Results 51 to 60 of about 1,158 (136)

Culturas antecessoras influenciando a cultura de milho e os atributos do solo no sistema de plantio direto - DOI: 10.4025/actasciagron.v27i2.1485

open access: yesActa Scientiarum. Agronomy, 2008
Com o objetivo de avaliar a produção de biomassa de plantas de cobertura, a cobertura morta remanescente, algumas características agronômicas do milho e atributos do solo, realizou-se o experimento no ano agrícola de 2002/2003, na UFMS (Universidade ...
Roone Maicon Gonçalves Martins   +1 more
doaj   +1 more source

Identifying priority areas for conservation to promote connectivity and mitigate the impacts of anthropogenic disturbance

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract As nations seek to expand protected area (PA) networks to cover 30% of land and seas by 2030 (30×30), there is an urgent need for systematic conservation planning and spatial prioritization that considers the broad range of ecological and socioeconomic factors influencing the persistence of biodiversity.
Edmond Sacre   +2 more
wiley   +1 more source

Persistência e liberação de nutrientes da palha de milho, braquiária e labe-labe

open access: yesBioscience Journal, 2012
A velocidade de liberação de nutrientes da palha e persistência do material vegetal depositado sobre o solo são fatores determinantes no sucesso do Sistema Semeadura Direta.
Juliano Carlos Calonego   +3 more
doaj  

Persistência biologica de ametryn, diuron e oxyfluorfen no solo Biological persistence of ametryn, diuron, and oxyfluorfen in soil

open access: yesCiência e Agrotecnologia, 2005
Realizou-se este trabalho com o objetivo de avaliar a persistência biológica de herbicidas de pré-emergência em condições de casa-de-vegetação utilizando a aveia (Avena sativa L.) como planta teste.
Luis Antonio Peñaherrera-Colina   +3 more
doaj   +1 more source

Identifying potentially suitable and accessible refugia to mitigate impacts of an emerging disease on a rare tree

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Identifying refugia from emerging threats is vital to ensure the persistence of rare and threatened species, but modeling habitat distribution for these species is challenging and the role of people in refuge management is rarely considered. Myrtle rust is an emerging infectious disease that represents a grave threat to the rare wetland tree ...
Sarah M. Herbert   +7 more
wiley   +1 more source

PERSISTÊNCIA DE Metarhizium anisopliae spp NO SOLO SOB DIFERENTES CONDIÇÕES DE TEMPERATURA E UMIDADE

open access: yesRevista Caatinga, 2009
The fungi entomopathogenic are actually objects of works according to their importance in the ecological system. This work analysed the persistence of Metarhizium anisopliae var. anisopliae and M. anisopliae var.
Diana Mendonça Silva Guerra   +2 more
doaj  

Injúria potencial de herbicidas de solo ao girassol: IV - rendimento de aquênios e componentes do rendimento Potential sunflower injury by soil applied herbicides: IV - Achene yield and yield components

open access: yesPlanta Daninha, 1994
Conduziu-se um ensaio em campo na Estação Experimental Agronômica da Universidade Federal do Rio Grande do Sul, em Eldorado do Sul, RS, em 1989/90. O objetivo foi determinar o efeito dos herbicidas clomazone, chlorimuronethyl, imazaquin e imazethaphyr ...
Ribas A. Vidal, Nilson G. Flecks
doaj   +1 more source

Role of protected areas in mitigating range loss and local extinctions of terrestrial mammals

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Protected areas (PAs) are a major tool in biodiversity conservation, but the extent to which they mitigate species declines is often unclear. We evaluated the effectiveness of PAs in mitigating range contraction and local extinction for 483 terrestrial mammal species.
Andrea Cristiano   +5 more
wiley   +1 more source

Injúria potencial de herbicidas de solo ao girassol: II - chlorimuron-ethyl Potential suflower injury by soil applied herbicides: II - chlorimuron-ethyl

open access: yesPlanta Daninha, 1993
Conduziu-se um ensaio de campo na Estação Experimental Agronômica da Universidade Federal do Rio Grande do Sul, em Eldorado do Sul, RS em 1989/90. O objetivo do trabalho foi determinar o efeito residual potencial do herbicida chlorimuron-ethyl aplicado ...
Nilson G. Fleck, Ribas A. Vidal
doaj   +1 more source

Assessing limits of sustainable seed harvest in wild plant populations

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract Seed harvesting from wild plant populations is key for ecological restoration, but it may threaten the persistence of the source populations. Consequently, several countries have set guidelines limiting the proportions of harvestable seeds. However, these guidelines are inconsistent and lack a solid empirical basis.
Anna Bucharova   +3 more
wiley   +1 more source

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