881 resultados para Indicadores de produção agrícola


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Pós-graduação em Agronomia (Ciência do Solo) - FCAV

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Biodiesel is a reality in Brazil, due to the National Program of Biodiesel Production and Use (PNPB), which became mandatory in 2008 in adding 2% biodiesel in all diesel sold in a blend known as B2. The agribusiness sector responded to the federal program, facing many difficulties in biodiesel production, which highlights the supply of raw material. Problems related to biodiesel production were mainly the shortage of vegetable oil, because of demand from domestic and foreign markets, and rising prices of raw materials available for production, making this biofuel production economically feasible, even in Brazil, where agricultural production costs are among the most competitive in the world. The crambe is a specie that has aroused the interest of Brazilian producers due to oil content, hardiness, and mechanized cultivation, mainly for being a winter crop, it becomes one more option for farmers in this period. In addition, you can compose systems of crop rotation as well as being used as ground cover in winter. The aim of this study was to evaluate the potential for productive and cost of production of crambe, conducted in no-tillage system, to compare these parameters with other oil crops such as sunflower, canola and soybean. The trial was conducted in the agricultural year 2008 at the Experimental Farm Lageado belonging to the Faculty of Agronomic Sciences - UNESP, located in Botucatu - SP. The estimated yield was 1.507,05 kg ha-1, resulting in a production of 561,94 liters of oil per hectare. The cost of installation and conduct of crambe per hectare was R$ 875,87, resulting in a cost of R$ 1,56 per liter of oil, the lowest cost among the oilseed crops analyzed.

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This monograph is part of the works developed in the Scientific Initiation aimed at updating and improving the Atlas of Brazilian Agrarian Question - AQAB. For pioneering and scope of work-matrix, the objective this first part focused on the development of issues related to agricultural production, being drawn maps with data from the Municipal Agricultural Production-PAM 2012; Municipal Livestock Research-PPM 2012; Production of Vegetable Extraction and Forestry-2012, all analyzed from bibliographic review and joint interpretation of tables and graphs. Pari passu, this topic allowed the development of studies on peasant farms, because they are correlated subjects. Peasant farmers produce large portion of the food served to the population. Its features are its mode of production in the field, the way in which the activities take place within the family, the struggle for their social reproduction and by the earth, the practice of polyculture, preservation of the environment and the genetic diversity of species. The surplus production is sold on the market to meet other family demands unmet by production on their properties. We understand that both terms; Peasant or Farmer, refer to the same subject, but with different interpretations of their way of social reproduction and market relations...

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This monograph is part of the works developed in the Scientific Initiation aimed at updating and improving the Atlas of Brazilian Agrarian Question - AQAB. For pioneering and scope of work-matrix, the objective this first part focused on the development of issues related to agricultural production, being drawn maps with data from the Municipal Agricultural Production-PAM 2012; Municipal Livestock Research-PPM 2012; Production of Vegetable Extraction and Forestry-2012, all analyzed from bibliographic review and joint interpretation of tables and graphs. Pari passu, this topic allowed the development of studies on peasant farms, because they are correlated subjects. Peasant farmers produce large portion of the food served to the population. Its features are its mode of production in the field, the way in which the activities take place within the family, the struggle for their social reproduction and by the earth, the practice of polyculture, preservation of the environment and the genetic diversity of species. The surplus production is sold on the market to meet other family demands unmet by production on their properties. We understand that both terms; Peasant or Farmer, refer to the same subject, but with different interpretations of their way of social reproduction and market relations...

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A contribuição da adubação verde com leguminosas para melhoria do solo e produção agrícola depende em primeiro lugar da produção de biomassa e da sua composição química, que variam em função da espécie, região e estação de cultivo. Objetivo do presente trabalho foi avaliar a composição química da biomassa produzida por adubos verdes no Vale do Ribeira, São Paulo, Brasil. Para tal, foi conduzido um experimento em Pariquera-Açu-SP, no ano agrícola 2006/2007, em blocos casualizados, com quatro tratamentos (três adubos verdes e vegetação espontânea) e cinco repetições. Aos 30, 60, 90 e 120 dias após a semeadura, foram coletadas amostras em 1 m² da parte aérea das plantas e determinada a matéria fresca e seca, bem como a composição da biomassa. Crotalária, guandu e mucuna produziram, em ordem decrescente, as maiores quantidades de biomassa e foram mais eficientes do que a vegetação espontânea. A biomassa produzida pelos adubos verdes apresentou qualidade superior à produzida pela vegetação espontânea. Crotalária e guandu apresentam maior proporção de matéria seca acumulada no caule que possui baixo teor de N, alta relação C/N e L/N, variáveis que tornam a decomposição dos resíduos mais lenta. A análise particionada da matéria seca permite indicação mais precisa da composição química dos resíduos e a previsão da disponibilidade dos nutrientes no solo.

