ISFM+ promotes the use of integrated soil fertility management (ISFM) in the Ethiopian highlands. Vermiculture or vermicomposting is a technology which utilizes red earthworms (Eisenia fetida) to break down organic residues in order to produce nutrient-rich compost plus worms for sale or poultry feed. Farmers build wormboxes using locally available materials and ensure the five essentials for vermicomposting: bedding material (carbon source), feeding (plant material and dung), good ventilation (oxygen), stable humidity (moisture content of 60-70%) and fitting temperatures (15-35°C). ISFM+ applies a partnership approach in which partners play key roles in implementing various activities. The project uses a cascading train-the-trainer approach to capacitate partners and anchor technologies and approaches into regional extension packages. It employs a participatory learning and extension approach and encourages local multiplication of earthworms.