Volume- 1
Issue- 3
Year- 2014
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Liu Aiju , Li Menghong , Wang Honghai
Antibiotics and heavy metals are often co-occurrence in animal feces/manures, and then are detected to coexist in soil and organic fertilizer samples. To evaluate the interactive effects of antibiotics and heavy metals on soil microbial ecology, the present study investigated the effects of sulfomethoxazole singly or in combination with Copper (Cu) on soil function and its bio-availability in soil. Results showed that there was a higher bioavailability at the initial time of test, and it was lithely affected by Cu addition in the whole investigation. The inhibition of SMX on urease and soil nitrification increased with the increase of SMX spiking levels without Cu co-addition or not. When applied together, the negative effects on urease activity were lighter compared to that in the SMX single treatments.However,cooccurrence of SMX and Cu had more serious inhibition than SMX single treatments did on soil potential nitrification rate.
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School of Recourse and Environmental Engineerin, Shandong University of Technology, 12 Zhangzhou Road, Zibo 255049, China;
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