石嘴山地区碱性土壤硒地球化学特征及生物有效性
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Geochemical characteristics and bioavailability of selenium in alkaline soil in Shizuishan area, Ningxia
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图3. 土壤有效硒及全硒含量散点图 |
Fig.3. Scatter plot of soil available selenium and total selenium content |
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