Results 41 to 50 of about 266 (149)

Efeitos da dessecação com glyphosate e chlorimuron-ethyl na comunidade infestante e na produtividade da soja Effects of dissection with glyphosate and chlorimuron-ethyl on weed community and soybean yield

Planta Daninha, 2009
O efeito de dessecantes sobre o período anterior à interferência (PAI) pode auxiliar na tomada de decisão para o manejo das plantas daninhas. O objetivo desta pesquisa foi verificar se a adição de chlorimuron-ethyl ao glyphosate, para dessecação em pré ...
L.B Carvalho, L.C Scherer, F.R Lucio, P.L.C.A Alves   +3 more
doaj   +1 more source

Tetrahydroanthracene Derivative: Anti-microbial Isolate from Acanthospermum hispidum DC

International Journal of Advanced Chemistry, 2014
The leaves and stems of Acanthospermum hispidium were extracted with distilled ethanol using cold extraction and concentrated using a rotary evaporator at 37 0C. The crude extract was partitioned successively using hexane, benzene and methanol. Fractions 19, 20 and 21 purified on Sephadex LH-20 gave a compound elucidated to be 1, 3, 6, 8-tetrahydroxyl ...
Olajide Olutayo Olawumi, Oladosu Ibrahim, Fakunle Christianah   +2 more
openaire   +2 more sources

Manejo de plantas daninhas na cultura do algodoeiro com S-metolachlor e trifloxysulfuron-sodium em sistema de plantio convencional Weed Management with S-metolachlor and trifloxysulfuron-sodium in cotton field

Planta Daninha, 2006
Objetivou-se com este trabalho desenvolver tecnologia para manejo de plantas daninhas na cultura do algodoeiro, em sistema de plantio convencional, combinando os herbicidas S-metolachlor em pré-emergência com trifloxysulfuron-sodium em pós-emergência ...
R.S. Freitas, L.R. Ferreira, P.G. Berger, A.C. Silva, P.R. Cecon, M.P. Silva   +5 more
doaj   +1 more source

Dinâmica do banco de sementes de plantas daninhas sob diferentes sistemas de manejo de solo Weed seedbank dynamics under different soil management systems

Planta Daninha, 2001
Um experimento foi conduzido em campo no período de 1982 a 1998, em Londrina-PR, com o objetivo de avaliar o efeito de diferentes sistemas de manejo de solo nas reduções anuais de um banco de sementes de plantas daninhas e seus períodos de sobrevivência,
E. Voll, E. Torres, A.M. Brichenti, D.L.P. Gazziero   +3 more
doaj   +1 more source

Impact of land management on herbaceous vegetation diversity and forage provision in the Great Green Wall in Burkina Faso

Grassland Research, Volume 4, Issue 2, Page 105-120, June 2025.
According to the disturbance gradient, the species richness of herbaceous vegetation increased from fenced (less disturbed) to fallow (most disturbed). The pastoral value and biomass production of grazing land were higher in protected areas (fenced land) than in unprotected areas (community forests and fallow land), suggesting that conservation ...
Issouf Zerbo, Sambo Ouédraogo, Daouda Savadogo, Aliou Guissé, Issaka J. Boussim   +4 more
wiley   +1 more source

Effect of Intercropping and Mulching on Weed Composition in Agroclimatic Zones of Zimbabwe

International Journal of Agronomy, Volume 2025, Issue 1, 2025.
Weed species composition is significantly affected by crop management practices. Intensive cropping is often associated with a reduction in weed species diversity. This study was conducted to assess the effect of intercropping and mulching on weed flora in three agroecological regions in eastern Zimbabwe.
Juliet C. Murimwa, Stanford Mabasa, Joyful T. Rugare, Hardlife Chinwa, Kelvin Chipoyi, Regis Chikowo, Othmane Merah   +6 more
wiley   +1 more source

Regional variability in phytochemical profiles and bioactivities of macerate and decoction extracts from three medicinal plants of Burkina Faso

Frontiers in Plant Science
IntroductionRegional variability in secondary metabolite biosynthesis represents a critical dimension of plant chemodiversity. This study examined Acanthospermum hispidum, Vitex simplicifolia, and Vetiveria nigritana collected from three ecological zones
Abdel Magid Arsène Ouoba, Hemayoro Sama, Hemayoro Sama, Harouna Soré, Harouna Soré, Abdoul-Nassiré Derra, Samson Guenné, Adama Hilou   +7 more
doaj   +1 more source

Estimativa do período que antecede a interferência de plantas daninhas na cultura da soja, Var. Coodetec 202, por meio de testemunhas duplas Estimate of the period prior to weed interference in soybean (Glycine max), Variety Coodetec 202, through two-fold checks

Planta Daninha, 2007
O objetivo deste trabalho foi determinar o período anterior à interferência (PAI) em soja, var. Coodetec 202, em área de plantio direto na região de Maringá-PR, utilizando o sistema de testemunhas duplas.
J. Constantin, R.S. Oliveira Jr., S.D. Cavalieri, J.G.Z. Arantes, D.G. Alonso, A.C. Roso   +5 more
doaj   +1 more source

Environmental factors determining weed species distribution in organic manure and inorganic fertiliser smallholder maize (Zea mays L.) production

Weed Research, Volume 64, Issue 5, Page 365-375, October 2024.
Abstract Weeds are a major concern in crop production, and their environmental plasticity hinders successful control. A phytosociological study assessed weed distribution patterns in smallholder maize (Zea mays L.) production under different climatic and soil factors in the 2020/2021 and 2021/2022 cropping seasons.
Temnotfo L. Mncube, Ethel E. Phiri, Henry R. Mloza‐Banda, Joyful T. Rugare, Palesa N. Mothapo, Petrus Jacobus Pieterse   +5 more
wiley   +1 more source

Misturas de herbicidas com adubo molíbdico na cultura do feijão Mixtures of herbicides and molybdic fertilizer in beans

Planta Daninha, 2008
Foram conduzidos dois experimentos em Coimbra-MG no período de março a julho, em anos consecutivos, com o objetivo de avaliar possível interação proporcionada pela mistura de adubo molíbdico com herbicidas em relação à produtividade e ao controle de ...
G.A.A. Araújo, A.A. Silva, A. Thomas, P.R.R. Rocha   +3 more
doaj   +1 more source