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Oat tillering and tiller traits under different nitrogen levels in an eucalyptus agroforestry system in Subtropical Brazil Ciência Rural
Deiss,Leonardo; Moraes,Anibal de; Pelissari,Adelino; Skora Neto,Francisco; Oliveira,Edilson Batista de; Silva,Vanderley Porfírio da.
In oat production, tillering persistence is the determinant of one important yield component, namely the number of panicles. This process is highly influenced by the inter- and intraspecific interactions of the agroecosystem, which in turn depend on agronomic practices. The hypothesis of this research is that nitrogen does not increase oat tolerance to negative interference from trees, so oat tillering persistence in grain production remains un-modified by nitrogen at distances relative to the eucalyptus tracks, within the alley cropping agroforestry system (ACS). Thus, nitrogen should not be used to increase oat yield potential in these systems. The objective of this study was to determine how the tillering persistence for grain production and oat (Avena...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Avena sativa L.; Eucalyptus dunnii Maiden; Alley cropping system.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000100012
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Oat grain yield under nitrogen uses in an eucalyptus intercropping system in Subtropical Brazil Rev. Ciênc. Agron.
Deiss,Leonardo; Moraes,Anibal de; Pelissari,Adelino; Silva,Vanderley Porfírio da; Andreolla,Veruschka Rocha Medeiros.
ABSTRACT Agronomic practices adequacy plays a key role in the integrated crop-livestock systems development. The objective of this study was to determine how the phytomass accumulation, yield compounds and oat (Avena sativa L. cv. IPR 126) yield were influenced by nitrogen levels (12 and 80 kg N ha-1) at five equidistant positions between two adjacent eucalyptus (Eucalyptus dunnii Maiden) double line tracks [20 m (4 m x 3 m)] in intercropping system (IS) and traditional no-till agriculture (without trees) in subtropical Brazil. The experiment was conducted in a split-block in a randomized block design with four replicates. At the end of the oat cycle, there was compensation for the lower spikelets per panicle number by the greater grain per spikelet...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fertilization; Interspecific competition; Lodging; Small cereal.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000300462
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Research on Integrated Crop-Livestock Systems in Brazil Rev. Ciênc. Agron.
Moraes,Anibal de; Carvalho,Paulo César de Faccio; Lustosa,Sebastião Brasil Campos; Lang,Claudete Reisdorfer; Deiss,Leonardo.
Integrated crop-livestock systems (ICLS) are designed to exploit synergisms and emergent properties resulting from interactions between different soil-plant-animal-atmosphere compartments that integrate themselves at different spatial-temporal scales. In this review, a panorama of the evolution of studies based on ICLS is presented. Specific keywords were used as search terms to construct a database of 450 articles from 93 national and international journals published up to and including 2013. These articles were classified according to the region of origin within Brazil (subtropical or tropical) and categorized regarding the studied components: soil, plant, animal and 'others'. Within these components, groups of variables that could characterize the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Conservation agriculture; Sustainability; Scientific production; Agricultural technology; Systematic approach.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500018
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Oat growth under different nitrogen doses in eucalyptus alley cropping system in subtropical Brazil Rev. Ciênc. Agron.
Deiss,Leonardo; Moraes,Anibal de; Pelissari,Adelino; Skora Neto,Francisco; Silva,Vanderley Porfírio da; Andreolla,Veruschka Rocha Medeiros.
Plant growth analysis was performed to determine how oat (Avena sativa L. cv. IPR 126) cultivated for grain responds to the eucalyptus (Eucalyptus dunnii Maiden) alley cropping system (ACS) in subtropical Brazil. The hypothesis of this work was that oat growth response is not modified by nitrogen at distances relative to 4 year old eucalyptus tracks in the ACS. The objective of this study was to determine how the oat growth was influenced by nitrogen doses (12 and 80 kg N ha-1) at five equidistant positions between two adjacent eucalyptus double line tracks [20 m (4 m x 3 m)] in ACS and traditional no-till farming. The experiment was conducted in a split-block randomized block design with four replicates. It was evaluated the oat relative growth rate, unit...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Avena sativa; Eucalyptus dunnii; Agricultural integrated systems; Growth analysis; Agroforestry.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500017
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Soil physical attributes in integrated bean and sheep system under nitrogen levels Rev. Ciênc. Agron.
Andreolla,Veruschka Rocha Medeiros; Moraes,Aníbal de; Bonini,Andreia Kusumota; Deiss,Leonardo; Sandini,Itacir Eloi.
Integrated crop-livestock systems (ICLS) can promote higher grain and meat/milk yield as well as reduce soil degradation risks. Thus, this study aimed to evaluate the influence of grazing sheep with moderate intensity and nitrogen doses on soil physical attributes, and bean crop yield (Phaseolus vulgaris Lam.) under rotation with summer corn crop (Zea mays Lam.) and winter pasture with oats (Avena sativa Lam) and ryegrass (Lolium multiflorum Lam.) The experimental design was completely randomized blocks with split-plot; the plots were nitrogen doses and the split-plots were grazing presence or absence. The treatments were nitrogen doses of 0, 75, 150 and 225 kg ha-1 applied on ryegrass and white oat pasture in winter followed by bean crop. Soil density,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Integrated crop-livestock system; Soil compaction; Yield.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000500008
Registros recuperados: 5
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