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This research comprises some considerations about production, productivity and scientific collaboration related to Information Science in geopolitical regions of Brazil, aiming at identifying their macro-level flow and trends. Reports were generated through identification of Information Science postgraduate programs and professors and collaborators who work on them - those reports were synthesized according to programs and regions, from the year of 2007 to 2009. We can conclude that the Southeast and Northeast regions are responsible for the higher production, productivity and collaboration indicators; we can also infer that the expansion of the relationship among different regions may offer the researchers opportunities to establish new partnerships, and to develop researches on emerging subjects in this scientific area

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This research comprises some considerations about production, productivity and scientific collaboration related to Information Science in geopolitical regions of Brazil, aiming at identifying their macro-level flow and trends. Reports were generated through identification of Information Science postgraduate programs and professors and collaborators who work on them - those reports were synthesized according to programs and regions, from the year of 2007 to 2009. We can conclude that the Southeast and Northeast regions are responsible for the higher production, productivity and collaboration indicators; we can also infer that the expansion of the relationship among different regions may offer the researchers opportunities to establish new partnerships, and to develop researches on emerging subjects in this scientific area

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This research comprises some considerations about production, productivity and scientific collaboration related to Information Science in geopolitical regions of Brazil, aiming at identifying their macro-level flow and trends. Reports were generated through identification of Information Science postgraduate programs and professors and collaborators who work on them - those reports were synthesized according to programs and regions, from the year of 2007 to 2009. We can conclude that the Southeast and Northeast regions are responsible for the higher production, productivity and collaboration indicators; we can also infer that the expansion of the relationship among different regions may offer the researchers opportunities to establish new partnerships, and to develop researches on emerging subjects in this scientific area

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Esta comunicação visa contribuir para o desenvolvimento da agricultura em MPB em Portugal. O estudo abarca uma análise temporal (1994-2014) e da implementação regional das suas principais produções (vegetal e animal). Em Portugal, a agricultura em MPB está concentrada maioritariamente nas regiões do Alentejo, Beira Interior e Trás-os-Montes, tanto em área como em operadores. De facto, em 2014, localizavam-se nestas regiões mais de 85,5% dos criadores de animais e 66,5% dos produtores agrícolas, correspondendo a aproximadamente 84% da área total dedicada à produção em MPB. No referido ano, a produção agrícola ocupava 228 841 hectares, distribuídos por 3 132 produtores, sobretudo pastagens (151 mil ha/1 100 agricultores) e olival (19 mil ha/1 400 agricultores). A produção animal englobava 1 003 produtores, maioritariamente criadores de bovinos (55% dos operadores/73 mil animais) e de ovinos (33% dos operadores/91 mil animais). Os operadores nacionais em MPB apontam como principais entraves à expansão do setor as dificuldades técnicas, designadamente, a obtenção de fatores de produção e o custo dos mesmos e, nas questões comerciais, ligadas à reduzida dimensão do mercado, desorganização da oferta e circuitos de comercialização desajustados, e desconhecimento dos consumidores relativamente ao MPB.

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Tese de doutoramento, Ciências do Ambiente, Universidade de Lisboa, Faculdade de Ciências, 2016

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A produção agrícola da soja teve papel fundamental no crescimento econômico do município de Sorriso. O objetivo deste artigo é levantar algumas suposições sobre possíveis relações entre a evolução da produção de soja em Sorriso-MT e os impactos na dinâmica do desenvolvimento do município, especialmente no que diz respeito à desigualdade na distribuição da renda. Trata-se de estudo de cunho exploratório, com técnica de pesquisa bibliográfica e documental, que se utiliza fonte de dados secundários. Os resultados apontam que, em Sorriso, as modernas tecnologias aplicadas ao setor agroexportador da soja têm se mostrado bastante eficientes em termos de competitividade, tanto em nível nacional quanto internacional. O município tem registrado elevados índices de crescimento, a exemplo do PIB agropecuário. Entretanto, os índices de concentração de renda do município, sugerem um esforço maior no sentido de buscar melhorias no âmbito do desenvolvimento econômico e social para a comunidade local.

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Este artigo discute os arranjos produtivos locais em atividades relacionadas ao setor de produção agrícola como uma estratégia de desenvolvimento econômico local e de inclusão social. Trata-se de uma pesquisa qualitativa, baseada na aplicação de três trabalhos documentais desenvolvidos no Programa de Mestrado da Universidade de Taubaté, SP. Os resultados indicaram que a aplicação do conceito de arranjo produtivo no setor primário é uma prática em exercício na região estudada, e pode proporcionar desenvolvimento naquela localidade, inserindo o pequeno e médio produtor no círculo virtuoso do desenvolvimento regional. O estudo indica a necessidade de ampliar o acesso às fontes de financiamento e de formação de mão de- obra qualificada. É também necessário, em parceria com o poder público, criar mecanismos de redução da distância entre o produtor rural e o mercado consumidor, reduzindo os conflitos típicos da visão centro-periferia.

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The contribution of green manure to soil improvement and crop production depends primarily on biomass production and its chemical composition, which vary depending on the species, region and growing season. The aim of this research was to evaluate the chemical composition of biomass produced by green manures in Vale do Ribeira, São Paulo, Brazil. In order to develop this research, was carried an experiment in Pariquera-Acu, in 2006/2007, in completely randomized blocks design with four treatments (three green manure and spontaneous vegetation) and five replications. At 30, 60, 90 and 120 after sowing samples were collected in 1m(2) of the shoots and determined fresh and dry, and chemical composition biomass. Sunhemp, pigeon pea and mucuna produced, in decreasing order, the largest quantities of biomass and were more efficient than the spontaneous vegetation. The biomass produced by green manure had higher quality than that produced by spontaneous vegetation. Sunhemp and pigeon pea have a higher proportion of dry matter in stems which have low N, high C/N and L/N ratio, variables indicating slow decomposition of residues. The analysis of dry matter partitioned to better indication of the chemical composition of the residues and the prevision of the availability of nutrients in the soil.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, Programa de Pós-Graduação em Agronegócios, 2016.