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单嘧磺隆对土壤呼吸脱氢酶和转化酶活性的影响

Keywords: 单嘧磺隆,土壤呼吸,土壤微生物,脱氢酶,转化酶

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Abstract:

通过室内培养研究了不同浓度单嘧磺隆对土壤呼吸强度和土壤脱氢酶活性、转化酶活性的影响。结果表明,单嘧磺隆的影响随单嘧磺隆浓度和作用时间的不同而异,田间推荐剂量下单嘧磺隆对土壤呼吸强度、土壤脱氢酶活性和转化酶活性没有显著持续不良影响。低浓度单嘧磺隆(4.0μg·g-1)在试验初期显著抑制土壤微生物活性,对土壤呼吸强度的抑制率最高为26.55%,培养12d以后抑制作用消失,土壤呼吸强度恢复到对照水平。极高浓度单嘧磺隆(25μg·g-1)显著抑制土壤转化酶和脱氢酶活性,在25d试验周期内抑制率分别为5.53%~51.72%和16.06%~21.76%。田间推荐剂量单嘧磺隆(0.025μg·g-1)对土壤转化酶有短暂的抑制作用,最高抑制率为20.23%,对脱氢酶没有明显影响。0.25和2.5μg·g-1单嘧磺隆在试验不同时期对土壤酶活性有轻微刺激作用或抑制作用。第8d时,单嘧磺隆显著抑制土壤转化酶活性,且抑制作用和单嘧磺隆浓度表现出正相关(r=0.95),试验结束时单嘧磺隆的影响减弱。

References

[1]  Dumontet S P,Perucci A Scopa,Ricciardi A.Sulfonylureas:Preliminary Study on the effect on selected microbial strains and soil respiration [J].Soil Sci,1993,1:193-198.
[2]  Junnila S,Heinonen-Tanski H,Ervio L R,et al.Phytotoxic persistence and microbiological effects of chlorsulfuron and metsulfuron in Finnish soils.[J].Weed Res,1994,34:413-423.
[3]  Dinelli G,Vicari A,Accinelli C.Degradation and side effects of three sulfonylurea herbicides in soil [J].Journal of Environmental Quality,1998,27:1459-1464.
[4]  Ismail B S,Yapp K F,Omar O.Effects of metsulfuron-methyl on amylase,urease,and protease activities in two soils [J].Aust JSoil Res,1998,36:449-456.
[5]  Perucci Piero,Vischetti Costantino,Battistoni Fabrizio.Rimsulfuron in a silty clay loam soil:effects upon microbiological and biochemical properties under varying microcosm conditions [J].Soil Biology and Biochemistry,1999,31(2):195-203.
[6]  Perucci P,Dumontet S,Bufo S A,et al.Effects of organic amendment and herbicide treatment on soil microbial biomass[J].Biology and Fertility of Soils ,2000,32(1):17-23.
[7]  E1-Ghamry A M,Huang C Y,Xu J M.Combined effects ot two sulfonylurea herbicides on soil microbial biomass and N-mineralization [J].Journal of Environmental Sciences,2001,13(3):311-317.
[8]  Allievi L,Gigliotti C.Response of the bacteria and fungi of two soils to the sulfonylurea herbicide cinosulfuron [J].J Environ Sci Health B,2001,36(2):161-175.
[9]  E1-Ghamry A M,Xu J M,Huang C Y,Gan J.Microbial response to bensulfuron-methyl treatment in soil[J].JAgric Food Chem,2002,50(1):136-139.
[10]  Michael J L.Environmental fate and impacts of sulfometuron on watersheds in the southern United States[J].J Environ Qual,2003,32(2):456-465.
[11]  Xie X M,Liao M,Huang C Y,et al.Effects of pesticides on soil biochemical characteristics of a paddy soil [J].J Environ Sci (China),2004,16(2):252-255.
[12]  Saeki Masao,Toyota Koki.Effect of bensulfuron-methyl (a sulfonylurea herbicide) on the soil bacterial community of a paddy soil microcosm[J].Biology and Fertility of Soils,2004,40(2):110-119.
[13]  李永红,高玉葆.土壤中单嘧磺隆对谷子生长及土壤微生物若干生化功能的影响[J].农业环境科学学报,2004,23(3):633-637.
[14]  李正名,贾国峰,王玲秀,等.防治玉米田杂草组合物[P].CN1106393A,1995.1-5.
[15]  姚斌,汪海珍,徐建民,等.除草剂对水稻土微生物的影响[J].环境科学学报,2004,(2):173-178.
[16]  蔡道基.农药对土壤微生物活性影响[A].见:蔡道基编著.农药环境毒理学研究[C].北京:环境科学出版社,1999.175-180.
[17]  中国科学院南京土壤研究所土壤微生物研究室.土壤微生物研究法[M].北京:科学出版社,1985.
[18]  G Carbonell,M V Pablos,P Garcia,et al.Rapid and cost-effective multiparameter toxicity tests for soil microorganisms[J].The Science of the Total Environment,2000,247:143-150.

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