کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4412867 | 1307655 | 2009 | 9 صفحه PDF | دانلود رایگان |

The aim of this paper was to study in laboratory the degradation and the effects on biological properties in two soils after the addition of glyphosate, diflufenican and glyphosate+diflufenican. One hundred grams of sieved soil (<2 mm) were mixed with (i) 13 mL of Zarpa® (16% glyphosate and 4% diflufenican) prepared in a water solution of 1 L (0.52 g of glyphosate and 2.08 g of diflufenican), (ii) 5.2 mL of Round up® (40% glyphosate), prepared in a water solution of 1 L (0.52 g of glyphosate), and (iii) 1.19 mL of Brodal® (43.5% diflufenican), prepared in a water solution of 1 L (2.08 g of diflufenican). Soil samples were collected after 0, 1, 5, 10, 15, 30, 60, 120 and 180 d of incubation and analyzed for microbial biomass-C and dehydrogenase, urease, β-glucosidase, phosphatase, arylsulphatase activities and glyphosate and diflufenican contents. At the end of the experiment, in the clayey texture soil the glyphosate and diflufenican contents were higher 50% and 30.7%, respectively, for the glyphosate+diflufenican treatment compared to glyphosate and diflufenican treatments, respectively. In the sandy loam texture soil the glyphosate and diflufenican contents were higher (38.9% and 39.4%, respectively) when the glyphosate and diflufenican were added as Zarpa® than Round up® or Brodal®. The application of glyphosate+diflufenican mixture to soil increased the toxic effects of both herbicides in the soil biological activity and the individual soil persistence of each herbicide.
Journal: Chemosphere - Volume 76, Issue 3, July 2009, Pages 365–373