Disclosed is a coated rice seed having a coating layer on the surface of a rice seed, wherein: the coating layer includes calcium carbonate, and at least one type of copolymer selected from the group consisting of styrene-butadiene copolymers and methyl methacrylate-butadiene-styrene copolymers and the content of said calcium carbonate is 30-90 wt% to 100 wt% of said coated rice seeds. Thus, it is possible to provide coated seeds that are less susceptible to bird damage, and that do not have the problem of reduced germination rate as in conventional iron coatings.本發明可提供經被覆之種子,其特徵係在水稻種子表面具有被覆層而成之經被覆水稻種子,且前述被覆層含有碳酸鈣、與選自苯乙烯丁二烯共聚物及甲基丙烯酸甲酯-丁二烯-苯乙烯共聚物所成群之至少1種共聚物,而且相對於前述經被覆之水稻種子100重量%,前述碳酸鈣的含有量為30~90重量%之經被覆之水稻種子不易受鳥害,沒有以往發生在鐵被覆的發芽率低的問題。
