Full name:
iSDA Africa Field Data
Version:
v.1
Organization or Author:
Abstract:
iSDA is an IT consulting service aiming to help smallholder farmers across Africa increase their productivity using advanced technologies while also improvIng their profitability and the well-being of their communities.
Founded by three research institutes - Rothamsted Research, the World Agroforestry Centre (ICRAF) and the International Institute of Tropical Agriculture (IITA) - iSDA is a mission-driven company carries forward the legacy of the African Soils Information Service (AfSIS).
ISDA has released a large dataset of analysed soil samples covering the African continent. These data are analysis-ready and do not require any preprocessing before usage. The dataset was collected and analysed according to protocols created by the African Soil Information Service (AfSIS) project (Vågen T-G et al., 2010). AfSIS was an initiative funded by the Bill and Melinda Gates Foundation, aimed at improving soil information across Africa. Data were collected and analysed between 2008 and 2020. In total, over 50,000 soil samples were collected across more than 15 countries.
Founded by three research institutes - Rothamsted Research, the World Agroforestry Centre (ICRAF) and the International Institute of Tropical Agriculture (IITA) - iSDA is a mission-driven company carries forward the legacy of the African Soils Information Service (AfSIS).
ISDA has released a large dataset of analysed soil samples covering the African continent. These data are analysis-ready and do not require any preprocessing before usage. The dataset was collected and analysed according to protocols created by the African Soil Information Service (AfSIS) project (Vågen T-G et al., 2010). AfSIS was an initiative funded by the Bill and Melinda Gates Foundation, aimed at improving soil information across Africa. Data were collected and analysed between 2008 and 2020. In total, over 50,000 soil samples were collected across more than 15 countries.
Service location:
Geographical Coverage:
Continental - Africa
GIS Data Type:
Vector - Point
Spatial resolution:
-
Publication date:
2023
Reference period-start:
2008
Reference period-stop
2018
License:
Soil Properties:
Potassium, Phosphorus, Boron, Sulfur, Copper, Manganese, Zinc, Sodium, Nitrogen, Iron, Organic Carbon Content, Carbon Total, Calcium, pH, Electrical Conductivity, Aluminium, Magnesium
Soil deph coverage (cm):
0-50 cm
Overview
| Name | Original name | Unit of measurement | Description | Analytical method |
|---|---|---|---|---|
| Aluminium | aluminium_extractable | mg/kg | Aluminum, Mehlich3 extraction | Aluminium Mehlilch3 extraction |
| Boron | boron_extractable | mg/kg | Boron, Mehlich3 extraction | Boron Mehlich3 extraction |
| Calcium | calcium_extractable | mg/kg | Calcium, Mehlich3 extraction | Calcium, Mehlich3 extraction |
| Organic Carbon Content | carbon_organic | g/kg | Organic Carbon by combustion after acidification | Organic carbon by combustion after acidification |
| Carbon Total | carbon_total | g/kg | Total Carbon by combustion | Total carbon by combustion |
| Copper | copper_extractable | mg/kg | Copper, Mehlich3 extraction | Copper, Mehlich3 extraction |
| Electrical Conductivity | electrical_conductivity | dS/m | Electrical conductivity, Saturation Extract | Electrical conductivity, Saturation Extract |
| Iron | iron_extractable | mg/kg | Iron, Mehlich3 extraction | Iron, Melhlich3 extraction |
| Magnesium | magnesium_extractable | mg/kg | Magnesium, Mehlich3 extraction | Magnesium, Mehlich3 extraction |
| Manganese | manganese_extractable | mg/kg | Manganese, Mehlich3 extraction | Manganese, Mehlich3 extraction |
| Nitrogen | nitrogen_total | g/kg | Total Nitrogen by combustion | Total nitrogen by combustion |
| pH | ph_h20 | - | pH, measured in 1:1 soil-water suspension | Measured in 1:1 soil-water suspension |
| Phosphorus | phosphorus_extractable | mg/kg | Phosphorus, Mehlich3 extraction | Phosphorus, Mehlich3 extraction |
| Potassium | potassium_etractable | mg/kg | Potassium, Mehlich3 extraction | Potassium, Mehlich3extraction |
| Sodium | sodium_extractable | mg/kg | Sodium, Mehlich3 extraction | Sodium, Mehlich3 extraction |
| Sulfur | sulphur_extractable | mg/kg | Sulphur, Mehlich3 extraction | Sulphur, Mehlich3 extraction |
| Zinc | zn_extractable | mg/kg | Zinc, Mehlich3 extraction | Zinc, Mehlich3 extraction |