1. Department of Crop Science and Technology, College of Agriculture, South China Agricultural University, Guangzhou 510642, China
2. Rokupr Agricultural Research Centre (RARC), Sierra Leone Agricultural Research Institute (SLARI), PMB 1313, Freetown, Sierra Leone
3. Department of Environmental Science and Engineering, College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
4. Magbosi Land, Water and Environment Research Centre (MLWERC), Sierra Leone Agricultural Research Institute (SLARI), PMB 1313, Freetown, Sierra Leone