Results 181 to 190 of about 8,153 (220)

Alginate controlled release formulations of metribuzin

Journal of Controlled Release, 1991
Abstract The release rates of metribuzin from various alginate-clay formulations were investigated. The standard formulation consisted of 1% alginate-1% metribuzin ≅ 10% clay and 88% water. The type of alginate was found to have little effect on release rate but did affect the physical properties of both the slurry and the dried beads.
Armand B. Pepperman, null Jui-Chang W. Kuan, Charles McCombs   +2 more
exaly   +2 more sources

Retention of Metribuzin by Sugarcane Residue

Soil Science, 2011
Assessment of herbicide retention in the soil environment is essential for minimizing their potential contamination of surface and groundwater resources. In this study, metribuzin retention characteristics by sugarcane mulch residue were quantified. Batch methods were used to quantify adsorption and desorption of metribuzin by the residue over a wide ...
H. Magdi Selim, Brian J. Naquin
openaire   +1 more source

Modeling hydrology, metribuzin degradation and metribuzin transport in macroporous tilled and no‐till silt loam soil using RZWQM

Pest Management Science, 2004
AbstractDue to the complex nature of pesticide transport, process‐based models can be difficult to use. For example, pesticide transport can be effected by macropore flow, and can be further complicated by sorption, desorption and degradation occurring at different rates in different soil compartments.
Robert W, Malone, Liwang, Ma, R Don, Wauchope, Lajpat R, Ahuja, Kenneth W, Rojas, Qingli, Ma, Richard, Warner, Matt, Byers   +7 more
openaire   +2 more sources

Subsurface Placement Methods for Metribuzin and Trifluralin

Weed Science, 1983
Metribuzin [4-ammo-6-tert-butyl-3-(methylthio)-as-triazin-5(4H)-one] at 0.4 kg ai/ha controlled rape (Brassica hitraMoench. # SINAL) when applied 2.5 to 10 cm deep in a horizontal layer or in lines 1 to 4 cm apart. Trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) at 0.8 kg ai/ha did not control ‘Rox Orange’ forage sorghum [Sorghum ...
Mustafa A. Khalifa, Howard D. Wittmuss, Orvin D. Burnside   +2 more
openaire   +1 more source

Spectrometric Characterization of Metribuzin and its Metabolites

Applied Spectroscopy, 1984
Metribuzin and its three major plant metabolites have been characterized by ultraviolet, infrared, and proton NMR spectroscopy and mass spectrometry. The reported structures for these compounds have been confirmed, except that deaminated Metribuzin (DA) exists mainly in the enol form rather than the keto form usually reported.
P. W. Albro, C. E. Parker, G. D. Marbury, O. Hernandez, F. T. Corbin   +4 more
openaire   +1 more source

Nonbiological degradation of the herbicide metribuzin in manitoba soils

Bulletin of Environmental Contamination and Toxicology, 1978
Degradative loss of herbicides in soil can take place by chemical or biological means. HYZAK and ZIMDAHL (1972) bave suggested that non-biological degradation of metribuzin in soil may be the most important mode of breakdown following application to San Luis sandy loam.
G R, Webster, L P, Sarna, S R, Macdonald
openaire   +2 more sources

Metribuzin removal with electro-activated granular carbon

Chemical Engineering and Processing: Process Intensification, 2012
Abstract The main purpose of this work was to extend the application of a novel separation technique to the removal of pesticides from superficial waters. The technique is based on the process of adsorption on granular activated carbons (GAC) that are initially activated by an electrical potential.
Ouiza Kitous, Hanane Hamadou, Hakim Lounici, Nadjib Drouiche, Nabil Mameri   +4 more
openaire   +1 more source

Response of Three Potato Cultivars to Metribuzin

Journal of Production Agriculture, 1996
Metribuzin is the herbicide of choice by potato (Solanum tuberosum L.) growers and they need information on the response of newly released cultivars to this herbicide. This study was conducted to determine the response of three new potato cultivars ‘AC Novachip’, ‘Belmont’, and ‘Russet Norkotah’ to metribuzin.
Walter J. Arsenault, Jerry A. Ivany
openaire   +1 more source

Differential Tolerance of Tomato Cultivars to Metribuzin

Weed Science, 1976
Seedlings of fifteen different cultivars of tomato (Lycopersicon esculentumMill.) varied greatly in tolerance to metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazine-5(4H) one] applied at a concentration of 0.5 mg/L in quartz sand nutrient culture during the three-true-leaf stage.
G. R. Stephenson, J. E. McLeod, S. C. Phatak   +2 more
openaire   +1 more source

Metribuzin residues in lentil following postemergence application

Canadian Journal of Plant Science, 1998
In a study involving two sites in western Canada, residues of the herbicide metribuzin in lentil were monitored by gas chromatography following postemergence application at 0.28 kg a.i. ha−1. On the day of spraying, initial residues in lentil green foliage were of the order of 1 mg kg−1.
openaire   +1 more source