利用ICP-AES分析大豆体内Mn和Zn分配及收支平衡  

Analysis on Concentration,Distribution and Budgets of Mn and Zn in Soybean by Using ICP-AES

作　　者：周桦[1] 姜春明[1] 徐永刚[1] 马强[1] 

机构地区：[1]中国科学院沈阳应用生态研究所,辽宁沈阳110016

出　　处：《光谱学与光谱分析》2013年第4期1112-1115,共4页Spectroscopy and Spectral Analysis

基　　金：国家科技支撑计划课题项目(2012BAD05B01);国家自然科学基金项目(41171242;31070547);教育部重点实验室开放基金项目(ERCERR08014);辽宁省自然科学基金项目(201102225)资助

摘　　要：长期定位试验和ICP-AES测试相结合,研究了下辽河平原土壤有效Mn和Zn浓度变化以及不同施肥制度下大豆体内Mn和Zn浓度与含量的变化。结果表明:下辽河平原土壤有效Zn浓度已濒临临界值,应加强对其监测;大豆籽实和秸秆体内Zn浓度受施肥影响变化较小;而籽实中Mn浓度受施肥影响变化较大,且NPK和NPKO处理显著高于O和CK处理;养分循环再利用在增加大豆生物量的同时,Mn和Zn携出亦呈增加趋势;土壤-作物系统中,Mn和Zn均出现收支赤字,其赤字大小顺序为NPKO<O<CK<NPK,表明养分循环可以显著减缓这种赤字,使生态系统更可持续。The concentration and distribution of Mn and Zn in soil and soybean in lower reach of Liaohe River Plain were investigated with ICP-AES analysis.The results showed that the available Zn in soils was close to the critical value and the monitoring should be strengthened.Zn concentration in seed and stalk,coupled with Mn in stalk,was not affected by fertilization types,while Mn concentration in seed under NPK and NPKO treatments was significantly higher than that with O and CK treatments.Application of organic and inorganic fertilizer increased crop biomass,and consequently increased Mn and Zn storage in soybean.In soil-crop system,Mn and Zn under different fertilization regimes showed budget deficit,with the deficit order of NPKOOCKNPK,indicating that nutrient cycling could decrease the deficit significantly and keep the ecological systems more sustainable.

关 键 词：MN ZN 大豆 分配 收支 

分 类 号：S181[农业科学—农业基础科学]