TITLE:
Relationship among Different Soil Biochemical Methods to Determine Soil Health
AUTHORS:
Amitava Chatterjee, Umesh Acharya
KEYWORDS:
Chloroform Fumigated Microbial Biomass Carbon, Solvita CO2-Burst, Soil Labile Amino Nitrogen (SLAN), Permanganate Oxidizable Carbon, Infrared Gas Analyzer, Soil Organic Carbon
JOURNAL NAME:
Open Journal of Soil Science,
Vol.8 No.11,
November
15,
2018
ABSTRACT: Numerous soil biochemical methods are used to determine the soil health
status, but the relationships among these methods are not well understood.
Relationships among soil biochemical tests, 1) chloroform fumigated microbial
biomass C (CFMBC), 2) permanganate oxidizable C (POXC), 3) Solvita
CO2-burst (Solvita), 4) Solvita labile amino nitrogen (SLAN), and short-term
soil CO2 efflux during laboratory incubation using (v) Alkali-base trap (Alkali)
and (vi) infrared gas analyzer (IRGA), were evaluated for nine agricultural
soils collected across the Red River Valley of North Dakota and Minnesota,
USA. Not a single test is comprehensive to relate with all soil biochemical
tests. Coefficient of variation percentage for particular method varied with
soil type. Among six tests, CFMBC is significantly (p