Results 131 to 140 of about 1,161 (169)

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

The metribuzin herbicide in polycaprolactone nanocapsules shows less plant chromosome aberration than non-encapsulated metribuzin

Environmental Chemistry Letters, 2019
The excessive use of the metribuzin herbicide is contaminating groundwater and damaging non-target plants and organisms. There is therefore a need for safer formulations of the herbicide. Here we encapsulated metribuzin by interfacial deposition of the pre-formed polymer.
Marjan Diyanat, Hamid Saeidian, Saeidian Hamid   +2 more
exaly   +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

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

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

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

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

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

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