Métodos para avaliar a liberação e o parasitismo de Cotesia flavipes (Cameron, 1891) (Hymenoptera: Braconidae) em cana-de-açúcar

Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

Estudo lipidômico em folhas de cultivares de cana-de-açúcar e avaliação do papel desses metabólicos na ferrugem alaranjada

Pós-graduação em Química - IQ

Avaliação do desempenho operacional e de custos entre enfardadoras no recolhimento de palhiço de cana-de-açúcar

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeitos da fosfatagem em pré-plantio nas condições químicas do solo e no desenvolvimento da cultura da cana-de-açúcar

Pós-graduação em Ciência e Tecnologia Animal - FEIS

Lutas ecossociais no contexto do agronegócio canavieiro: (re)ordenação social nas lutas contra a queima de cana-de-açúcar e por uma reforma agrária ambientalizada. -

Pós-graduação em Direito - FCHS

Aplicação de sistemas neuro-fuzzy e espectrometria no infravermelho próximo para a identificação em tempo real do teor de nitrogênio foliar em cana-de-açúcar

Pós-graduação em Engenharia Elétrica - FEB

Geoestatística multivariada na delimitação de zonas de manejo na cultura de cana-de-açúcar

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desempenho e consumo de nutrientes em cordeiros alimentados com cana-de-açúcar hidrolizada sob diferentes condições

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Características da cana-de-açúcar in natura e hidrolisada com cal virgem em diferentes tempos de estocagem

Our objective was to evaluate the chemical composition and in vitro digestibility of dry matter of hydrolyzed sugar cane in different storage times. We conducted the trial in the Forage Sector at UNIFENAS, campus of Alfenas (MG) in 2010. The data were analyzed as completely randomized design in factorial scheme 2 (sugar cane without lime and hydrolyzed with 1.0% of lime, basis of fresh matter) x 6 (six times of storage: 0, 24, 48, 72, 96 and 120 hours), with three replicates. The sugar cane stored without lime showed lower dry matter (DM), crude protein, neutral detergent fiber and acid detergent fiber contents compared to hydrolyzed sugar cane. However, the hydrolyzed sugar cane showed higher contents of organic matter (OM) and total digestible nutrients. We reported higher in vitro digestibility of DM and OM when the sugar cane was not hydrolyzed. This can be explaining by better chemical composition of sugar cane without lime. The storage of sugar cane without lime shows results more interesting because the chemical composition and digestibility is better than hydrolyzed sugar cane. So, we not recommended using lime on the sugar cane. Moreover, the sugar cane without lime can be stored until 96 hours after cut.

Uma análise da evolução da área plantada da cana de açúcar no estado de São Paulo nos últimos 10 anos

This paper analyzes the evolution of the sugar cane plantation area in the State of São Paulo in the last ten years. It presents a concise report about the history of this raw material in the country and describes how the sector relating to sugar cane was before the economic deregulation and what changes occurred after 1990, emphasizing the territorially expansion occurred in the State of São Paulo. The paper concludes that the expansion of the sector relating to sugar cane occurred much more territorially than through productivity gains, considering that these ganis were bigger in the State of São Paulo, and that the economic deregulation left a legate of heterogeneity in this sector

Utilização da programação por metas e análise por envoltória de dados para seleção de variedades de cana de açúcar para plantio em uma usina sucroalcooleira

Organizational change is occurring in the Brazilian agribusiness from sugar cane in recent decades. Aspects of management in this sector are being changed due to the importance of its products, especially ethanol and electricity. It is observed in the literature a lack of quantitative studies in this Brazilian sector, particularly the selection of sugarcane varieties for planting. This study proposes the use of Goal Programming (GP) with Data Envelopment Analysis (DEA) to select efficient varieties of sugarcane for planting in a sugar and ethanol milling company. The study allowed the identification of efficient sugarcane varieties. This way, it helped the company to make more reliable decisions, favoring the increase of productivity

Uso de algoritmos genéticos na otimização do sistema de coleta do palhiço de cana-de-açúcar

