<；P>；PROBLEM TO BE SOLVED: To provide a method for manufacturing a plant growth accelerator at a low cost and with high efficiency where remarkable growth acceleration effects comparing with conventional plant growth accelerators can be expected, the plant growth accelerator obtained by the method, a fertilizer containing the plant growth accelerator and the plant growth accelerator effective for plant growth by mixing the plant growth accelerator in a fertilizer. <；P>；SOLUTION: The method for manufacturing the plant growth accelerator characterized by having a step that carrageenan, artificial zeolite, hormesis ultrafine powders which generate a large amount of negative ions, a decomposed and concentrated liquid of fish internal organs and a muscovado solution are mixed and aerobically fermented and the plant growth accelerator obtained by using the method are provided. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
