The purpose of the present invention is to provide a gypsum fertilizer for blueberries and a method for suppressing blueberry abscission making it possible to suppress abscission of blueberry fruit without adversely affecting growth of the blueberry fruit and not only increasing the crop yield but also eliminating the need to frequently collect dropped fruits thus yielding a major practical effect. The foregoing is achieved by a gypsum fertilizer for blueberries that is characterized by containing gypsum having a BSA specific surface area of 15 000 cm/g or less as a main component and a method for suppressing blueberry abscission characterized by the use of the gypsum fertilizer for blueberries.
