广西中东部9县区农田土壤Se输入通量研究
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Selenium input flux in farmland soil of 9 counties in the middle east of Guangxi
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图4. 广西中东部9县区农田土壤Se及重金属施肥平均输入通量 |
Fig.4. The average fertilization flux of Se and heavy metals in 9 counties of the middle east of Guangxi |
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