Field experiments on crop response to lime rates in Rwanda (year 1)
Year: 2026
Type: dataset
Abstract: This dataset was generated as part of the Guiding Acid Soil Management Investments in Africa (GAIA) project, which aims to support evidence-based investments in acid soil management across sub-Saharan Africa. Within this project, researcher-managed on-farm trials were established to quantify crop yield responses to increasing lime application rates. The experimental design followed a randomized complete block design (RCBD) within each participating farm. Nine farms were selected to host the trial, and seven lime application rates were tested within each farm. Lime was applied at the onset of the trial (Year 1). There were three blocks per farm. Blocks were relabelled when the former could not be identified in subsequent season or year. Incomplete, isolated or missing blocks in a farm result either from data missingness or farm misidentification. Crop yields measured during the first year capture the direct response to lime application. This dataset contains plot-level yield measurements for maize, common beans, and potatoes collected during the first year after trial establishment in Rwanda. Predicted soil properties associated with the experimental sites are available from external datasets and can be linked through the soil sample unique identifier (SSN). These soil datasets are available at: Predicted Soil Properties Dataset: hdl:11529/10549138 Predicted Soil Properties Dataset: doi:10.71682/10549329 To facilitate interoperability and harmonization of agronomic terminology, a lookup table is provided that maps variable names and terms used in this dataset to the terminology defined in the terminag GitHub repository. Data from the second year are available in the related dataset: https://doi.org/10.71682/10549436.
DOI: 10.71682/10549434
Institutions: Centro Internacional de Mejoramiento de Maíz Y Trigo, International Maize and Wheat Improvement Center, International Maize and Wheat Improvement Center, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Rwanda Agriculture Board, World Agroforestry Centre
Language: English
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: green
OpenAlex ID: W7213630253