间作玉米大豆不同时期茎、叶矿质元素含量的测定  

Determination the mineral elements content of stem and leaves of intercropping maize and soybean at different stages

作　　者：李云仙[1,2] 李永梅 郑毅[3] 杨发忠[2] LI Yun-xian;LI Yong-mei;ZHENG Yi;YANG Fa-zhong(Faculty of Plant Protection, Yunnan Agricultural University （YAU）, Kunming 650201, Yunnan, China;Faculty of Chemical Engineering, Southwest Forestry University, Kunming 650224, Yunnan,China;College of Resources and Environment, Yunnan Agricultural University, Kunming 650201, Yunnan, China)

机构地区：[1]云南农业大学植物保护学院,云南昆明650201 [2]云南省西南林业大学化学工程学院,云南昆明650224 [3]云南农业大学资源与环境学院,云南昆明650201

出　　处：《粮食与油脂》2018年第5期71-74,共4页Cereals & Oils

基　　金：国家自然科学基金(31260504);云南省教育厅科学研究基金项目(2014Y329);国家林业局项目(2010104046)

摘　　要：采用湿法硝酸-双氧水进行消解,用电感耦合等离子体原子发射光谱法(ICP-AES)同时测定了玉米大豆间作条件下,不同生育期茎、叶中的镁、钙、钾、磷、铜、锰、硫、硒、锌等元素的含量,并对其含量进行研究。试验结果表明:检出限为0.001~0.01μg/m L,回收率为92.0%~105.3%;玉米大豆间作与其单作相比,茎秆和叶片中矿质元素的含量具有一定的差异,提高了其茎、叶中微量元素的积累。Nitric acid and hydrogen peroxide worked with the samples digestion, the content of Mg、Ca、K 、P、Cu、Mn、S、Se and Zn in the stems and leaves of corn and soybean at different growth stages under the intercropping system were determined by inductively coupled plasma atomic emission spectrometry（ICP-AES）. Experimental results showed that the detection limit was 0.001-0.01μg/m L, and recovery rate reached to 92.0%-105.3%; Compared with single planting, the maize and soybean intercropping had certain advantages, which increased their trace elements accumulation in stem and leaf.

关 键 词：电感耦合等离子体原子发射光谱 玉米 大豆 间作 矿质元素 

分 类 号：TS210.1[轻工技术与工程—粮食、油脂及植物蛋白工程]