Download or read book Fate of Atrazine in a Treated Forest Soil written by John Leslie Wright and published by . This book was released on 1998 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Results From A Nation wide Study On The Fate Of Atrazine Residues In Surface Water And Soils Resulting From Routine Application By Australian Forest Growers written by K. A. Bubb and published by . This book was released on 2000 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biodegradation of Atrazine in Subsurface Environments written by Jim Sinclair and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fate of Atrazine and Metolachlor in a Phytoremediation System written by Keri Lynn Deppe Henderson and published by . This book was released on 2004 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atrazine and metolachlor have been implicated in point-source pollution at agrochemical dealerships in the Midwest, as well as in nonpoint-source contamination of surface waters caused by runoff. Prairie grasses have been used in filter strips and are also useful for phytoremediation; however, little is known about the fate of contaminants and their metabolites within a grassed system. Effects of plant uptake on formation and fate of degradation products are not known. In this thesis, atrazine and metolachlor were evaluated individually. Each 14C-labeled herbicide was added to enclosed systems to determine the fate of the parent compound and its metabolites in soil, plant, and air. Soil was treated with 25 mg/kg 14C-labeled herbicide and allowed to age for a short period to simulate conditions that could be found at an agrochemical dealership site. Four systems were then amended with a mixture of prairie grasses, and the remaining four chambers were unvegetated controls. Dissipation of each herbicide and distribution of parent compound and metabolites were recorded for 21 days for 14C-atrazine and 90 days for 14C-metolachlor. 14C-CO2 and volatile 14C-organic metabolites were collected throughout the study. After the testing period, soil and plant materials were evaluated for radioactivity, and identity of metabolites was determined. Mass balance of atrazine for both vegetated and control systems was>76%, with 40% of the applied radioactivity remaining bound to soil particles after a sequential extraction technique. Parent atrazine was the dominant compound detected, with major metabolites in soil being deethylatrazine and didealkylatrazine. Less than 0.5% of applied 14C-residue was taken up by the grasses. Approximately 2% of total applied 14C-atrazine was mineralized to 14C-CO2, with no differences between vegetated and unvegetated systems. Mass balance for metolachlor was>92% for both vegetated and control systems. Vegetation decreased the amount of metolachlor in soil, with significantly higher concentrations of the metabolites metolachlor ethane sulfonic acid and the morpholinone metabolite present in vegetated soil compared to unvegetated soil. Over 7% of applied radioactivity was taken up into plant tissue during the 97-day study, thus indicating that plant uptake plays a major role in the phytoremediation of metolachlor.

Download or read book Fate of Atrazine in Argentinean Soils written by Susana Hang and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book are shown the results of the atrazine behavior in Argentinean, conducted between 2001 and 2006. In the first work it was studied the behavior of atrazine in surface soils, and evaluated the effect of land use and how it affects the ability of soil to remove residual atrazine. In the second study it was evaluated two soil profiles characteristic of the province of Cordoba, and in each horizon, the effect of soil properties on the retention and degradation of atrazine mineralization was evaluated. The third study aimed to recognize the distribution along the profile of the soil's ability to mineralize atrazine. The soil sterilization was carried out to quantify chemical and biological degradation of atrazine. In the fourth and fifth paper it was analyzed different strategies of winter weed control and how weed management influenced on the atrazine persistence. In the sixth and final paper it is presented an original proposal to identify soils with rapid mineralization capacity of atrazine, based in corn crop history where atrazine is used. As a tool to reconstruct the history of the lot was used satellite images.

Download or read book Monitoring the Fate of Atrazine and Nitrate in a Subsurface Drained Sharkey Soil written by Daniel Johnson and published by . This book was released on 1993 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence and Application Rate on Atrazine Fate in Coarse and Fine textured Wisconsin Soils written by Jeffery Earl Hanson and published by . This book was released on 1997 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Affecting Atrazine Fate in North Central U S Soils written by S. A. Clay and published by . This book was released on 1997 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Survival of Douglas fir Seedlings Sprayed with Atrazine Terbacil and 2 4 D written by H. Gratkowski and published by . This book was released on 1979 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Competing Vegetation Management Western Oregon written by and published by . This book was released on 1989 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fate of Atrazine and Metolachlor in Till and No till Soils written by Hamid Rafiee and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biodegradability of Atrazine Cyanazine and Dicamba in Wetland Soils written by and published by . This book was released on 1992 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atrazine Promotes Ponderosa Pine Regeneration written by Glenn LeRoy Crouch and published by . This book was released on 1977 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fate of Major Degradation Products of Atrazine in Iowa Soils written by Hafeez Ullah Baluch and published by . This book was released on 1992 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fate of Atrazine and Paraquat in Three West Virginia Soils written by Lidio Angel Parra and published by . This book was released on 1971 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Microorganisms on the Fate of Soil aged Atrazine written by Stephanie Ellen Johnson and published by . This book was released on 2003 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report RM written by and published by . This book was released on 1995 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: