广西中东部9县区农田土壤Se输入通量研究

陈雪, 杨忠芳, 陈岳龙, 杨琼, 王磊, 韦雪姬

Selenium input flux in farmland soil of 9 counties in the middle east of Guangxi

Xue CHEN, Zhong-Fang YANG, Yue-Long CHEN, Qiong YANG, Lei WANG, Xue-Ji WEI

表3 广西中东部9县区肥料中Se及重金属元素含量平均值10-6

Table 3 Average contents of Se and heavy metals in fertilizers in the study area10-6

肥料种类 样品数 Se As Cd Cr6+ Hg Pb 复合肥 125 0.13 16.03 0.46 13.43 0.07 3.90 氮肥 35 0.02 5.23 0.02 1.95 0.01 0.60 磷肥 10 1.59 88.83 1.06 111.13 0.51 151.24 钾肥 26 0.04 0.80 0.01 1.41 0.01 0.75 有机肥 12 0.67 5.42 0.60 19.21 0.14 9.87