Results 31 to 40 of about 20,724 (135)

Agropecuária brasileira: desempenho regional e determinantes de produtividade

Revista de Economia e Sociologia Rural, 2013
Este estudo teve por objetivo medir a produtividade líquida do trabalho e da terra no Brasil, em seus estados e municípios, e identificar os fatores que exercem influência sobre estas produtividades, com base nos dados do Censo Agropecuário de 2006, do ...
João Felema, Augusta Pelinski Raiher, Carlos Roberto Ferreira   +2 more
doaj   +1 more source

Sampling for Socially‐Inclusive Adoption Studies (SSAS): A new interdisciplinary sampling method for DNA‐fingerprinting‐based crop varietal adoption studies

PLANTS, PEOPLE, PLANET, EarlyView.
DNA fingerprinting is becoming the standard measurement procedure in crop adoption studies in the Global South, yet the lack of systematic and intentional sampling regarding which farmer to go to the plot with may bias results from these methods. We introduce a methodological innovation, Sampling for Socially Inclusive Adoption Studies (SSAS), to offer
Yoselyn Hernandez Chaves, Luis A. Sanchez Chacon, Martina Occelli, Sergio Puerto, Ruth Castro‐Vásquez, Bethany F. Econopouly, Joyce Estrada‐Gamboa, Erica Lopez, Vanessa Mora, Deborah Rubin, Kelly R. Robbins, Roberto Camacho, Hale A. Tufan   +12 more
wiley   +1 more source

Diagnóstico da automação na produção leiteira Diagnosis of automation in dairy farming

Ciência e Agrotecnologia, 2008
Objetivou-se neste trabalho realizar um diagnóstico da automação na produção leiteira na região sul de Minas Gerais, enfatizando os tipos de automação existentes, melhoria do processo produtivo nas propriedades leiteiras com adoção da automação e as ...
Juliana Vilela Lourençoni Botega, Roberto Alves Braga Júnior, Marcos Aurélio Lopes, Giovanni Francisco Rabelo   +3 more
doaj   +1 more source

Assessing pest control treatments from phenology models and field data

Pest Management Science, Volume 81, Issue 4, Page 1851-1859, April 2025.
Theoretical effect of two larvicide sprays, two delayed larvicide sprays that follow an oil treatment, mating disruption, and mating disruption plus four virus sprays on codling moth larva (brown for treated versus pink for untreated) and adult (dark green for treated versus light green for untreated) phenology.
Diego F. Rincon, Javier Gutierrez‐Illan, David W. Crowder   +2 more
wiley   +1 more source

Genotype by environment interaction in common bean cultivars for iron and zinc concentration in grains

Semina: Ciências Agrárias, 2022
Iron and zinc deficiencies in humans can cause serious health problems. Increasing the iron (IC) and zinc (ZC) concentrations in common bean (Phaseolus vulgaris L.) grains using genetic breeding can be an effective strategy to prevent these problems ...
Poliana Regina Carloni, Patrícia Guimarães Santos Melo, Leonardo Cunha Melo, Luís Cláudio de Faria, Thiago Lívio Pessoa Oliveira de Souza, Válter Martins de Almeida, Hélio Wilson Lemos de Carvalho, Israel Alexandre Pereira Filho, Marcelo Sfeir de Aguiar, Helton Santos Pereira   +9 more
doaj   +1 more source

Social Sustainability in Circular Bioeconomy Business Models: Insights From Argentina

Sustainable Development, EarlyView.
ABSTRACT Research on circular bioeconomy business models (CBEBM) has largely prioritised environmental and economic aspects, leaving out the social pillar. To address this gap, this paper analyses to what extent and in what ways social sustainability is integrated into CBEBM, based on 12 cases from northern Argentina, a region with high potential for ...
Celina N. Amato, Mónica Buraschi, Karen M. Siegel   +2 more
wiley   +1 more source

Bat community assembly in the ecotone of two neotropical biodiversity hotspots is determined by environmental filtering rather than historical factors

Journal of Animal Ecology, EarlyView.
We demonstrate that environmental filtering is the primary mechanism shaping bat communities across the Cerrado–Atlantic Forest ecotone. By integrating phylogenetic diversity, environmental gradients, and coevolutionary assembly models, our study provides new insights into the processes maintaining biodiversity in a globally important transition zone ...
Daiana Cardoso Silva, Hernani F. M. Oliveira, Fabricius M. C. B. Domingos   +2 more
wiley   +1 more source

Efeitos potenciais da política tributária sobre o consumo de alimentos e insumos agropecuários: uma análise de equilíbrio geral inter-regional

Revista de Economia e Sociologia Rural, 2007
Este trabalho analisa os efeitos potenciais de longo prazo sobre a economia brasileira de duas políticas no campo da tributação indireta: a) a redução dos tributos sobre o consumo de alimentos pelas famílias e; b) a redução dos tributos sobre os ...
Cárliton Vieira dos Santos, Joaquim Bento de Souza Ferreira Filho   +1 more
doaj   +1 more source

Predicting global habitat suitability and invasion risks of the red gum lerp psyllid Glycaspis brimblecombei under current and future climates

Agricultural and Forest Entomology, EarlyView.
Ecological niche modelling identified highly suitable habitats for Glycaspis brimblecombei across tropical, subtropical and temperate regions. Future climate projections indicate a moderate contraction of suitable areas, with persistence of core climatic suitability. Model performance was robust (AUC = 0.880; TSS = 0.634; CBI = 0.803), with temperature
Fernanda de Aguiar Coelho, George Corrêa Amaro, Adriene Caldeira Batista, Edmond Joseph Djibril Victor Barry, Muhammad Haseeb, Marcus Alvarenga Soares, Owusu Fordjour Aidoo, Sebastião Lourenço de Assis Júnior, Ricardo Siqueira da Silva   +8 more
wiley   +1 more source

Caracterização dos principais atores envolvidos com a agricultura familiar em uma comunidade quilombola no semiárido do Piauí, Nordeste do Brasil

Revista de Ciências Agroveterinárias
O presente estudo objetivou investigar a relação que diferentes atores envolvidos com a agricultura familiar, residentes em uma comunidade Quilombola no município de Paulistana - Piauí, estabelecem com as atividades agropecuárias.
Tomás Guilherme Pereira da Silva, Luisa Beatriz Almeida, Ana Lara Rodrigues Aquino, Artur Rodrigues Batista Granja, Fernando Luis dos Reis Sousa, Francilene Borges de Sousa, Marta Rodrigues de Macedo, Pedro Renan da Cruz Campelo, Victor Gurgel Pessoa, Gutenberg Lira Silva, Wandemberg Rocha Freitas   +10 more
doaj   +1 more source