Flux // UNCCD - Smallholder ERW Project 2024 -- Health and Safety Dataset

This dataset was generated via a study of the agronomic and social co-benefits of ERW deployments in Kisumu County, Kenya. Targeting women smallholder farmers, the research focuses on maize cultivation in nutrient-poor soils where traditional inputs like lime and fertilisers are often inaccessible due to cost constraints. The study involved 56 farmers, each with divided plots—one control and one treated with volcanic rock powder (nephelinite) sourced from a local quarry. The study demonstrated an average yield increase of 71.17% ± 15.5% and an aggregate yield increase of 47.47% ± 5.73% in maize yield on treatment plots compared with the control plots. Soil types present in this study include: vertisols, gleysols, xerosols, arenosols, and cambisols. This dataset includes Health and Safety data as defined by ERW Data Quarry: application rate and date, feedstock screen of metals, asbestos and asbestiform minerals, radioactivity, and soil levels of metals. For full details on the study, please refer to Flux’s white paper. https://www.researchgate.net/publication/385887254_Yield_Increases_for_Smallholder_farmers_in_Sub_Saharan_Africa_via_Enhanced_Rock_Weathering_Preliminary_results_from_a_smallholder_field_trial_in_Kisumu_County_Kenya For access to the full dataset, please visit ERW Data Quarry: https://cascadeclimate.org/blog/erw-data-quarry