Raphiou Maliki et al. 2021. Research on Dry Matter Production, Nutrient Cycled and Removed as Well as Soil Fertility Changes in Yam-Based Cropping Systems with Herbaceous Legumes in the Guinea-Sudan Zone of Benin. New Ideas Concerning Science and Technology Vol. 12. (May 2021), 87–108. DOI:https://doi.org/10.9734/bpi/nicst/v12/3461D.