Programa de Pós-Graduação em Agriculturas Amazônicas - PPGAA/INEAF
URI Permanente desta comunidadehttps://repositorio.ufpa.br/handle/2011/2306
O Programa de Pós-Graduação em Agriculturas Amazônicas (PPGAA), é atualmente um programa do Instituto Amazônico de Agriculturas Familiares (INEAF) anteriormente Núcleo de Estudos Integrados sobre Agricultura Familiar (NEAF) e Núcleo de Ciências Agrárias e Desenvolvimento Rural (NCADR) da Universidade Federal do Pará. O PPGAA contempla a produção de conhecimentos capazes de subsidiar professores, pesquisadores e profissionais de nível superior que atuam no espaço agrário, quer seja na elaboração de políticas públicas voltadas para o meio rural, no apoio e consolidação da educação do campo e/ou na implementação de ações de pesquisa-desenvolvimento voltados para a agricultura familiar.
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Item Acesso aberto (Open Access) Artropodofauna associada a diferentes sistemas de cultivo de açaizeiro no nordeste paraense(Universidade Federal do Pará, 2012-08-31) RIBEIRO, Suelem Moreira; LEMOS, Walkymário de Paulo; http://lattes.cnpq.br/6841621785311887The açaí palm (Euterpe oleracea Mart.) is an important crop for Pará agribusiness for reaching new consumer markets in Brazil and in different countries. However, the growing commercial expansion that açaí has shown in recent years has reflected also in the significant increase in its acreage, which may result in the incidence of insect pests associated with these agroecosystems, thus requiring research actions focused on the alternative management and control of these biotic constraints. Simultaneously, new models of fruit crops have been tested successfully in the state of Pará, highlighting, among them, Agroforestry Systems (AFSs), aimed at increasing the number of crops (annual, permanent and / or forestry) implanted in an area. Among the benefits of AFSs stands out for its potential to maintain and multiply diversified beneficial entomofauna when compared to monocultures. Therefore, this study aimed to understand and compare the biodiversity of arthropods associated with the açaí palm in different cropping systems of the family farm in the northeast of Pará. It was analyzed three areas, two AFSs areas that had açaí palm as one of the main crops in the Marapanim town and an area of açaí monoculture, in the Igarapé-Açu town. In each area were implanted 45 Pitfall traps, which were equally distributed in three subareas: (a) near the açaí palm plants inside the plantation; (b) in the secondary forest around the crops; and (c) in the transition area between cultivation and secondary forest. Samples were collected into four distinct periods, one in the rainy season (CH), a transition period between the rainy and dry (CH / SE), one in the dry season (SE) and another collection corresponding to the transition period between dry and rainy (SE / CH). The insects biodiversity assessments were made in the soil (Pitfall traps). Arthropods (insect pests and natural enemies and spiders) collected in the field were stored in plastic containers (150 mL) containing 70% alcohol, and transported to the Entomology Laboratory of Embrapa Amazônia Oriental, where they were sorted, quantified and identified taxonomically . It was concluded that the periods of the year that most favor the presence of soil arthropods, regardless of crop fields, are the transition periods CH / SE and SE / CH. There was also a reduction in the population of ants in the three areas of secondary forest analyzed, and the gender Solenopsis (Westwood), Wasmannia (Forel) and Azteca (Forel) the most frequent in these areas. The area with açaí monoculture has a higher abundance of ants than the two AFSs analyzed. The spider family Lycosidae was found most frequently in this study, with the most abundant being Pacovosa gender. Agroforestry systems, if properly managed, form conducive environment for the arthropods species diversity like spiders and ants, which are admittedly efficient organisms in natural control of insect pests in crops. Transition periods grouped more individuals, followed by AFS area located in the Marapanim town, which represents the area most changed among the analyzed areas. Secondary forests are areas with smaller grouping of individuals and smaller gender diversity of ants and spiders.Item Acesso aberto (Open Access) Desafios e potencialidades de inserção do açaí (Euterpe oleracea Mart.) na alimentação escolar no Estuário Amazônico(Universidade Federal do Pará, 2017) VIANA, Antonio Wemerson de Lima; ALVES, Lívia de Freitas Navegantes; http://lattes.cnpq.br/1337509239539346Item Acesso aberto (Open Access) Tipologia do sistema de manejo de açaizais nativos praticado pelos ribeirinhos em Belém, estado do Pará(Universidade Federal do Pará, 2005-04-18) AZEVEDO, James Ribeiro de; KATO, Osvaldo Ryohei; http://lattes.cnpq.br/4241891652832872The Aςaizeiro (Euterpe Oleracea Mart.) is one of the main sources of income and consumption for people (local