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Brochure, flyer, fact-sheetStandard operating procedure for soil available phosphorus - Olsen method 2021
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No results found.This procedure is suitable for calcareous, alkaline, neutral, and slightly acidic soils containing CaPO4, since the calcium concentration in the solution is suppressed by the precipitation of CaCO3, increasing PO4 concentration in solution. Neutral and slightly acid soils (pH 6.0 to 7.0) may contain both Ca- and Al-phosphates. The NaHCO3 extractant can remove Ca-phosphates and phosphate adsorbed on the surface of calcium and magnesium carbonates along with Al-phosphates and is considered the most suitable extractant for these soils. -
Brochure, flyer, fact-sheetStandard operating procedure for soil moisture content by gravimetric method 2023
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No results found.Soil moisture content is one of the fundamental properties used in making decisions related to soil management, such as land preparation, design of irrigation and drainage systems, construction, and risk management. Analytically, determination of air-dry moisture content (i.e. remaining moisture in soil, dried for laboratory analysis) is important, since it is used to express the results of other tests (e.g. carbon, nitrogen, phosphorus, etc.) on an oven-dry basis. Soil moisture content analyzed by the gravimetric method has low operational difficulty and can be used for multiple purposes. -
Brochure, flyer, fact-sheetStandard Operating Procedure for soil calcium carbonate equivalent - titrimetric method 2020
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GLOSOLAN 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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