A container for controlling release of a soluble fertiliser comprising a first chamber (1) for collecting and holding water, and having an open top and a solid bottom with an orifice (12) that allows water flow freely at a desired rate； a second chamber (2) below the first chamber (1) for receiving water therefrom to dissolve fertiliser held therein, the second chamber (2) having a solid bottom with an orifice (22) through which fertiliser solution can flow in a controlled manner and a perforated plate (21) for holding undissolved fertiliser, the plate (21) is disposed within the chamber (2) and separating the chamber (2) into an upper compartment and a lower compartment； and a third chamber (3) below the second chamber (2) and receiving dissolved fertiliser therefrom, the third chamber (3) having a perforated bottom (31), the perforations are configured to allow the dissolved fertiliser to pass through while preventing foreign solid particles from entering the container.
