Field experiments on crop response to lime rates in Rwanda (year 2)

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.

Sixteen 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, while yields measured in the second year allow evaluation of the residual effects of the initial lime treatment. This dataset contains plot-level yield measurements for maize, common beans, and potatoes collected during the first and second years 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: