Results 41 to 50 of about 6,901 (164)

Produção, decomposição e ciclagem de nutrientes em resíduos de crotalária e milheto, cultivados solteiros e consorciados. [PDF]

open access: yes, 2017
O objetivo deste trabalho foi avaliar a produção de fitomassa e as taxas de decomposição e liberação de macronutrientes e de silício, nos resíduos vegetais de crotalária (Crotalaria juncea) e milheto (Pennisetumglaucum), em cultivo solteiro e consorciado.
CASTRO, G. S. A.   +4 more
core  

Preliminary Functional Group Patterns of Arthropods in a Maize Field and Adjacent Cultivated Refuge Strip in South Africa

open access: yesAustral Entomology, Volume 65, Issue 2, May 2026.
ABSTRACT Agricultural intensification is a major driver of global arthropod declines. Habitat management strategies, such as cultivated refuge strips (CRS), can counteract these effects by enhancing biodiversity, promoting conservation biological control and improving agroecosystem resilience.
K. Strydom   +3 more
wiley   +1 more source

A First Quantification of Plant Endemism in the Manica Highlands (Zimbabwe–Mozambique) and the Significance of Open Habitats

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
We present here the first quantitative assessment of plant endemics from the Manica Highlands (Zimbabwe‐Mozambique), totalling 216 taxa, representing over 9% of the estimated total flora. A major finding is that 173 (80%) endemic taxa are principally or entirely confined to open montane habitats such as grassland, bare rock, crags and scrub or dwarf ...
Jonathan Timberlake, Vincent Ralph Clark
wiley   +1 more source

Acúmulo de biomassa e nutrientes por adubos verdes e produtividade da canaplanta cultivada em sucessão, em duas localidades de São Paulo, Brasil. [PDF]

open access: yes, 2013
Os objetivos deste trabalho foram avaliar a produção de massa de matéria seca, o acúmulo de nutrientes e infecção natural por fungos micorrizicos arbusculares (FMAs) de espécies de adubação verde e quantificar a produtividade agrícola e industrial da ...
Ambrosano, Edmilson José   +7 more
core  

Convergence and parallelism in the evolution of plant metabolism

open access: yesJournal of Integrative Plant Biology, Volume 68, Issue 4, Page 1013-1031, April 2026.
Similar traits in different organisms may originate from shared ancestry or evolve independently. The terminology used to define phenotypic similarity is often confusing. This review attempts to clarify the definitions and present examples from plant domestication and specialized metabolism to explain how complex traits evolve repeatedly in plants ...
Federico Scossa   +4 more
wiley   +1 more source

NOVIDADES TAXONÔMICAS EM ESPÉCIES BRASILEIRAS DE CROTALARIA SECT. CALYCINAE WIGHT &ARN. (LEGUMINOSAE-PAPILIONOIDEAE)

open access: yesRodriguésia
RESUMO São propostas as sinonimizações de quatro espécies e de duas variedades: Crotalaria brasiliensis Windler & S.G. Skinner em Crotalaria grandiflora Benth., Crotalaria barretoensis Windler & S.G.Skinner em Crotalaria martiana Benth.subsp.
Andréia Silva Flores   +2 more
doaj   +1 more source

Performance de espécies de adubos verdes num Latossolo Vermelho distroférrico sob manejo ecológico em Dourados, Mato Grosso do Sul. [PDF]

open access: yes, 2012
bitstream/item/69055/1/075-salomao-performance.pdfPublicado também no Cadernos de Agroecologia, v.
CARNEIRO, L. F.   +4 more
core  

Structural Quality of an Ultisol Under Long‐Term Different Tillage Systems and Cover Crops With Corn in Northeast Brazil

open access: yesSoil Use and Management, Volume 42, Issue 2, April‐June 2026.
ABSTRACT Dual‐purpose corn cropping is a widespread and economically important agricultural activity in Brazilian rural areas. The objective of this work was to study the structural quality of a dystrophic Red‐Yellow Ultisol under different tillage systems, previous crops and inoculant treatments, and its relationship with corn yield.
Alceu Pedrotti   +8 more
wiley   +1 more source

Produção de raízes de mandioca em sistemas agroflorestais seqüenciais submetidos a diferentes manejos de adubações verde e fertilizantes no Nordeste paraense. [PDF]

open access: yes, 2011
A agricultura tradicional na Amazônia tem sido afetada pelo crescimento populacional, pela crescente minifundização dos sistemas agrários, redução dos períodos de pousio, altas taxas de desmatamento e emissão de gases que comprometem a continuidade desse
BORGES, A. C. M. R.   +2 more
core  

Mitogenomic phylogeny of Eurytoma Illiger (Hymenoptera: Eurytomidae): Genus delimitation, species‐group assessment and recurrent host‐use transitions

open access: yesSystematic Entomology, Volume 51, Issue 2, April‐June 2026.
Mitogenomes from 166 Eurytomidae confirm Eurytoma is polyphyletic; 10 species groups are recovered in Eurytoma s.s., and several lineages are reassigned to other genera or newly delimited clades. Conservative head and mesosoma traits, especially the postgenal depression and ventral shelf, track mitogenomic clades closely, supporting their diagnostic ...
Duk‐Young Park   +2 more
wiley   +1 more source

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