Satellite Trials (STs) are farmer-managed trials conducted in existing cocoa plantations. These trials evaluate, under real farming conditions, the effects of good agricultural practices and improved nutrient supply on cocoa bean yield. The first generation of STs aims to assess the impact of optimized cocoa tree management and nutrient supply. A new system for estimating cocoa nutrient demand is compared with existing fertilizer recommendations. The trials measure growth, pod set, and bean yield responses to both fertilizer regimes against an unfertilized control, considering interactions with shade levels and management practices. The primary goal is to validate fertilizer recommendations in farmers’ fields across diverse environments, providing site-specific and reliable guidance to increase cocoa production profitably. Farmers, together with technicians, apply insecticides, fungicides, and fertilizers, conduct weeding, sanitary pruning, structural pruning, and take measurements of tree growth, shade levels, and cocoa bean production. Satellite Trials Sites Trial country Host company Number of trials Nigeria OLAM 24 OLATUNDE 19 Tulip 10 Ghana Kuapa Kokoo 67 OLAM 17 Rockwind/TransRoyal 33 Mondelez 20 Cote d'Ivoire OLAM 64 Mondelez 39 Cargill 30 Cameroon OLAM 64 Repository Structure ├── 1_data_collection_protocols/ │ └── Contains agronomical protocols for data collection. │ ├── 2_data_collection_forms/ │ └── Includes data collection forms designed in XLSX format and rendered via ODK Collect. │ ├── 3_data_percountry/ │ └── Contains country-specific trial datasets. │ └── 4_plot_boundary/ └── Includes spatial designs and plot boundary shapefiles.