Patent ID: 7785705

Claim:
A particulate flower thinning agent which comprises a preparation of a mixture of an inorganic compound of poor water solubility with an additive, the inorganic compound being at least one kind selected from silica, calcium carbonate, zeolite, magnesium phosphate, and magnesium carbonate, and the additive being at least one kind selected from condensed phosphoric acid and a salt thereof, lecithin, sterol, amino acid, and sucrose fatty acid ester, wherein the particulate flower thinning agent satisfies the following relationships of (a), (b) and (c): 1.2≦P≦30 (a) 3≦Q≦800 (b) 0.5 ≦Q/P≦ 1000 (c) P: average particle diameter (μm) measured by SALD-2000A laser type particle size distribution meter Q: BET specific surface area (m 2 /g) measured according to the nitrogen adsorption method.