Organo-Clay Formulations of the Hydrophobic Herbicide Norflurazon Yield Reduced Leaching
نویسندگان
چکیده
منابع مشابه
Organo-clay formulations of pesticides: reduced leaching and photodegradation
Adsorption of organic cations on several clay minerals is reviewed with an emphasis on the effect of ionic strength and modeling. The clay exchanged with suitable organic cations forms a basis for ecologically acceptable formulations of herbicides with reduced leaching, ground water contamination and enhanced weed control efficacy. Incomplete neutralization of the clay surface charge by an orga...
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Aiming to reduce herbicide leaching, "in situ" adsorption of herbicide-micelle formulations to soils was explored. Sulfentrazone or metolachlor were solubilized in cationic micelles, and these herbicide-micelle formulations were applied to sandy and alluvial soils. Sulfentrazone adsorption to the soils was negligible; however, its adsorption via its solubilization in micelles and their adsorpti...
متن کاملNovel system for reducing leaching of the herbicide metribuzin using clay-gel-based formulations.
Metribuzin is an herbicide widely used for weed control that has been identified as a groundwater pollutant. It contaminates the environment even when it is used according to the manufacturer's instructions. To reduce herbicide leaching and increase weed control, new controlled release formulations were developed by entrapping metribuzin within a sepiolite-gel-based matrix using two clay/herbic...
متن کاملDistribution of a nonylphenol isomer and the herbicide MCPA in soil derived organo-clay complexes
Organo-clay complexes in soil play an important role in the immobilization and persistence of xenobiotics. In this study, the fate of 14 C-labeled 4-(3,5-dimethylhept-3-yl)phenol (NP) and 4-chloro-2mehtylphenoxyacetic acid (MCPA) in soil was examined using incubation periods from 1d to 180d (NP) and 1d to 120d (MCPA). Special emphasis was on the distributions of the compounds and its degradatio...
متن کاملSpatial variation in herbicide leaching from a marine clay soil via subsurface drains
BACKGROUND Subsurface transport via tile drains can significantly contribute to pesticide contamination of surface waters. The spatial variation in subsurface leaching of normally applied herbicides was examined together with phosphorus losses in 24 experimental plots with water sampled flow-proportionally. The study site was a flat, tile-drained area with 60% marine clay in the topsoil in sout...
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ژورنال
عنوان ژورنال: Journal of Agricultural and Food Chemistry
سال: 2000
ISSN: 0021-8561,1520-5118
DOI: 10.1021/jf9907945