To solve such problems having significant effect on the management cost of a golf course when sand such as river sand, pit sand and sea sand are used for the topdressing soil for greens that the particle size of the sand is required to be uniform, that bacterial pathogens of a lawn which stick to the surface of the sand or penetrate into the sand and seeds of weeds or eggs of harmful bugs must be exterminated, and that the sand is required to be dry.

The joint soil for greens is obtained by burning/crushing/rounding/separating and recovering glass cullet by the topdressing soil manufacturing apparatus 1 for a green provided with a burning device 3, a crushing device 4 and a screening device 5.