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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. -
Book (stand-alone)Technical bookStandard operating procedure for soil enzyme activities
β-glucosidases, arylsulfatase, N-acetyl-β-glucosaminidase, dehydrogenase, phosphomonoesterases
2025Also available in:
No results found.This standard operating procedure (SOP) has been harmonized by the joint working group of the FAO's Global Soil Laboratory Network (GLOSOLAN) and the International Network on Soil Biodiversity (NETSOB). The protocol focuses on the determination of five soil enzyme activities: β-Glucosidases, Arylsulfatase, N-acetyl-β-Glucosaminidase, Dehydrogenase, and Phosphomonoesterases. After a general introduction on the importance of soil enzyme as key indicator for soil health and few remarks on the sampling strategies, the determination of each enzyme is presented separately with step-by-step instructions. -
BookletTechnical briefStandard operating procedure for soil organic matter using the loss on ignition method 2026
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No results found.This standard operating procedure (SOP) provides a harmonized method for determining soil organic matter (SOM) content using the loss on ignition (LOI) technique. SOM is a key indicator of soil health, influencing nutrient dynamics, water retention, soil structure, and overall ecosystem functioning. The LoI method offers a simple, cost-effective, and widely accessible alternative to wet chemistry and instrumental carbon analysis, relying on the mass loss of a dried soil sample following controlled ignition at 550°C. This SOP outlines the method’s scope, principles, required equipment, safety considerations, sample preparation steps, analytical procedure, calculations, and quality assurance measures. While LoI provides reliable estimates particularly for soils with moderate to high organic matter content, the procedure also highlights limitations and potential sources of bias such as structural water loss in clays and incomplete oxidation, that laboratories must manage to ensure accuracy. By standardizing the LoI approach across laboratories and regions, this SOP aims to strengthen the comparability, consistency, and quality of SOM data used for soil monitoring, research, and sustainable land management.
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BookletCorporate general interestEnabling young rural women to participate in rural transformation in East and Southern Africa 2019
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No results found.This paper looks at the main characteristics of rural transformation and the current lives of young rural women in East and Southern Africa, and identifies the key actions necessary to ensure that they have equal opportunities to participate in, and benefit from, the process of rural transformation. -
BookletCorporate general interestEmissions due to agriculture
Global, regional and country trends 2000–2018
2021Also available in:
No results found.The FAOSTAT emissions database is composed of several data domains covering the categories of the IPCC Agriculture, Forestry and Other Land Use (AFOLU) sector of the national GHG inventory. Energy use in agriculture is additionally included as relevant to emissions from agriculture as an economic production sector under the ISIC A statistical classification, though recognizing that, in terms of IPCC, they are instead part of the Energy sector of the national GHG inventory. FAO emissions estimates are available over the period 1961–2018 for agriculture production processes from crop and livestock activities. Land use emissions and removals are generally available only for the period 1990–2019. This analytical brief focuses on overall trends over the period 2000–2018. -
DocumentNormative documentNIMF 15. Reglamentación del embalaje de madera utilizado en el comercio internacional
Adoptado en 2018
2019La presente norma describe las medidas fitosanitarias que disminuyen el riesgo de introducción y/o dispersión de plagas cuarentenarias asociadas con la movilización en el comercio internacional de embalaje de madera fabricado de madera en bruto. El embalaje de madera regulado por esta norma incluye la madera de estiba, pero excluye el embalaje fabricado con madera procesada de tal forma que quede libre de plagas (por ejemplo, madera contrachapada). Las medidas fitosanitarias descritas en esta norma no tienen el propósito de prestar protección continua contra las plagas contaminantes u otros organismos.