The Brazilian government has convinced the world that ethanol deriving from sugar cane is a promissory means of sustainable fuel for vehicles. There is a great growth of ex vehicles , i.e, run both by ethanol and gasoline, due to competent automotive industries and e cient alcohol production technology. In 2009 and 2010 the ethanol production was 25.7 billion liters and 53.8% of sugar cane production was destined to alcohol production. Nevertheless, the sugar production also derived from sugar cane should increase in 2011. Brazil produced 33 million tons of sugar in the last harvest. With sugar cane on the rise production is arising new environmental problems. The harvest using mechanized cut besides improving the logistic transportation system leaves the generating residue in the eld. This residue is a mixture of straw, leavings and scrap of sugar cane named sugar cane crop residue and corresponds to 30% of biomass and can be burned and produce electricity by cogeneration. But the transport the sugar cane crop from the eld is expensive due costs involved in the transport system. This work aims to propose a formulation for the bales collecting problem from sugar cane eld to mill that minimize the costs involved in the transport system. The computational tests use the C++ language and an algorithm based on genetic algorithms techniques

Rafard (SP) e a cultura da cana-de-açúcar: considerações sobre a urbanização e as relações sociais

We intend to expose this paper a brief review about the social factors that include the capitalist system. Having the city of Rafard as our focus of study, we are going to analyze how agribusiness and migration have great political significance in this small town, and still are determining factors for socio-cultural training of its citizens, as well the formation and economic development of their own city. We are going to observe how a town with only 8.599 inhabitants is subjected to the laws dictated by capital through the interference of a large sugarcane agro industrial production unit present in its territory

Caracterização e mapeamento da cultura da cana-de-açúcar no município de Rio Claro (SP) por meio de técnicas de sensoriamento remoto e sistemas de informações geográficas

This paper discusses about the use of remote sensing image and processing digital images tools for mapping and assessing the effect on the biomass of the culture of sugar cane in the city of Rio Claro. We used satellite images from CBERS in the passages of 19/04/2009 and 23/09/08, which correspond respectively to the stages where the sugar cane appeared in growing and adult pre-harvest stage. In these images, we applied procedures of digital processing, as the application of the procedures for extending linear contrast, radiometric normalization, Normalized Vegetation Index (NDVI) and pixel by pixel classification by ISOSEG through of the software SPRING. As a result we obtained mapping of the distribution and development stages of the culture of sugar cane in the city of Rio Claro and the mapping of the existing biomass of this culture, showing that the method used to assess the relative effect on biomass in culture of sugar cane was efficient, and that images of low-medium resolution are not the most suitable for the mapping of this culture

Carvão (Sporisorium scitamineum) e podridão-abacaxi (Ceratocystis paradoxa) em cana-de-açúcar (Saccharum spp.): uma revisão

Sugarcane (Saccharum sp.) is an important grass cultivated in tropical and subtropical regions of the world, such as in Br, Ind, and Ch, and has its biomass being raw material for production of sugar, fuel ethanol, and some other derivatives. Fungal diseases infect sugarcane fields worldwide, damaging crops and thus, causing great economic losses. Fungal specialized structures act during all Pathogen-Host Relationship Cycle (PHRC) (survival, dissemination, infection, colonization, and reproduction of pathogen), maintaining fungal populations in cultivation soil, infecting plants in following crops and vegetative propagation of sugarcane by infected seeds may allow fungal transportation into regions where diseases haven’t occured before. Biotechnological methods and approaches have significantly contributed to understanding of the relationship among parasite and host, as to diseases management (control, detection, and prevention). Some techniques have daily applications in Agriculture, while others are only used in research and to breeding of host resistant varieties. Among notable diseases, smut (Sporisorium scitamineum) and pineapple disease (Ceratocystis paradoxa) are important because they cause damage and losses in sugarcane regions, although there are different periods for each one to occur. This work aims to review the PHRC for each patosystem, the biotechnological methods and approaches and its perspectives in the study and management of these diseases. As environment is an important factor to the effectiveness of PHRC, one chapter is dedicated to Global Climate Change (GCC) and its possible influences over these diseases in a longterm period