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口服亚硒酸钠片预防克山病,已取得了肯定的效果,但是,需月服3次,年服7～9个月,群众不易坚持,难以达到全程足量,故往往影响预防效果。我们于1975年提出改粮预防的建议,即选择作物吸硒能力最强的生育期(称为喷施适宜生育期),把亚硒酸钠水溶液用一般农用喷雾器喷洒在作物的茎叶上,通过作物的表面吸收,增加作物种籽内硒元素的含量(这样生产的粮食简称硒粮),让病区人民通过吃硒粮给机体补硒来预防克山病。1976年以来,我们与西安医学院、延安地区地方病防治所及基层卫生单位协作进行了这项试验,首先在陕西省延安地区的重病区富县、黄陵县、宜君县共20个生产队给万亩农田喷硒让5
Oral sodium selenite tablets prevention Keshan disease, has achieved certain results, however, to be on the service three times a year for 7 to 9 months, the masses are not easy to adhere to, it is difficult to achieve full full, it often affects the prevention effect. In 1975, we proposed the proposal of crop rotation prevention. That is, we chose the most suitable growth period for crop selenium (called the proper growth period for spraying), spray the aqueous solution of sodium selenite on the stems and leaves of the crop with a general agricultural sprayer, Through the surface absorption of crops, increase the content of crop seeds selenium (so-called food production of selenium grain), so that ward people eat selenium grain to the body selenium to prevent Keshan disease. Since 1976, we carried out this experiment in collaboration with the Xi’an Medical College, the Endemic Disease Prevention and Control Section of Yan’an Prefecture and grass-roots health units. First, we have 20 production teams in Fuxian County, Huangling County and Yijun County in the Yan’an area of Shaanxi Province To mu acres of farmland spray let 5