安徽农业科学2011，Vol.39Issue(20)：12031-12033,3.
叶面喷硒对水稻含硒量的影响
Effect of Foliar Application of S on Se Content in Rice
摘要
Abstract
[Objective] Sodium selenite was sprayed on the leaves of rice to study the effect of Se content in each parts of rice. [ Method] Different concentrations of sodium selenite were sprayed to rice leaves in filed randomized block experiments; AFS method was used for the determination of selenium in rice's various parts at different periods. [ Result] The results showed that foliar application of selenium can significantly increase Se content in rice, and with the increasing of sprayed Se concentration, Se content in rice also increased. Se content in leaves were increased 544.7% from 0. 85 mg/kg to 5.48 mg/kg, stems were increased 842. 8% from 0.14 mg/kg to 1.32 mg/kg, paddy were increased 1 575.0% from 0.12 mg/kg to 2.01 mg/kg, rice were increased 4 466.7% from 0.03 mg/kg to 1.37 mg/kg. But after treated,Se content of leaves in low concentration treatment (50 mg/kg) decreased in the early stage and increased little in late stage. Se content of leaves in other treatments decreased with the delay of sampling time. Se content in the stems and grain increased during the early stage, then reduced during in late stage. [Conclusion] It can satisfy the requirement of rich Se rice by spraying 100 mg/kg sodium selenium.关键词
叶面喷硒/水稻/含硒量Key words
Foliar application of selenium/ Rice/ Selenium content分类
农业科技引用本文复制引用
张晶,李向民,孙晶..叶面喷硒对水稻含硒量的影响[J].安徽农业科学,2011,39(20):12031-12033,3.基金项目
陕西省重大科技创新项目. （）
