Pastures Dynamics
Mostrando 13-24 de 41 artigos, teses e dissertações.
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13. Dynamics of sward condition and botanical composition in mixed pastures of marandugrass, forage peanut and tropical kudzu
This study was carried out to evaluate the dynamics of sward condition and botanical composition of a mixed pasture of marandugrass (Brachiaria brizantha cv. Marandu), forage peanut (Arachis pintoi cv. Mandobi) and tropical kudzu (Pueraria phaseoloides), rotationally stocked at four daily forage allowance levels (6.6, 10.3, 14.3 and 17.9% of live weight). Sw
Revista Brasileira de Zootecnia. Publicado em: 2012-03
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14. Tillering dynamics in pastures of guinea grass subjected to grazing severities under intermittent stocking
This experiment was carried out to analyze the tillering dynamics of the species Panicum maximum cv. Mombaca subjected to three post-grazing heights: residue of 30 cm (30); residue of 50 cm (50); and residue of 50 cm during spring and summer, lowered to 40 cm in the first fall season grazing and to 30 cm in the following grazing cycle, resuming to 50 cm afte
Revista Brasileira de Zootecnia. Publicado em: 2012-03
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15. COMPORTAMENTO INGESTIVO E PRODUTIVIDADE DE VACAS DAS RAÇAS JERSEY E HOLANDESA EM PASTAGENS DE AZEVÉM ANUAL / INGESTIVE BEHAVIOUR AND PRODUCTIVITY OF COWS OF JERSEY AND HOLSTEINS BREEDS IN ANNUAL RYEGRASS PASTURES
Foram estudados o comportamento ingestivo, a dinâmica das pastagens e a produtividade de vacas das raças Jersey e Holandesa em pastagens de azevém anual (Lolium multiflorum) no noroeste do Rio Grande do Sul. O experimento foi conduzido de 29/04/2010 a 29/10/2010, sendo utilizadas, no total, onze vacas-testes de cada grupo racial e um número variável de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/12/2011
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16. Radarsat backscattering from an agricultural scene.
Orbital remote sensing in the microwave electromagnetic region has been presented as an important tool for agriculture monitoring. The satellite systems in operation have almost all-weather capability and high spatial resolution, which are features appropriated for agriculture. However, for full exploration of these data, an understanding of the relationship
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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17. Decomposition of Arachis pintoi and Hyparrhenia rufa litters in monoculture and intercropped systems under lowland soil.
Tropical grasslands under lowland soils are generally underutilized and the litter of forage legumes may be used to recover these degraded pastures. The objective of this work was to study the dynamics of litter decomposition of Arachis pintoi (pinto peanut), Hyparrhenia rufa (thatching grass) and a mixture of both species in a lowland soil. These treatments
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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18. Program, abstracts and related documents.
The context: Soil biodiversity and sustainable agriculture; Abstracts - Theme 1: Monitoring and assessment: Bioindicators of soil health: assessment and monitoring for sustainable agriculture; Practical tools to measure soil health and their use by farmers; Biological soil quality from biomass to biodiversity - importance and resilience to management stress
Londrina: Embrapa Soybean: FAO. Publicado em: 2011
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19. Atividade e diversidade catabólica da biomassa microbiana do solo alterada pelo uso da terra / Effects of soil land use on microbial activity and catabolic diversity
The increasing demand for food creates environmental problems, mainly due to the removal of native vegetation cover for agriculture expansion in Brazil. These changes in land use leads to changes in the soil organic matter dynamics. The vegetation type also affects the soil biota and, therefore, its change causes modifications in the microbial biomass, as sh
Publicado em: 2010
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20. Dinâmica do carbono e fluxo de gases do efeito estufa em sistemas de integração lavoura-pecuária na Amazônia e no Cerrado / Carbon dynamics and greenhouse gas fluxes in integrated crop-livestock systems in Amazonia and Cerrado
Changes on land use and management influence the accumulation of carbon (C) in soil and the greenhouse gas (GHG) fluxes. In Brazil, especially in Amazonia and Cerrados biomes, the native vegetation has been historically converted in pastures and agriculture causing considerable amount of GHG emissions to the atmosphere. Recently, pastures and agricultural ac
Publicado em: 2010
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21. A REORGANIZAÇÃO DO ESPAÇO AGRÁRIO DE JÚLIO DE CASTILHOS/RS: UMA NOVA DINÂMICA ATRAVÉS DA LAVOURA EMPRESARIAL DA SOJA / THE AGRARIAN SPACE REORGANIZATION IN JÚLIO DE CASTILHOS/RS: A NEW DYNAMICS THROUGH THE MANAGERIAL SOY FARMING
The insertion of capital makes the territorial units organize and/or reorganize, as it happens in an unequal way in the space according to the demand of the market, considering the local, regional, national and international scales. Consequently, according to the technical degree and the presence of new economical factors, we get the spatial dynamics. At the
Publicado em: 2009
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22. Variabilidade espacial e dinâmica do acúmulo de forragem em pastos de capim-braquiária sob lotação contínua / Spatial variability, morphogenesis and dynamics of the tillering and forage accumulation in signalgrass pastures
Foram conduzidos dois experimentos em pastagem de Brachiaria decumbens cv. Basilisk (capim-braquiária) pertencente ao Setor de Forragicultura do Departamento de Zootecnia, na Universidade Federal de Viçosa, sendo o primeiro realizado entre novembro de 2007 a maio de 2008, com o objetivo de quantificar a variabilidade espacial de pastos de capim-braquiária
Publicado em: 2009
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23. Dinâmica de uso das terras nos municípios de Bonito, Jardim e Bodoquena (MS) e o estado e conservação dos recursos biológicos do Parque Nacional da Serra da Bodoquena e de sua zona de amortecimento / Spatial and temporal dynamics of land use in Bonito, Jardim and Bodoquena (MS) Municipalities, and the conservation state of the biological resources in the Serra da Bodoquena National Park buffer zone
The research approached the process of use and occupation of lands in the cities of Bonito, Bodoquena and Jardim, situated in the edge east of the National Park of the Serra da Bodoquena (NPSB), southwestern region of Mato Grosso do Sul, Brazil. Moreover, the conservation state was studied, in terms of structure and configuration of the landscape, of the con
Publicado em: 2008
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24. Estabelecimento de pastagens de tifton 85 sob doses de adubação nitrogenada. / Establishment of pastures of tifton 85 under levels of nitrogen fertilization.
This work was carried out in order to obtain subsidies under the definition of strategies for nitrogen fertilization of pastures of tifton 85, based on monitoring the dynamics changes in the structure of swards. The underlying assumption was that the application of increasing levels of N is a powerful tool for that purpose. The experiment was developed over
Publicado em: 2008