[Effects of exogenous tetracycline on rape soil enzyme activity and rape quality] Ying yong sheng tai xue bao = The journal of applied ecology / Zhongguo sheng tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong sheng tai yan jiu suo zhu ban [Ying Yong Sheng Tai Xue Bao] Journal article

Title	[Effects of exogenous tetracycline on rape soil enzyme activity and rape quality]
Author(s)	Liu JQ, Zhuge YP, Cui LN
Institution	College of Resources and Environment, Shandong Agricultural University, Tai' an 271018, Shandong, China. liujiqiang-007@163.com
Source	Ying Yong Sheng Tai Xue Bao 2009 Apr; 20(4):943-8.
Abstract	This paper studied the effects of applying different concentration (0, 0.30, 0.60, and 0.90 mg x kg(-1)) tetracycline on the soil enzyme activities and rape quality. The results showed that soil urease activity after applied 0.30, 0.60, and 0.90 mg x kg(-1) of tetracycline and soil suerase activity after applied 0.90 mg x kg(-1) of tetracycline were inhibited in the whole cultivating period, while the soil sucrase activity after applied 0.30 and 0.60 mg x kg(-1) of tetracycline showed a trend of activation-inhibition-activation. Soil proteinase activity showed a trend of inhibition-activation, and the extent and duration of the inhibition and activation had significant positive correlations with tetracycline concentration (r = 0.950 * *). Soil catalase activity showed activation first and turned to irregular then. The action duration of tetracycline on the activities of soil urease, catalase, sucrase and proteinase were 7 weeks, 6-8 weeks, 7 weeks, and 6-7 weeks, respectively. At harvest time, the soluble sugar contents in rape leaves after applying 0.30, 0.60, and 0.90 mg x kg(-1) of tetracycline decreased dramatically by 91.99%, 87.92%, 90.12%, while the soluble protein content increased by 26.47%, 28.13%, and 23.22%, respectively, compared to the control.
Language	chi
Pub Type(s)	English Abstract Journal Article
PubMed ID	19565779

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