EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Bentazone leaching in Spanish soils


Pesticide Science 47(1): 7-15
Bentazone leaching in Spanish soils
Adsorption, incubation and soil-column experiments with bentazone (3-isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide) were carried out in ten different soils from the marches surrounding the Donana National Park (Huelva, SW Spain). Adsorption isotherms for the different soils showed a good fit with the Freundlich equation. Bentazone was poorly adsorbed in all the soils studied, with no significant relationship between the K-f values and soil characteristics. A significant correlation was obtained between the soil organic matter content and the distribution constant values (K-d) calculated at an equilibrium concentration of 200 mu-g cm-3. The low adsorption and non-degradation of bentazone on these soils suggest that the herbicide readily percolates through soils to reach the surface and ground waters. The mobility of bentazone through three soil columns was also studied. The mass balances carried out showed that bentazone was totally eluted from the soil columns. The theoretical model applied to explain bentazone leaching under our experimental conditions seems to be suitable for soil columns with a uniform water-flow rate.

Accession: 002763885

DOI: 10.1002/(sici)1096-9063(199605)47:1<7::aid-ps377>3.0.co;2-z

Download PDF Full Text: Bentazone leaching in Spanish soils



Related references

Influence of surfactants on the leaching of bentazone in a sandy loam soil. Pest Management Science 65(8): 857-861, 2009

Leaching of plant nutrients from cultivated soils. I. Leaching of cations. II. Leaching of anions. Journal of the Scientific Agricultural Society of Finland 50(3): 263-269; 270-275, 1978

Studies on salt movement in soils under leaching process using tracetechniques. II. The use of 22Na in the study of salt redistribution and leaching requirements of saline sandy soils. Isotope and Radiation Research 10(1): 25-35, 1978

Effect of bentazone and bentazone + dichlorprop on irrigated rice and on weeds. Planta Daninha 2(1): 18-21, 1979

Control of weeds in cereals with bentazone and bentazone mixtures. 1 deg Simposio Nacional de Herbologia, Oeiras 1971 Vol 2: 171-183, 1971

Fate of bentazone in four Louisiana soils. Dissertation Abstracts International, B 37(5): 2000, 1976

Bentazone adsorption and desorption on agricultural soils. Agronomy for Sustainable Development 25(2): 309-315, 2005

Effect of mixing the herbicides bentazone, bentazone + dicamba and 2,4-D amine with propanil to control the principal weeds of irrigated rice (Oryza sativa L.). Abstracts of the XIV Brazilian congress on herbicides and herbaceous weeds SBHED and the VI congress of the Latin American Weed Association ALAM, Campinas, 1982: 114-115, .

Simulation of dichloroprop leaching in three texturally distinct soils using the Pesticide Leaching Model. Journal of Environmental Science and Health, Part A: Environmental Science and Engineering 29(6): 1211-1230, 1994

Simulation of dichlorprop leaching in three texturally distinct soils using the pesticide leaching model. Journal of Environmental Science & Health Part A Environmental Science & Engineering 29(6): 1211-1230, 1994