Results 21 to 30 of about 300 (151)
Pre‐plant and in‐crop herbicide programs for prickly sida control in soybean
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
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
<!-- @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
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
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
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
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
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
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
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

