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Acta Prataculturae Sinica ›› 2013, Vol. 22 ›› Issue (5): 37-43.DOI: 10.11686/cyxb20130505

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Analysis of available nutrients contents in Suniteyou Banner pasture soils

TA Na1,2, NA Ri-su1,2, WANG Hai1,2, SHI Tao1,2   

  1. 1.Grassland Research Institute of Chinese Academy of Agricultural Science, Hohhot 010010, China;
    2.Key Laboratory of Grassland Resources and Ecology, Ministry of Agriculture, the People’s Republic of China, Hohhot 010010, China
  • Online:2013-10-20 Published:2013-10-20

Abstract: The study of surface soil available nutrients (total N, P, K, Ca, Mg, S, Fe, Mn, Cu, Zn, B and Mo) contents and the correlations with soil organic matter and pH value was conducted in 8 styles among of 6 types of grassland from Suniteyou Banner. The results showed as follows, 1) The soils from study area belong to alkaline soil, pH was (8.84±0.23). The content of soil organic matter and total N was low, averaged in (9.92±4.65) g/kg and (0.46±0.25) g/kg respectively. The accumulation of soil available nutrients displayed an order as River pan and lake basin lowlands salt meadow pasture>“Stipa klemenzii+Cleistogenes songorica+Allium” in desert steppe pasture>Dune vegetation pasture. The content of soil available nutrients in River pan and lake basin lowlands salt meadow pasture was significantly higher than those in other grassland types. 2) Soils were rich in K but lack of B and Mo seriously. Soil in different grassland types showed in lack of trace elements except of River pan and lake basin lowlands salt meadow pasture. 3) Soil pH value displayed significant negative correlation with available N, P, Ca, Mn and Cu. On the contrary, soil organic matter showed significant positive correlation with available N, P, Ca, S, Fe, Mn and Cu.

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