![Microbial populations immobilizing NH"4^+-N and NO"3^--N differ in their sensitivity to sodium chloride salinity in soil [An article from: Soil Biology and Biochemistry]](https://www.ebooknetworking.net/books/B00/0PA/bigB000PAA5D2.jpg)
Microbial populations immobilizing NH"4^+-N and NO"3^--N differ in their sensitivity to sodium chloride salinity in soil [An article from: Soil Biology and Biochemistry]
Book Details
Author(s)
F. Azam, M. Ifzal
Publisher
Elsevier
ISBN / ASIN
B000PAA5D2
ISBN-13
978B000PAA5D7
Availability
Available for download now
Sales Rank
#99,999,999
Marketplace
United States 🇺🇸
Description
This digital document is a journal article from Soil Biology and Biochemistry, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
An incubation experiment was conducted to study the response to sodium chloride (NaCl) salinity of microbial population immobilizing NH"4^+- and NO"3^--N using glucose as an easily oxidizable C source. Immobilization of NH"4^+-N was faster than that of NO"3^--N and was complete within 12h of -incubation. Presence of NaCl retarded the process of N immobilization; that of NO"3^--N being more affected. Remineralization of immobilized N started within 48h in case of both NH"4^+- and NO"3^--N and was faster for the latter. Both remineralization and nitrification were significantly delayed in the presence of NaCl; inhibition being more at 4000mg NaClkg^-^1 soil. The inhibitory effect of NaCl on remineralization of N was relatively more for NH"4^+-treated soil. The results of the study suggested a higher sensitivity to NaCl of microorganisms assimilating NO"3^-. However, remineralization of N from NO"3^--assimilating microbial population was less affected by NaCl salinity compared to NH"4^+-assimilating population.
Description:
An incubation experiment was conducted to study the response to sodium chloride (NaCl) salinity of microbial population immobilizing NH"4^+- and NO"3^--N using glucose as an easily oxidizable C source. Immobilization of NH"4^+-N was faster than that of NO"3^--N and was complete within 12h of -incubation. Presence of NaCl retarded the process of N immobilization; that of NO"3^--N being more affected. Remineralization of immobilized N started within 48h in case of both NH"4^+- and NO"3^--N and was faster for the latter. Both remineralization and nitrification were significantly delayed in the presence of NaCl; inhibition being more at 4000mg NaClkg^-^1 soil. The inhibitory effect of NaCl on remineralization of N was relatively more for NH"4^+-treated soil. The results of the study suggested a higher sensitivity to NaCl of microorganisms assimilating NO"3^-. However, remineralization of N from NO"3^--assimilating microbial population was less affected by NaCl salinity compared to NH"4^+-assimilating population.
