays an important role in agricultural production.
This study was designed to evaluate the presence of cultivable N cycle-associated microorganisms (nitrogen-fixing bacteria—NFB, proteolytic bacteria—PR, ammonifiers—AMO, ammonium-oxidizing bacteria—AOB, nitrite-oxidizing bacteria—NOB, and denitrifiers—DEN), and their relationship with physical-chemical and agronomic soil descriptors, in Solanum phureja rhizospheric soil samples, from traditional and organic crop management farms.
A cluster analysis with the physical and chemical properties of soil, allowed to identify the organic matter content as an important factor that determines the outcome of that grouping.
Significant differences (P<0.05) between farms were found in the abundance of this groups, but correlation analysis showed that proteolytic and nitrogen fixing bacteria were the main nitrogen associated functional groups affected by soils' physical-chemical characteristics.
The amount of ammonia available is affected by the agricultural management strategy, which consequently affects the NFB abundance.
Finally the results showed that PR, protease activity and soil properties related with organic matter transformation has a positive relationship with productivity, which given the high organic matter content of the Andean soils being studied, we conclude that nitrogen mineralization process has an important role in the nitrogen cycle and its bioavailability in this ecosystem.
American Psychological Association (APA)
Flórez-Zapata, Nathalia& Uribe-Vélez, Daniel. 2011. Biological and Physicochemical Parameters Related to the Nitrogen Cycle in the Rhizospheric Soil of Native Potato (Solanum phureja) Crops of Colombia. Applied and Environmental Soil Science،Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-503002
Modern Language Association (MLA)
Flórez-Zapata, Nathalia& Uribe-Vélez, Daniel. Biological and Physicochemical Parameters Related to the Nitrogen Cycle in the Rhizospheric Soil of Native Potato (Solanum phureja) Crops of Colombia. Applied and Environmental Soil Science No. 2011 (2011), pp.1-10.
https://search.emarefa.net/detail/BIM-503002
American Medical Association (AMA)
Flórez-Zapata, Nathalia& Uribe-Vélez, Daniel. Biological and Physicochemical Parameters Related to the Nitrogen Cycle in the Rhizospheric Soil of Native Potato (Solanum phureja) Crops of Colombia. Applied and Environmental Soil Science. 2011. Vol. 2011, no. 2011, pp.1-10.
https://search.emarefa.net/detail/BIM-503002
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-503002