热带作物学报2017，Vol.38Issue(1)：24-27,4.DOI:10.3969/j.issn.1000-2561.2017.01.005
施硒对紫云英硒积累及土壤硒状况的影响
Effects of Selenium Application on Selenium Accumulation of Astragalus sinicus and Selenium Status in Soils
摘要
Abstract
An experime nt was carded out to study the effects of applying selenium with different seven concentrations (0,0.5,1,2,4,8,16,32 mg/kg) on selenium accumulation of Chinese milk vetch (Astragalus sinicus) and selenium status in soils.The results indicated that selenium application did not exert its significant positive influence on stem diameter and height,and biomass.However,Chinese milk vetch selenium content was increased with the increment in the selenium supplementation level,and there were greatly significant correlation (r=0.99") between them.The utilization rate of selenium fertilizer was decreased with the increment in the selenium supplementation level,and the utilization rates of selenium fertilizer were 0.89％-3.25％ under different treatments.The concentrations of total selenium and available selenium in soil were increased with the increment in the selenium supplementation level,but the residual rate of selenium in soil had the opposite trend,and the residual rates of selenium were 41.82％-82.64％ under different treatments.关键词
硒/紫云英/土壤/吸收/积累Key words
selenium/Astragalus sinicus/soil/absorption/accumulation分类
农业科技引用本文复制引用
吴一群,林琼,颜明娟,陈子聪,张辉,高洋帅..施硒对紫云英硒积累及土壤硒状况的影响[J].热带作物学报,2017,38(1):24-27,4.基金项目
省公益专项“茶树对硒的吸收利用研究”(No.2015R1022-1) （No.2015R1022-1）
福建现代农业(茶叶)技术体系. （茶叶）
