Results 181 to 190 of about 2,612 (218)

Ametryn degradation in the ultraviolet (UV) irradiation/hydrogen peroxide (H2O2) treatment

Journal of Hazardous Materials, 2009
Ultraviolet (UV) irradiation (253.7nm) in the presence of hydrogen peroxide (H(2)O(2)) was used to decompose aqueous ametryn. The concentrations of ametryn were measured with time under various experiment conditions. The investigated factors included H(2)O(2) dosages, initial pH, initial ametryn concentrations, and a variety of inorganic anions ...
Yang Deng
exaly   +3 more sources

Effect of 2,4-D on Ametryne Toxicity

Weed Science, 1974
Nontoxic concentrations of 2,4-D [(2,4-dichlorophenoxy)acetic acid] increased the toxicity of ametryne [2-(ethylamino)-4-(isopropylamino)-6-(methylthio)-s-triazine], when applied to the roots of waterhyacinth [Eichornia crassipes(Mart.) Solms], when applied to the roots or foliage of corn (Zea maysL.), and to a lesser extent, when applied to the roots ...
J. R. Diem, D. E. Davis
openaire   +1 more source

Analysis and toxicity of methomyl and ametryn after biodegradation

Analytical and Bioanalytical Chemistry, 2002
The controlled biodegradation of ametryn and methomyl has been performed, in accordance with the OECD Zahn-Wellens/EMPA procedure, by use of an enriched mixture of activated sludge collected from three domestic waste-water-treatment plants (WWTP). During the process concentrations of ametryn and methomyl in the water samples were isolated by solid ...
M, Farré, J, Fernandez, M, Paez, L, Granada, L, Barba, H M, Gutierrez, C, Pulgarin, D, Barceló   +7 more
openaire   +2 more sources

DIFFERENTIAL PHYTOTOXICITY OF ATRAZINE AND AMETRYNE TO BANANAS*

Weed Research, 1969
Summary. In field screening trials for bananas (Musa acuminata var. Dwarf Cavendish) in Hawaii, ametryne (2‐methylthio‐4‐ethylamino‐6‐isopropylamino‐s‐triazine) was less phytotoxic to bananas than atrazine (2‐chloro‐4‐ethylamino‐6‐isopropylamino‐s‐triazine).
R. C. BARBA, R. R. ROMANOWSKI
openaire   +1 more source

Growth Regulator-Like Activity of Atrazine and Ametryne

Weed Science, 1972
Atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] and 2-(ethylamino)-4-(isopropylamino)-6-(methylthio)-s-triazine (ametryne) were tested for growth regulatorlike effects. In the presence of 10 μg/ml of kinetin, atrazine had no effect on the growth of callus tissue of soybean (Glycine max Merr. ‘Lee’), but ametryne at 10−14M concentration
Leonard G. Copping, D. E. Davis, C. G. P. Pillai   +2 more
openaire   +1 more source

Chemical behaviors and toxic effects of ametryn during the UV/chlorine process

Chemosphere, 2020
Ametryn (AMT), one of the most widely used herbicides in agriculture, has been frequently detected as a micropollutant in many aquatic environments. AMT residue not only pollutes water but also acts as a precursor for the production of disinfection by-products (DBPs). This study systematically investigated the fate of AMT during the UV/chlorine process.
Weiwei Yang, Yankui Tang, Lu Liu, Xiaoyu Peng, Yaxuan Zhong, Yunong Chen, Yinfeng Huang   +6 more
openaire   +2 more sources

Management of complex weeds in sugarcane by ametryn + trifloxysulfuron

Indian Journal of Weed Science, 2016
Field experiment was conducted to evaluate the bio-efficacy of ametryn 73.15% + trifloxysulfuron 1.85% W.G for the management of grasses, sedge and broad-leaf weeds in sugarcane. The experiment consisted of nine treatments laid out in randomized block design with three replications. Cyperus rotundus, Ipomoea spp, Brachiaria reptans, Echinochloa colona,
Rohitashav Singh, null Neelam, D.K. Singh, A.P. Singh, Sumit Chaturvedi, Ram Pal, Mahavir Singh   +6 more
openaire   +1 more source

Decontamination of Ametryne HDPE packaging using electron beam accelerator

Radiation Physics and Chemistry, 2009
Abstract This paper is part of a project to evaluate pesticide degradation on commercial polymeric (high-density polyethylene, HDPE) packaging material. The herbicide studied was Ametryne whose residues may be detectable in water, soil and on the surfaces for months or years, depending on the pesticide formulation and type of application. In order to
C.L. Duarte, D.C. Andrade, R.P. Melo, H.R. Nagatomi, M.N. Mori   +4 more
openaire   +1 more source

Leaching and persistence of ametryn and atrazine in red–yellow latosol

Journal of Environmental Science and Health, Part B, 2015
This study evaluated the mobility and persistence of atrazine and ametryn in red-yellow latosols using polyvinyl chloride columns with a diameter of 100 mm and a height of 15 cm. The assays simulated 60-mm rainfall events at 10-day intervals for 70 days. The persistence and leaching were evaluated for these two herbicides.
Rodrigo T, de Paula, Adley Bergson G, de Abreu, Maria Eliana L R, de Queiroz, Antônio A, Neves, Antônio A, da Silva   +4 more
openaire   +2 more sources

DCPIP and Respirometry Used in the Understanding of Ametryn Biodegradation

Journal of Environment and Ecology, 2018
In view of an environmental scenario of degradation of the terrestrial ecosystem due to the indiscriminate use of organic compounds, it is necessary to use complementary techniques to evaluate the remediation processes of contaminated soils. Thus, the objective of this work was to evaluate the biodegradation of ametryn herbicide, which is applied in ...
Ana Paula Justiniano Régo, Kassio Ferreira Mendes, Ederio Dino Bidoia, Valdemar Luiz Tornisielo   +3 more
openaire   +1 more source