farmer families known as ribeirinhos) living in the municipal district of Belém, State of Pará. They manage the fruit of the aςaizal (aςaí palm trees) and, among the other products, the palm heart, commonly known as palmito. The objective of this study was to identify and classify the different agricultural practices used in the management of native aςaizais. The analysis include a study of the different types of management used by the ribeirinhos with the objective of contributing to the implementation of proposals of management of native aςaizais. The research was undertaken in two main islands in Belém, known as Ilha de Paquetá (Paqueta island) and Ilha Grande (Big Island). The study approach was based on the methodology of the diagnostics of agrarian systems, which involve interviews with both open and closed questions. Twenty-two families from Ilha Grande and thirty-one families from Ilha de Paquetá were interviewed, and the questions involved issues concerning the family, the living environment, patrimony, the agrarian situation, income, techniques used in the management of açaizal and commercialization. Research findings showed that the system of management of native açaizais has gone through three phases. In the first phase, the collection of the açaí fruit is basically for consumption. In the second phase, the palm heart started to be commercialized and the açaí fruit continues to be used for consumption. In the third phase, the actual system of management is oriented to the production of the açaí fruit for commercial and consumption purposes, with the palm heart contributing additional income. Findings from the survey showed that the three main techniques used in the management of açai crop are intensive, moderate and natural cropping (without handling). The intensive 6 handling requires intensive labor in the açaizais and the ribeirinhos income comes basically from the açaí fruit. This type of technique has shown to yield the best overall results. The moderate handling requires less labor in the açaizal and ribeirinhos complement their income from other sources. The natural cropping (without handling) just involves the harvest of the açaí fruit and the ribeirinhos income comes from activities away from the farm.Item Acesso aberto (Open Access) Várzea ou terra firme? A (re) produção do sistema família- estabelecimento na microbacia do Aricurá- Cametá- Pará(Universidade Federal do Pará, 2018-03-26) AMARAL, Ana Julia Mourão Salheb do; SANTOS, Sônia Maria Simões Barbosa Magalhães; http://lattes.cnpq.br/2136454393021407; MARTINS, Paulo Fernando da Silva; http://lattes.cnpq.br/3223618156268542Várzea and terra firme environments are used by populations inhabiting the Amazonian floodplains, and often residents may or may not simultaneously dispose of these two environments, which require differentiated survival strategies. On farmers´ properties, acai palms (Euterpe oleracea Mart.), have increased due to the expansion of national and international markets. The Aricurá River, tributary of the lower course Tocantins forms a micro-basin located to the south of the city of Cametá, state of Pará, which is formed by environments of várzea and terra firme; these environments are sometimes associated to one another; here açaí collection is one of the main activities carried out by residents. Thus, the conditions of this micro-basin allow us to approach, in one landscape unit, how these environments are used by families and what relevant factors operate in terms of exploration, especially those related to the production of the açai palm, by these families on their rural establishments. In this way, the main objective of this research was to evaluate the influence of the availability of floodplain areas for productive activities, especially the production of açaí fruits, and in the socioeconomic reproduction of the family-establishment system. Research used a dual approach, one a productive technical and another of socioeconomic nature, this junction being considered a differentiated element of the current project. Research was carried out in eleven agricultural establishments distributed between the communities of Aricurá and Ajó; field research was done in three stages. Data collection involved different elements and categories: social, economic, epistemic and agronomic according to the requirement of the objectives and the hypotheses; the following categories of analysis were included: historical and the life dynamics of the residents of the communities; family income; labor relation (relation UT / UC) and labor used; use and management of establishments; production systems; landscape analysis. Plant diversity and palm bunch thinning index. Research shows that in the Aricurá micro-basin three factors are of great relevance, acting on the possibilities for natural resource use carried out by the families in their rural establishments: the availability of a floodplain environment, family characteristics and açaí as the main production activity.