Results 21 to 30 of about 300 (151)

Pre‐plant and in‐crop herbicide programs for prickly sida control in soybean

open access: yesCrop, Forage &Turfgrass Management, Volume 7, Issue 1, 2021., 2021
Abstract Prickly sida (Sida spinosa L.) is emerging as a prevalent and troublesome weed in the Mid‐South glyphosate‐resistant (GR) soybean [Glycine max (L.) Merr.] cropping systems as reliance on residual herbicides has decreased. It emerges throughout the growing season and postemergence (POST) control has been reported to be variable. Combinations of
Josh T. Copes   +3 more
wiley   +1 more source

Avaliação de herbicidas aplicados em pré e pós-emergência na cultura da cebola (Allium cepa L.) Herbicides applied in pre and pos-emergence on transplanted onion crop (Allium cepa L.)

open access: yesPlanta Daninha, 1985
Foram conduzidos em áreas de agricultores do Projeto de Irrigação de Bebedouro, no município de Petrolina, PE, dois experimentos de campo, onde estudouse o comportamento de diferentes herbicidas, no controle de plantas daninhas e na tolerância da cultura
J.C. Ferreira
doaj   +1 more source

BICOS DE PULVERIZAÇÃO NA APLICAÇÃO DE HERBICIDAS PÓS-EMERGENTES NA CULTURA DA SOJA SPRAYING NOZZLES FOR POST-EMERGENT HERBICIDE APPLICATION IN SOYBEAN

open access: yesPesquisa Agropecuária Tropical, 2007
<!-- @page { margin: 2cm } --> <p class="western" align="justify">O experimento foi conduzido durante o ano agrícola de 1994/1995, no município de Goiânia, GO (altitude de 730 m, latitude de 16o41'S e longitude de 49o17'W), com o objetivo de ...
Paulo Garcez Ferreira Leão   +3 more
doaj   +1 more source

Dose econômica ótima de acifluorfen + bentazon para controle de picão-preto e guanxuma em soja Optimum economic rate of acifluorfen + bentazon to control beggarticks and arrowleaf sida in soybean

open access: yesPlanta Daninha, 2004
As doses dos herbicidas são estabelecidas para uso em uma ampla variação de condições ambientais e de manejo das culturas. Contudo, algumas vezes, as doses de herbicidas podem ser reduzidas e, ainda assim, a interferência das plantas daninhas com a ...
M.A. Rizzardi, N.G. Fleck
doaj   +1 more source

Liquid Chromatographic Determination of Acifluorfen in Soil and Water

open access: yesJournal of AOAC INTERNATIONAL, 1990
Abstract An analytical method based on the use of a liquid chromatograph equipped with a UV detector was developed for the determination of acifluorfen In soil and water. Acifluorfen was extracted from soil In methanol-0.10N NaOH (80 + 20 v/ v) and from water by partition with dlchloromethane.
M, Gennari, M, Negre, A, Cignetti
openaire   +2 more sources

Castor (Ricinus communis L.) Tolerance to Postemergence Herbicides and Weed Control Efficacy

open access: yesInternational Journal of Agronomy, 2012
Potential US castor production is limited due to only one labeled herbicide (trifluralin). Field studies were conducted at two Texas locations during 2008 and 2009 to evaluate postemergence herbicides for castor tolerance and weed control efficacy ...
W. James Grichar   +2 more
doaj   +1 more source

The 2018 European Union report on pesticide residues in food

open access: yesEFSA Journal, Volume 18, Issue 4, April 2020., 2020
Abstract Under EU legislation (Article 32, Regulation (EC) No 396/2005), EFSA provides an annual report which analyses pesticide residue levels in foods on the European market. The analysis is based on data from the official national control activities carried out by EU Member States, Iceland and Norway and includes a subset of data from the EU ...
European Food Safety Authority (EFSA)   +2 more
wiley   +1 more source

Management Options and Factors Affecting Control of a Common Waterhemp (Amaranthus rudis) Biotype Resistant to Protoporphyrinogen Oxidase-Inhibiting Herbicides

open access: yesInternational Journal of Agronomy, 2012
Repeated use of protox-inhibiting herbicides has resulted in a common waterhemp (Amaranthus rudis Sauer) biotype that survived lactofen applied up to 10 times the labeled rate.
Dana B. Harder   +2 more
doaj   +1 more source

A Non-Metabolic Model of Acifluorfen Activity

open access: yesZeitschrift für Naturforschung C, 1987
The para-nitro substituted diphenyl ether herbicides which cause rapid plant pigment photo- bleaching can be divided into two categories: 1. those that have a photosynthetic requirement for activity (e.g. oxyfluorfen) and 2. those that have no apparent metabolic requirement for activity (e.g. acifluorfen).
Stephen O. Duke, William H. Kenyon
openaire   +1 more source

Critérios para avaliação do potencial de lixiviação dos herbicidas comercializados no Estado do Paraná Criteria for evaluation of the leaching potential of herbicides used in Paraná

open access: yesPlanta Daninha, 2003
Foi realizado um levantamento referente à comercialização de herbicidas no Estado do Paraná, visando quantificar o volume de sua utilização durante o ano de 2000.
M.H. Inoue   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy