Working Document Series Open Access Efficacy of selected crop residues and rock phosphate in improving the quality of cattle manure R. Abaidoo, · B. Essel · N. Ewusi-Mensah · A. Opoku, Cattle manure is noted for its poor nutrient quality especially in Ghana where most cattle are fed on a free range. There is therefore a need to improve its quality since it is a vital nutrient resource for smallholder farmers. An experime… RUF-40556 2018 CC BY 4.0 28 Jul 2023
