Fertilizer cargo is typically handled on a vessel using a system of conveyor belts or elevators. The fertilizer is usually loaded onto the ship using specialized cargo handling equipment, such as cranes or forklifts. Once on board, the fertilizer is typically stored in designated areas of the ship's hold or on its deck. During the voyage, the fertilizer may be moved around as needed to balance the ship's weight and ensure safe handling. Upon reaching the destination port, the fertilizer is unloaded using similar cargo handling equipment and transported to its final destination.