水稻田秧苗硫化氢中毒的事在生产上时有发生，造成死苗减产。防止硫化氢毒害对水稻增产具有重要意义。 　　受害症状：水稻移栽后秧苗遭受硫化氢毒害，返青迟缓，发根差，叶片黄褐色，下部叶片枯死。拔出稻苗根部有臭鸡蛋味，整个根系呈黑色或暗灰色，严重时根部腐烂。土壤板结 Rice seedling hydrogen sulfide poisoning in the production of things have occurred, resulting in dead seedlings cut. Preventing hydrogen sulfide poisoning is of great significance to increase yield of rice. Victims symptoms: seedlings after transplanting of rice poisoning hydrogen sulfide, retarded retarded, poor hair roots, leaves brown, the lower leaves withered. Pull out the roots of rice stinky egg flavor, the entire root was black or dark gray, severe root decay. Soil compaction