Results 41 to 50 of about 1,157 (148)

Hazard quotient, microbial diversity, and plant composition of spent crude oil-polluted soil

Beni-Suef University Journal of Basic and Applied Sciences, 2020
Background The present work assesses the concentration of some heavy metal, plant species composition, and microbial diversity of spent crude oil-polluted soil from electric generator plant house, auto mechanic workshop, bakery, and auto spare part shops
Beckley Ikhajiagbe, Matthew Chidozie Ogwu   +1 more
doaj   +1 more source

Identification par chromatographie en phase gazeuse couplée à la spectroscopie de masse (GC-MS) de molécules bioactives de deux plantes présumées antihypertensives de la pharmacopée nigérienne: Ximenia americana L et Acanthospermum hispidum: Identification by gas chromatography-mass spectroccopy of bioactives compounds of two plants presume antihypertensive of Nigerien pharmacopoeia: Ximenia americana L. et Acanthospermum hispidum DC.

, 2022
Au Niger, la pharmacopée traditionnelle retrouve un regain d’intérêt auprès des communautés et des chercheurs. Ainsi plusieurs études conduites ont permis de dresser un répertoire de plantes médicinales. Parmi celles-ci, on retrouve des plantes utilisées
Zakari Seybou, Djamilatou, Alfa Keita, Djibo, Pirat, Jean Luc, Sabo, Haoua Seini, Virieux, David   +4 more
core   +1 more source

Revisión de la lista de malezas cuarentenarias de Ecuador

La Técnica: Revista de las Agrociencias, 2015
Se describe el concepto de plaga cuarentenaria, análisis de riesgo de plagas y otros aspectos para evitar el ingreso de plantas exóticas en Ecuador.
Ricardo Labrada
doaj   +1 more source

Bioactivity of the Essential Oil of an Argentine Collection of (Asteraceae)

Natural Product Communications, 2012
The essential oil of an Argentine collection of the annual herb Acanthospermum hispidum DC. (Asteraceae), which contains the sesquiterpenoids β-caryophyllene (35.2%), α-bisabolol (11.4%), and germacrene D (11.1%) as major constituents, displayed ...
Mariana Alva, Susana Popich, Susana Borkosky, Elena Cartagena, Alicia Bardón   +4 more
doaj   +1 more source

Strip Crops and Intercrops Outperform Crop Rotations for Weed Management Under Conservation Agriculture in Zimbabwe

Weed Research, Volume 66, Issue 1, January/February 2026.
ABSTRACT High weed infestation remains a major constraint on crop productivity for smallholder farmers practising Conservation Agriculture (CA). Fewer, more diverse weeds are desirable to reduce competition and provide ecosystem services. Crop diversification can help, but it is not yet clear which species combinations and layouts are most effective ...
Betty Rutendo Masamba, Chloe MacLaren, Stanford Mabasa, Regis Chikowo, Christian Thierfelder   +4 more
wiley   +1 more source

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

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

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

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