The present invention pertains to: a paddy-rice seed that includes at least one type of powder selected from among metal oxides (brown iron oxide, zinc oxide, and tin oxide)； a method for manufacturing a coated paddy-rice seed by spraying a resin emulsion onto a mixture of the powder containing the metal oxide and the paddy-rice seed, and drying after forming on the rice-seed surface a coating layer including the metal oxide powder and the resin emulsion； a method for manufacturing a coated paddy-rice seed by mixing the paddy-rice seed and an emulsion paste including a resin that includes the metal oxide powder, and drying after forming on the rice-seed surface a coating layer including the metal oxide powder and the resin emulsion； and a composition for a paddy-rice seed coating containing the metal oxide powder and the resin emulsion. According to the present invention, it is possible to provide a coated paddy-rice seed, a method for manufacturing same, and a composition for a paddy-rice seed coating, in which degradation of the paddy-rice seed due to heat generated during the coating step and later steps is substantially eliminated, coating operation efficiency is improved, and bird damage is unlikely.本發明係關於含有由金屬氧化物(褐色的氧化鐵、氧化鋅、及氧化錫)所選擇之至少1種粉體的水稻種籽；對含金屬氧化物的粉體與水稻種籽之混合物噴霧樹脂乳液，於種籽表面形成含金屬氧化物粉體與樹脂乳液的包覆層之後，進行乾燥的包覆水稻種籽之製造方法；混合處理水稻種籽與含金屬氧化物粉體的樹脂之乳液糊而在種籽表面形成含金屬氧化物粉體與樹脂乳液的包覆層之後進行乾燥的包覆水稻種籽之製造方法；以及含有金屬氧化物粉體與樹脂乳液的水稻種籽包覆用組成物。根據本發明，可提供可以本質上排除包覆步驟時及後處理時所產生的發熱導致水稻種籽的劣化，提高包覆作業效率，而且不容易受到鳥害的包覆水稻種籽、其製造方法以及水稻種籽包覆用組成物。
