PROBLEM TO BE SOLVED: To provide a method for drying coated granulated seeds without degrading germination performance regardless of drying season and place.SOLUTION: The method for drying the coated granulated seeds includes a first step for drying the water-containing coated granulated seeds with feed air having an absolute humidity of ≤14 g/kg (DA: Dry Air) and a second step for further drying the coated granulated seeds obtained by the first step with feed air at ≤50°C. Here, preferably the temperature of the feed air in the first step is <50°C from the viewpoint of further suppressing reduction in germination performance, etc., of the coated granulated seeds. Preferably the coated granulated seeds are dried to the vicinity of limit moisture content of the coated granulated seeds in the first step. Preferably the coated granulated seeds are dried to the vicinity of equilibrium moisture content of the coated granulated seeds in the second step.COPYRIGHT: (C)2012,JPO&INPIT【課題】乾燥させる時季や場所などにかかわらず、発芽性能を劣化させることなく被覆造粒種子を乾燥させる方法を提供する。【解決手段】水分を含有する被覆造粒種子を、絶対湿度が14g/kg(DA:Dry Air)以下の供給空気で乾燥させる第1工程と、第1工程によって得られた被覆造粒種子を温度50℃以下の供給空気でさらに乾燥させる第2工程とを設ける。ここで、被覆造粒種子の発芽性能等の低下を一層抑える観点からは、第1工程における供給空気の温度を50℃未満とするのが好ましい。また、第1工程において被覆造粒種子の限界含水率近傍まで被覆造粒種子を乾燥させるのが好ましい。そしてまた、第2工程において被覆造粒種子の平衡含水率近傍まで被覆造粒種子を乾燥させるのが好ましい。【選択図】図1
