SULFUR-COATED SOIL CONDITIONER

PROBLEM TO BE SOLVED: To obtain a soil conditioner which acts as an acidity-adjusting agent and also exhibits soil-conditioning effects in a green of a sand-base structure by causing at least a part of the surface of porous ceramic particles to carry sulfur. SOLUTION: Zeolite, vermiculite, perlite and bentonite are preferable porous ceramics. When used for conditionig the floor soil of a putting green, a teeing ground, or the like, of a golf cource, porous sintered ceramics sintered at high temperatures and having high strengths are the most preferable, preferable examples being a sintered natural or synthetic zeolite and a silica-alumina base sintered ceramic obtained by sintering a molded fine powder derived from foundry sand. The coating with sulfur is carried out by spraying molten sulfur to porous ceramic particles with an apparatus such as a rotary drum coater. The conditioner is scattered on a lawn surface together with a fertilizer and new sand supplied as topdressing. When the conditioner is applied in floor soil, the pH of sand decreases from 7.7 to 6.5 and further to about 6.0.