【摘要】 <正> 核试验产生的放射性落下灰,核工业产生的放射性三废,从多种途径进入土壤,造成土壤的放射性污染。污染土壤的放射性元素,可通过植物转移到人的身体里,危害人体健康。植物从土壤中吸收放射性核素的多少,取决于核素类型、土壤理化性质、植物种类、耕作措施及气象、生物等因素。探索降低和去除土壤及其农产品放射性污染的措施,是很有意义的。更多还原

【Abstract】 The effects of three groups of soils and two kinds of fertilizers on the uptake of ⁹⁰Sr by spring wheat were investigated. It has been found that the contents of ⁹⁰Sr in seeds,glumes,stems and leaves of spring wheat from loam were 9.1,6.5,5.1.and 6.6 bold than that in from phaiozem.The content of ⁹⁰Sr in spring wheat from Beijing castanozem was a little bit higher than that from phaiozem.NHA inhibits ⁹⁰Sr uptake rate from castanozem while NPK fertilizers obviously stimulate the ⁹⁰Sr uptaeke rate by spring wheat.更多还原