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By Donald L. Sparks

Advances in Agronomy is still famous as a number one reference and a primary resource for the newest study in agronomy. As consistently, the topics lined are assorted and exemplary of the myriad of subject material handled via this long-running serial.

  • Maintains the top effect issue between serial courses in agriculture
  • Presents well timed reports on very important agronomy concerns
  • Enjoys a long-standing attractiveness for excellence within the field

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2000). In one of the first studies applying FT-Raman to bacterial identification, Naumann et al. (1995) obtained reproducible spectra of Enterobacteriaceae, Staphylococcus, Bacillus, and Pseudomonas bacterial strains that had no florescence interference even for highly colored bacteria. The Raman spectra gave complementary information (C–H bond stretching of the bacterial membrane phospholipids, amino acids, and RNA/DNA) to the FTIR data (amide I/II bands of proteins and oligo/polysaccharides of cell walls).

46 Sanjai J. Parikh et al. , 2008). For details on the use of FTIR to identify and classify microorganisms, readers are referred to Mariey et al. (2001), who give a thorough review of articles from the 1990s which utilize FTIR spectroscopy for characterization of microorganisms, and papers by Maquelin et al. (2003, 2002) who employ FTIR and Raman spectroscopies to identify medically relevant microorganisms. The organic nature of bacteria results in similarities of peak locations between SOM and microbial samples.

EWu et al. (2009). fBrewer et al. (2009). bSharma cKeiluweit 52 Sanjai J. Parikh et al. C]O, C–O, C–H), and finally condensation into aromatic ring structures (decrease in number of FTIR bands) for biochars produced at 700 °C. Since FTIR spectroscopy probes chemical bonds with dipole moments, nonpolar materials are not strong IR absorbers; therefore, the FTIR spectra of highly aromatic chars do not have large peaks. It should be noted that FTIR is not limited to characterization of discrete biochar samples, but can also be used to study and characterize charcoal within soil.

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