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BookletCorporate general interestStandard operating procedure for soil organic carbon: Tyurin spectrophotometric method 2021
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This protocol applies to the determination of the oxidizable organic carbon content in the soil. The organic carbon content is calculated from the amount of chromic ion (Cr3+) formed which is determined by the spectrophotometric method. -
BookletCorporate general interestStandard operating procedure for soil organic carbon. Walkley-Black method: titration and colorimetric method 2020GLOSOLAN is a Global Soil Laboratory Network which aims to harmonize soil analysis methods and data so that soil information is comparable and interpretable across laboratories, countries and regions. Evidence-based decisions are critical to the achievement of Sustainable Soil Management (SSM), food security and nutrition, and Agenda 2030 for Sustainable Development. While the quantity and quality of soil data are fundamental, soil information must also be harmonized and globally consistent to have impact. Standard operating procedures (SOPs) are sets of step-by-step written instructions that help lab staff to carry out routine operations by describing, in detail, how to perform a laboratory process or experiment safely and effectively. SOPs aim to achieve efficiency, quality of output and uniformity of performance, while reducing miscommunication and failure to comply with laboratory and international standards. The harmonization of laboratory standard operating procedures and methods is at the basis of harmonizing soil laboratory data.
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BookletCorporate general interestStandard operating procedure for soil microbial biomass (carbon): chloroform fumigation-extraction method 2024
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No results found.Microbial biomass is considered as an estimation of soil biological activities and the capacity to mediate soil biochemical reactions. It is the most dynamic and labile of soil organic matter fractions, generally accounting for 1 to 5 percent of soil organic matter and very sensitive to soil management. The need to quantify soil microbiota has become increasingly relevant in current times as they are responsible for many different processes like the degradation of organic matter, the stability of aggregates and most of the nutrient cycling that occurs in soils. This standard operating procedure (SOP) focuses on the determination of soil microbial biomass using the chloroform fumigation-extraction method, which is applicable to both aerobic and anaerobic conditions over the whole range of soil pH, regardless of land use type. While chloroform fumigation also affects soil fauna, the carbon aliquot derived from these organisms is generally small (less than 5 percent) and can usually be disregarded.
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Brochure, flyer, fact-sheetBrochureStandard operating procedure for quasi total elements in soil by acid digestion, including heavy metals 2023
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This method is applicable to the determination of trace element metals (MTE) as well as metalloids in soils by acid digestion using aqua regia. -
MeetingMeeting documentReport of the Sixth Meeting of the African Soil Partnership (AfSP) - AfSP-VI/22/Report
Online meeting, 26–27 April 2022
2022Also available in:
No results found.AfSP-VI/22/Report | Report of the Sixth Meeting of the African Soil Partnership (AfSP) in the framework of FAO's Global Soil Partnership -
BookletCorporate general interestStandard operating procedure for soil microbial biomass (carbon): chloroform fumigation-extraction method 2024
Also available in:
No results found.Microbial biomass is considered as an estimation of soil biological activities and the capacity to mediate soil biochemical reactions. It is the most dynamic and labile of soil organic matter fractions, generally accounting for 1 to 5 percent of soil organic matter and very sensitive to soil management. The need to quantify soil microbiota has become increasingly relevant in current times as they are responsible for many different processes like the degradation of organic matter, the stability of aggregates and most of the nutrient cycling that occurs in soils. This standard operating procedure (SOP) focuses on the determination of soil microbial biomass using the chloroform fumigation-extraction method, which is applicable to both aerobic and anaerobic conditions over the whole range of soil pH, regardless of land use type. While chloroform fumigation also affects soil fauna, the carbon aliquot derived from these organisms is generally small (less than 5 percent) and can usually be disregarded. -
Brochure, flyer, fact-sheetBrochureStandard operating procedure for quasi total elements in soil by acid digestion, including heavy metals 2023
Also available in:
This method is applicable to the determination of trace element metals (MTE) as well as metalloids in soils by acid digestion using aqua regia. -
MeetingMeeting documentReport of the Sixth Meeting of the African Soil Partnership (AfSP) - AfSP-VI/22/Report
Online meeting, 26–27 April 2022
2022Also available in:
No results found.AfSP-VI/22/Report | Report of the Sixth Meeting of the African Soil Partnership (AfSP) in the framework of FAO's Global Soil Partnership -
BookletCorporate general interestStandard operating procedure for soil microbial biomass (carbon): chloroform fumigation-extraction method 2024
Also available in:
No results found.Microbial biomass is considered as an estimation of soil biological activities and the capacity to mediate soil biochemical reactions. It is the most dynamic and labile of soil organic matter fractions, generally accounting for 1 to 5 percent of soil organic matter and very sensitive to soil management. The need to quantify soil microbiota has become increasingly relevant in current times as they are responsible for many different processes like the degradation of organic matter, the stability of aggregates and most of the nutrient cycling that occurs in soils. This standard operating procedure (SOP) focuses on the determination of soil microbial biomass using the chloroform fumigation-extraction method, which is applicable to both aerobic and anaerobic conditions over the whole range of soil pH, regardless of land use type. While chloroform fumigation also affects soil fauna, the carbon aliquot derived from these organisms is generally small (less than 5 percent) and can usually be disregarded.