嘉善县水稻土和稻米的硒含量状况及提高稻米硒水平的研究  

Selenium Content Status of Paddy Soils and Rice and Raising Selenium Content of Rice Grain in Jiashan County, Zhejiang province

作　　者：姚鼎汉 杨春雄 严强[1] 李英[2] 董振之 

机构地区：[1]浙江省嘉善县农林局,314100 [2]浙江医科大学,杭州310006

出　　处：《科技通报》1992年第6期358-362,共5页Bulletin of Science and Technology

摘　　要：对嘉善县水稻土和稻米的硒含量进行了分析.水稻土的有效态硒含量为9.52±2.26ppb,稻米硒平均为0.029±0.006ppm,普遍低于0.040ppm.提高稻米硒的田间试验表明,在水稻齐穗期喷施20ppm亚硒酸钠,可使稻米硒水平提高3～4倍,早、晚稻的稻米硒含量分别为0.197±0.149ppm和0.153±0.101ppm.This paper elucidates that the main reason of extensive seienium inadequancy in rice (≤0.04ppm) is the low content of effective selenium in paddy soils (<10ppb) in Jiashan County according to the measurements of selenium content of paddy soils and rice grain. A method of raising selenium level in rice grain by foliar sprays with sodium selenite solution is put forward.

关 键 词：水稻 硒 土壤 

分 类 号：S511.106.1[农业科学—作物学]