Compost from organic waste can cover 21% of the nutrient demand in urban soils with a strong cut in environmental impact. Photo: Oh-Barcelona.com Attribution 2.0 Generic CC BY 2.0 Deed

Compost can be an alternative to chemical fertilisers in urban agriculture

Compost made from organic waste could replace 21% of industrial fertilisers used in urban agriculture, says a study by the University of Barcelona UAB

Re Soil Foundation