Quantification of deposit and reduction soil herbicide drift u windy conditions

Bioremediation of Herbicide-Contaminated Soil and Water

The contamination of soils, groundwater and surface waters by herbicides poses major clean-up problems. At present, the most common approach is containment, involving costly removal of highly contaminated soils to landfill sites. Bioremediation methods for in situ treatment are needed as alternative and/or supplementary approaches for cost-effective and residue-free clean-up. This project focus...

Herbicide Reduction Methods

Banking Market Conditions and Deposit Interest Rates

This paper addresses the impact market conditions on bank deposit interest rates. Examining data for 1988-2000, we find that rates are affected by market size structure (defined as the distribution of market shares of banks of different sizes whether or not the market share is achieved entirely in that local market). This is in addition to the effects of market concentration noted in earlier wo...

Simulating herbicide volatilization from bare soil affected by atmospheric conditions and limited solubility in water.

A numerical model that simulates pesticide fate was developed to predictthe behavior of triallate after application to a field soil. The model has options that allow water and/ or heat transport and can limit simulated aqueous-phase concentrations to triallate solubility in water. Several methods for describing the volatilization boundary condition were tested to assess the accuracy in predicti...

Fluid Extraction of Fluometuron Herbicide from Soil

Soil was treated with "C-ring-labeled fluometuron [N,N-dimethyl-N'[3-(trifluoromethyl)phenyll urea] (0.516 and 5.16 pmol gl), air-dried, and stored for 6 months at 5 "C. The 14C was then extracted from soil with methanol by conventional extraction (twice with MeOH/H20 8020 v/v; 2:l extract/soil v/w) and with CO2 using a supercritical fluid extractor. Supercritical fluid extraction (SFE) method ...