Farmers’ challenges on chili farming in the acid dry land : A case study from Pasir Madang-Bogor Regency, IndonesiaAsma Sembiring, Rofik Sinung Basuki, Rini Rosliani and Suwarni Tri RahayuE3S Web Conf., 316 (2021) 03010DOI: https://doi.org/10.1051/e3sconf/202131603010