Adsorption Characteristics of Topramezone in Soil

doi:10.11924/j.issn.1000-6850.2014-0525

Abstract

Abstract: Topramezone was a new broad-spectrum herbicide used in corn field. The study was to evaluate the environmental behavior of topramezone in soil. The adsorption of topramezone in 5 soils was studied in the laboratory by using vibrating equilibrium method. The results indicated that adsorption of substance in 5 soil samples and adsorption of humic acid tested were well fitted with Freundlich model, with the adsorption coefficients respectively as Nong’an calcium soil 9.44, Yongji white pulp soil 8.98, Lishu black soil 16.02, Qianguo sodic soil 7.83, Liuhe gray brown soil 29.37. Topramezone showed medium absorption in the gray brown soil, but more difficult adsorption in the remaining 4 soils. Adsorption with changes of free energy was less than 40 kJ/mol, which was a type of physical adsorption. The sorption constants of soil to topramezone were positively related to both the contents of soil organic matter and the contents of soil CEC, however negatively related to the contents of soil pH. Adsorption coefficient of humic acid was 177.40, demonstrating that humic acids had a strong adsorption with topramezone. After Adding humic acids in black soil and sodic soil, the adsorption coefficient changed to 17.98 and 9.80, proving that the humic acid has a certain influence on adsorption of topramezone in the soil.

References

[1] 冯慧敏,何红波,俞洁,等.乙草胺的生态环境风险及其主要土壤行为综述[J].土壤通报,2009,40(1):203-208.
[2] 聂果,吴春先,高立明,等.莠去津的生态毒理学及其环境行为学研究进展[J].现代农药,2007,6(4):32-37.
[3] 方圆.莠去津残留期长,后茬敏感作物易受害[J].杂草科学,2011,29 (2):75.
[4] Klaus Grossmann, Thomas Ehrhard. On the mechanism of action and selectivity of the corn herbicide topramezone: a new inhibitor of 4- hydroxypHenylpyruvate dioxygenase[J].Pest Management Science,2007(63):429-439.
[5] Thomas K. Gitsopoulos, Vasilios Melidis, Georgios Evgenidis. Response of maize (Zea mays L.) to post-emergence applications of topramezone[J].Crop Protection,2010(29):1091-1093.
[6] 邓红霞,钱跃言,陈亚萍.新型除草剂苯唑草酮研究进展[J].浙江化工,2012,43(11):1091-1093.
[7] 张为农.苞卫三优势杀进玉米田除草剂市场[J].农药市场信息, 2011(4):25.
[8] 陈吉慧,郑丽君,林文忠,等.新除草剂苞卫防除玉米田杂草试验[J].农药,2010(10):50.
[9] 水清.玉米田抗性狗尾草可用苯唑草酮[J].农药市场信息,2012 (21):37.
[10] 水清.玉米田新型除草剂苯唑草酮[J].农药市场信息,20119(13):36.
[11] 刘刚.新型玉米田苗后茎叶处理除草剂苯唑草酮[J].北京农业, 2011(6):40-41.
[12] 周小刚,朱建义,陈庆华,等.33.6%苯唑草酮 SC防除玉米田杂草田间药效试验[J].湖北植保,2010(6):21-23.
[13] 李涛,沈国辉,钱振官,等.336 g/L苯唑草酮 SC防除玉米田杂草技术研究[J].杂草科学,2012,30(4):48-51.
[14] 马红明,李东萍,李利,等.30%苯唑草酮防除甜玉米棵间杂草田间药效试验[J].中国园艺文摘,2012(6):40-41.
[15] 刘忠山,刘煜财,王广祥,等.苯吡唑草酮对后茬作物水稻安全性试验研究[J].吉林农业,2011(11):63.
[16] 刘君良,刘伟堂,李小芳,等.苯唑草酮等 3种除草剂对不同玉米品种的安全性[J].农药,2011,50(6):426-427.
[17] YUAN Bo- Li, Feng shou Dong, Xin gang, et al. Miniaturized liquid- liquid extraction coupled with ultra- performance liquid chromatograpHy/tandem mass spectrometry for determination of topramezone in soil, corn, wheat, and water[J].Anal Bioanal Chem, 2011(400):3097-3107.
[18] 罗玲,欧晓明,廖晓兰.农药在土壤中的吸附机理及其影响因子研究概况[J].化工技术与开发,2004,33(1):12-16.
[19] 石利利,单正军,蔡道基.三唑磷在土壤中的降解与吸附特性[J].农业环境科学学报,2006,25(3):733-736.
[20] 刘松长,李继睿,何文.农药在土壤环境中的吸附-解吸作用[J].广东化工,2007,34(175):101-103.
[21] 何健,由宗政,廖云燕,等.丁虫腈在土壤中的吸附及移动特性[J].农药,2012,51(10):720-723.
[22] 丁炜.[A 环-U-14C]-丙酯草醚在土壤中的吸附和解吸特性[J].农药,2008,47(3):1289-1293.
[23] Dora Gondar, Rocío López, Juan Antelo, et al. Effect of organic matter and pH on the adsorption of metalaxyl and penconazole by soils[J].Journal of Hazardous Materials,2013(260):627-633.
[24] 欧晓明,余淑英,罗玲,等.新农药硫肟醚在土壤上的吸附[J].农业环境科学学报,2007,26(2):577-582.
[25] Von Oepen B, Kordel W, Klein W. Sorption of Nonpolar and Polar Compounds to Soils: Processes, Measurements and Experience with the Applicability of the Modified OECD- Guideline 106[J]. Chemosphere,1991,22(3/4):285-304.