Results 131 to 140 of about 1,168 (171)

Metribuzin degradation in soil: I—effects of soybean residue amendment, metribuzin level, and soil depth

Pesticide Science, 1991
AbstractPlant residue and soil depth effects on metribuzin degradation were investigated. Dundee silt loam soil collected at depth increments of 0–10 cm (SUR) and 10–35 cm (SUB) was treated with labeled [5−14 C]metribuzin. Samples were assayed at several time points up to 140 days after treatment.
Martin A. Locke, Sidney S. Harper
openaire   +3 more sources

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

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

Tomato chloroplast photochemical sensitivity to metribuzin

Scientia Horticulturae, 1982
Abstract Differential tolerance of tomato cultivars to metribuzin at the chloroplast site of action was evaluated through in vitro studies. Isolated chloroplast preparations from 18- or 30-day-old seedlings of metribuzin-tolerant cultivars ‘Fireball’ and ‘Vision’, and metribuzin-susceptible ‘H1706’, were treated with varying concentrations of ...
V.Souza Machado, C. Ditto
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

Retention and Runoff Losses of Atrazine and Metribuzin in Soil

Journal of Environmental Quality, 2003
ABSTRACTMinimizing herbicide runoff and mobility in the soil and thus potential contamination of water resources is a national concern. Metribuzin [4‐amino‐6‐(1,1‐dimethylethyl)‐3‐(methylthio)‐1,2,4‐triazin‐5(4H)‐one] and atrazine [2‐chloro‐4‐ethylamino‐6‐isopropylamino‐1,3,5‐triazine] dynamics in surface soils and in runoff waters were studied on six ...
openaire   +2 more sources

Fate of Metribuzin, Metolachlor, and Fluometuron in Soil

Weed Science, 1982
Adsorption of metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5(4H)-one], metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] and fluometuron [1,1-dimethyl-3-(α,α,α-trifluoro-m-tolyl)urea] on a Taloka silt loam (Mollic Albaqualf) and a Roxana silt loam (Typic Udifluvent) from the 10- to 20- and 40- to 50-cm
Dermont C. Bouchard, Terry L. Lavy, Dave B. Marx   +2 more
openaire   +1 more source

ATRAZINE AND METRIBUZIN SORPTION IN SOILS OF THE ARGENTINEAN HUMID PAMPAS

Environmental Toxicology and Chemistry, 2002
Abstract Laboratory studies were conducted to determine the influence of surface and subsurface properties of three representative soils of the humid pampas of Argentina on atrazine and metribuzin sorption. Atrazine and metribuzin sorption isotherms were constructed for each soil at four depths.
Peter E, Daniel, Francisco, Bedmar, José L, Costa, Virginia C, Aparicio   +3 more
openaire   +2 more sources

Kinetics of linuron and metribuzin degradation in soil

Pesticide Science, 1979
AbstractThe disappearance of linuron and metribuzin was studied during laboratory incubation of soil samples which had been taken from several depths at three sites, and treated with the pesticides. Temperature and water content of the soils were varied.
Gillian F. Kempson‐Jones, Raymond J. Hance   +1 more
openaire   +1 more source

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