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通过研究在不同含量外源汞土壤中施加不同量的氮肥,分析土壤中不同形态汞的转化状况。结果发现,施尿素0.4 g/kg(T3)能显著提高土壤活性,促进土壤中汞向有效态转化,同时可提高植物对土壤中汞的吸收;其余氮肥水平对土壤不同形态汞的转化活性依次为施尿素0.6 g/kg、施尿素0.2 g/kg、不施肥处理。
Through the study of applying different amounts of nitrogen fertilizer to different levels of exogenous mercury in soil, the transformation status of different forms of mercury in soil was analyzed. The results showed that applying urea 0.4 g / kg (T3) could significantly increase soil activity and promote the conversion of mercury to soil organic matter, and at the same time increase the mercury uptake by plants. Soil nitrogen To apply urea 0.6 g / kg, urea 0.2 g / kg, no fertilization treatment.