Soil loss due to harvesting of peanut and cassava under traditional farming systems: Cost implications of soil nutrient loss

Suarau Odutola Oshunsanya is an associate professor in the Department of Agronomy, University of Ibadan, Ibadan, Nigeria, and he also is the guest fellow in the Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China. Victor Manna Samson is a PhD student in the Department of Agronomy, University of Ibadan, Ibadan, Nigeria, and Department of Soil Science, Federal University of Agriculture, Makurdi, Nigeria. Hanqing Yu (corresponding author) is an associate professor in the Agricultural Clean Watershed Research Group, Institute of Environment and Sustainable Development in Agriculture, CAAS, Beijing, China.