Agroecosystem
Mostrando 1-12 de 67 artigos, teses e dissertações.
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1. Effects of organic liquid fertilizers on biological activities and fruit productivity in open-field cherry tomato
ABSTRACT This study evaluated the effects of liquid fertilizers (LF) with farm-derived renewable resources on biological activities and chemical attributes of the soil and fruit in an open-field tomato (Lycopersicon esculentum var. cerasiforme) experiment conducted in South Korea in the 2019 growing season. The LF treatments included bone+fish meal (BF), fis
Bragantia. Publicado em: 2020-09
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2. Decomposition and Nutrient Release of Cover Crops in Mango Cultivation in Brazilian Semi-Arid Region
ABSTRACT Knowledge of the decomposition dynamics of aboveground phytomass and its release of nutrients in mixtures of cover crops as well as the impact on the soil tillage system is fundamental for the sustainable management of agroecosystems. This work aimed to evaluate whether soil tillage and the choice of cover crops cultivated in the interrows can be te
Rev. Bras. Ciênc. Solo. Publicado em: 29/04/2019
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3. Sesame phyllody associated with a 16SrI-B phytoplasma, a ‘Candidatus Phytoplasma asteris’-related strain, in Paraguay
ABSTRACT: Sesame (Sesamum indicum L.) plants exhibiting symptoms of phyllody disease were observed in commercial fields in Paraguay. The symptoms were indicative of infection by phytoplasmas. Thus, the present study investigated the association between affected plants and phytoplasma, which was later analyzed using molecular and phylogenetic methods. Total D
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-02
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4. Environmental and Ecosystem Services, Tree Diversity and Knowledge of Family Farmers
ABSTRACT The objective of this work is to identify environmental and ecosystem services provided by trees from the perception of family farmers in the Serra dos Tapes, southern Rio Grande do Sul, Brazil, addressing the relevance of species for ecosystem sustainability of family farming. Environmental and ecosystem services offered by the tree flora of semi-
Floresta Ambient.. Publicado em: 10/12/2018
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5. The behavior of Aphis gossypii and Aphis craccivora (Hemiptera: Aphididae) and of their predator Cycloneda sanguinea (Coleoptera: Coccinellidae) in cotton-cowpea intercropping systems
ABSTRACT The intercropping is an important cultural practice commonly used in pest management. It is based on the principle that increased plant diversity in the agro-ecosystem can lead to reductions of pest populations in the crop. The current study aimed to assess the impact the colored fiber cotton-cowpea intercropped systems on Aphis gossypii and Aphis c
An. Acad. Bras. Ciênc.. Publicado em: 01/02/2018
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6. Dung Beetles Associated with Agroecosystems of Southern Brazil: Relationship with Soil Properties
ABSTRACT Knowing the biodiversity of dung beetles in agricultural and livestock environments is the basis for understanding the contribution that these organisms make in nutrient cycling and ecosystem functions. The aim of the present study was to investigate the structure of copronecrophagous dung beetle communities inhabiting the main agroecosystems in sou
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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7. Seasonal population abundance of the assembly of solitary wasps and bees (Hymenoptera) according to land-use in Maranhão state, Brazil
ABSTRACT Solitary wasps and bees (Hymenoptera) play a key role in ecosystem and agroecosystem functioning. Crops may benefit from biological pest control and pollination carried out by predatory solitary wasps and solitary bees, respectively. Here, we aimed at evaluating the abundance and faunistic compositions of solitary wasps and bees in respect to land-u
Rev. Bras. entomol.. Publicado em: 2016-06
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8. Seasonality of soil water exchange in the soybean growing season in southern Brazil
The processes of water transfer in the soil-plant-atmosphere system are strongly affected by soil use and management. Differences in the dynamics of soil water transfer between no-tillage (NT) and conventional tillage (CT) practices during a soybean (Glycine max) growing season in southern Brazil were assessed in this study. All the water balance components
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02
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9. Análisis de suelo y foliar en guanábano (Annonamuricata L.) en blanca espuma municipio de Alto Lucero, Veracruz
This study was conducted in a seven years old plantation. Soil and foliar analyzes were performed to determine the physical and chemical characteristics of the soil and the nutrient status of the tree for two climatic seasons (dry and wet). In each of these eight samples were obtained from soil at a depth of 0 to 30 cm, which were mixed to obtain two compoun
Rev. Bras. Frutic.. Publicado em: 2014
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10. Morfohistología testicular de Ceratophrys ornata (Bell) (Amphibia, Anura, Ceratophryidae)
This paper describes the morphohistological features of the testes of adult Ceratophrys ornata (Bell, 1843) (n = 5) from a wetland agroecosystem of central Argentina. The testes were processed by routine histological techniques, sectioned at 8 µm. The sheets obtained were stained with hematoxylin-eosin and Masson trichrome. The gonads are paired, yellowish,
Iheringia, Sér. Zool.. Publicado em: 2013-06
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11. Elevated atmospheric CO2 concentration increases rice blast severity
The predicted atmospheric carbon dioxide concentration's increases are likely to alter plant-pathogen interactions. To assess the effects on rice blast, during three years (2007, 2008 and 2009), three rice cultivars (Agulha Precoce, Shao Tiao Tsao and Caloro) were exposed to elevated CO2 air concentration (approximately 100 - 300 µmol mol-1 higher than ambi
Trop. plant pathol.. Publicado em: 28/05/2013
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12. SUSTENTABILIDADE E AGRICULTURA FAMILIAR EM VITÓRIA DA CONQUISTA-BA. / SUSTAINABILITY AND FAMILY FARM IN VITORIA DA CONQUISTA - BA.
Esta tese analisa a sustentabilidade da agricultura familiar no município Vitória da Conquista. O estudo foi realizado com base na análise integrada que compreende as características fisicoambientais, econômicas, sociais e culturais como suportes fundamentais para discutir a sustentabilidade. Buscou-se, ainda, compreender o papel das políticas publicas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2012