Cropping systems change the concentration of microelements in soils

References

• Du , H.L. , Feng , L.R. and Guo , P.Y. 2005 . Experimental study on the changes of nutrient salt and trace element contents in soils of a vegetable greenhouse for different cultivation years . Transactions of the CSAE , 21 : 127 – 130 .
   Google Scholar
• He , H.C. , Ju , Z.H. , Yue , Y.J. and Liu , Y.P. 2004 . Analysis on roles of zinc and calcium content in children's hair as ages change . Chinese Journal of Clinical Rehabilitation , 8 : 3692 – 3693 .
   Google Scholar
• Huang , Z.Y. , Zhang , Q. , Hu , K. , Wu , J.L. and Yang , P.Y. 2003 . Determination of ultra-trace Au, Pd and Pt in geochemical samples by co-precipitation ICP/MS . Spectroscopy and Spectral Analysis , 23 : 962 – 964 .
   Web of Science ®Google Scholar
• Hu , K.L. , Zhang , F.R. , Lu , Y.Z. , Wang , R. and Xu , Y. 2004 . Spatial distribution of concentrations of soil heavy metals in Daxing county, Beijing . ACTA Scientiae Circumstantiae , 24 : 463 – 468 .
   Google Scholar
• Jiang , Y. , Zhang , Y. and Liang , W. 2005 . Influence of greenhouse vegetable cultivation on composition soil exchangeable base cations . Journal of Soil and Water Conservation , 19 : 78 – 81 .
   Google Scholar
• Jing , J. , Han , C. , Zhao , X. , Guo , J. and Zhang , J. 2003 . Study of selenium on anticancer and antioxidative effect in mice with tumour . Acta Nutrimenta Sinica , 25 : 272 – 274 .
   Google Scholar
• Wang , Y. , Qin , J. , Xiu , X. , Wu , S. , Yan , L. , Tu , J. and Gao , R. 1989 . Study on the relation of Se, Mn, Fe and Mo to liver cancer mortality . Nuclear Techniques , 12 : 614 – 619 .
   Google Scholar
• Wei , X. , Hao , M. and Shao , M. 2005 . Effects of long-term cropping on the forms and the availability of micronutrients in dryland soils on the Loess Plateau . ACTA Ecologica Sinica , 25 : 3196 – 3203 .
   Google Scholar
• Xu , G.F. and Wang , H.M. 2001 . Inductively coupled plasma mass spectrometry (ICP-MS) and its application in life science . Plasma Science and Technology , 3 : 921 – 925 .
   Google Scholar
• Yang , Z.Y. and Tang , J.M. 2005 . Determination of multi-elements in food by ICP-MS with open vessel microwave digestion . Chinese Journal of Spectroscopy Laboratory , 22 : 322 – 328 .
   Google Scholar
• Zhao , S. , Mei , D. , Chen , G. , Yuan , J. , Ni , G. Wang , W. 2005 . Distribution and variation of microelements in soils in south-west Hubei . Soils , 37 : 674 – 678 .
   Google Scholar