Regiões de procedência de abacaxi para a Ceagesp de São Paulo e análises qualitativa, comparativa e das causas da valoração dos frutos

Pós-graduação em Agronomia (Horticultura) - FCA

Modelagem matemática para a dispersão de fungos fitopatogênicos via autômatos celulares

Brazil is a major world producer and exporter of agricultural products like soybeans, sugar, coffee, orange and tobacoo. However, the action of phytopathogenic fungi has been one of the largest challenges encountered in the field as they are responsible for approximately 25 to 50 per cent of losses in crops of fruits and vegetables. The presence of these pathogens is always a problem, because the damage on the tissues and organs promote lesions which decreses growth vegetation and often leads the individual (host) to death. Therefore, it is crucial to understand the process of spreading of these pathogens in the field to develop strategies which prevent the epidemics caused by them. In this study, the dispersal of fungi phytopathogenic in the field was modeled using the automata cellular formalism. The growth rate of infected plants population was measured by the radius of gyration and the influence of host different susceptibility degrees into the disease spread was assessed. The spatial anisotropy related to the plant-to-plant space and the system’s response to distinct seasonal patterns were also evaluated. The results obtained by a mean field model (spatially implicit models) emphasized the importance of the spatial structure on the spreading process, and dispersal patterns obtained by simulation (using a cellular automata) were in agreement with thse observed in data. All computational implementation was held in language Cl

Caracterização do processamento artesanal de produtos agropecuários em assentamentos rurais de Ilha Solteira-SP: das estratégias de produção à comercialização

Pós-graduação em Agronomia - FEIS

Um olhar sobre o setor agrícola brasileiro: análise histórico-quantitativa dos governos FHC e Lula

This work aims to characterize and analyze the development and modernization of the Brazilian agricultural sector in the period from 1960 to the end of the Lula government, through the military dictatorship, the plans to combat inflation in the 1980s and 1990s and the programs social Lula's government. The performance of commercial agriculture is emphasized in the FHC and Lula administrations

Restrição externa, dependência estrutural de commodities primárias e o investimento direto externo no Brasil

As the beginning of the discussion about the reprimarization process of the Brazilian exportations, or about a deindustrialization process of the country foreign sales, this study purpose that the discussion, actually, should be about the existence of the commodities structural dependence as a way to face the foreign restrictions. Therefore the intention is to show that, historically, the way that the Brazilian economy has crossed for its development depends of the foreign capital, mainly in its way of Foreign Direct Investment (FDI), and in the balance generated by the primary products, which make us try to understand the impact of this capital for the equilibrium of the Brazilian Payment Balance and also for the economy. These points were discussed not only based on the Brazilian classic writers as Francisco Oliveira, Caio Prado Jr. and Celso Furtado, but also using the newest studies which contributes to point the causes and consequences of the external capital dependence in the actual scenario. The conclusions acquired in the end of the study, indicates the fact that the Brazilian specialization in products of low aggregated value is not recent. Brazil is, historically, a competitive country in primary products. At the same time, the country importation always was a pressure factor of the National Payments Balance, being composed by products with more aggregated value. According to some authors, this characteristic of the Brazilian Economy will be surpassed with the economic opening process, which will attract external capital making possible the modernization of the Brazilian productive sector. Therefore, we can claim that the FDI, in the way it has been inserted in the country, does not offer the opportunity to get out of the commodities dependence, as generators of the payment balances, because the country international competitive standard didn t get any important changes, keeping itself out of the step related to the global standard which has been intensified in products with more aggregated value. The changes in the national insertion standard directed to more technological products is really important to surpass the historical scenario of commodities dependence, making the country less vulnerable to external crisis.

Marcos determinantes da pesquisa agropecuaria brasileira.

a evolucao das instituicoes de pesquisas agropecuaria no Brasil esta caracterizada por marcos determinantes, que direcionaram todo o processo de geracao de tecnologia agricola no Pais. Da criacao do Jardim Botanico a da EMBRAPA, o processo monodisciplinar predominou e os problemas de abastecimento e o crescimento da populacao limitaram a exportacao de produtos agricolas, ja que os investimentos na agricultura nao foram suficientes para elevar a producao. Isso levou a mudancas no rumo da politica agricola, com investimentos na geracao de tecnologias. Assim, a pesquisa agropecuaria brasileira passou a ter uma nova orientacao, em que a abordagem teorica e a interdisciplinariedade.

Abastecimento de alimentos: a intervenção do estado e a reprodução da força de trabalho

Trata da questão do abastecimento de alimentos no Brasil no que se refere às intervenções que o Estado realizou historicamente no setor. Para tanto, discute inicialmente a controvérsia metodológica entre a teoria neoclássica e a economia política na abordagem desse problema. Privilegiando a ótica da economia política em que o eixo de análise é a acumulação de capital e a reprodução da força de trabalho, busca entender a natureza e o caráter das intervenções do Estado brasileiro.

Avaliação do sistema radicular da soja sob sistemas de manejo do solo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Evaporação de gotas de caldas contendo fungicidas e adjuvantes depositadas em superfície

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise econômica da aplicação de biossólido na agricultura

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Otimização da tecnologia de assistência de ar em pulverizador de barras através da umidificação do fluxo de ar

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Influência de diferentes doses de salinidade e níveis de água na produção de cenoura

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)