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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
26/01/2016 |
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Data da última atualização: |
17/05/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MAY, A.; SOUZA, V. F. de; GRAVINA, G. de A.; FERNANDES, P. G. |
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Afiliação: |
ANDRE MAY, CNPMS; VANDER FILLIPE DE SOUZA, Bolsista; GERALDO DE AMARAL GRAVINA, Bolsista; PEDRO GONÇALVES FERNANDES, Petrobrás. |
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Título: |
Plant population and row spacing on biomass sorghum yield performance. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Ciência Rural, Santa Maria, v. 46, n. 3, p. 434-439, mar. 2016. |
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DOI: |
http://dx.doi.org/10.1590/0103-8478cr20141133 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - Biomass sorghum is one of the most promising crops for the production of electricity through the burning in high-pressure boilers, due to its high calorific value, high yield, seed propagation, short cycle, and to the possibility of full mechanization of its agricultural processes. However, there is still a lack of information about its cultural practices. To this end, this research aimed to evaluate the influence of row spacing and plant population on the yield performance of biomass sorghum. The experimental design was a randomized block, in factorial scheme of 4 x 4, with four row spacings (0.5, 0.7, 0.9 and 1.1m), and four plant populations (80,000; 100,000; 120,000 and 140,000 plants ha-1), with three replications. The characteristics evaluated were: plant height, stem diameter, number of leaves, number of tillers per plant, fresh weight per plant and biomass. Total biomass yield was greatly influenced by the row spacing, showing a sharp reduction when row spacing increased, in the two years of study, changing from 180.27 to 114.42t ha-1 in the 2012/13 crop year, and from 146.50 to 102.56t ha-1 in the 2013/14 crop year, for 0.5 and 1.1m between rows, respectively. The lowest yields observed in the second year of the study were due to unfavorable weather conditions in the period. RESUMO - O sorgo biomassa é uma das culturas mais promissoras para a produção de energia elétrica, através da queima da planta inteira em caldeiras de alta pressão, devido ao seu alto poder calorífico, alta produtividade, propagação por sementes, ciclo curto e por possibilitar mecanização completa de seus processos agrícolas. Contudo, ainda há uma carência de informações acerca do seu manejo cultural. Para tanto, esta pesquisa objetivou avaliar a influência do espaçamento entrelinhas e da população de plantas no desempenho produtivo do sorgo biomassa. Os experimentos foram instalados em Sete Lagoas/MG, na Embrapa Milho e Sorgo, durante duas safras consecutivas. O delineamento experimental utilizado foi em blocos ao acaso, em esquema fatorial 4 x 4, sendo 4 espaçamentos entrelinhas (0,5; 0,7; 0,9 e 1,1m) e 4 populações de plantas (80.000; 100.000; 120.000 e 140.000 plantas ha-1) e utilizadas três repetições. As características avaliadas foram: altura da planta, diâmetro do colmo, número de folhas, número de perfilhos por planta, massa fresca por planta e biomassa total por área cultivada. A produtividade de biomassa total foi influenciada pelo espaçamento entrelinhas, apresentando uma forte redução com o aumento do espaçamento entrelinhas para os dois anos de estudos, passando de 180,27 para 114,42t ha-1, na safra 2012/13, e de 146,50 para 102,56t ha-1, na safra 2013/14, para espaçamentos entrelinhas de 0,5 e 1,1m, respectivamente. As menores produtividades observadas no segundo ano de estudo foram devido às condições climáticas desfavoráveis no período. MenosABSTRACT - Biomass sorghum is one of the most promising crops for the production of electricity through the burning in high-pressure boilers, due to its high calorific value, high yield, seed propagation, short cycle, and to the possibility of full mechanization of its agricultural processes. However, there is still a lack of information about its cultural practices. To this end, this research aimed to evaluate the influence of row spacing and plant population on the yield performance of biomass sorghum. The experimental design was a randomized block, in factorial scheme of 4 x 4, with four row spacings (0.5, 0.7, 0.9 and 1.1m), and four plant populations (80,000; 100,000; 120,000 and 140,000 plants ha-1), with three replications. The characteristics evaluated were: plant height, stem diameter, number of leaves, number of tillers per plant, fresh weight per plant and biomass. Total biomass yield was greatly influenced by the row spacing, showing a sharp reduction when row spacing increased, in the two years of study, changing from 180.27 to 114.42t ha-1 in the 2012/13 crop year, and from 146.50 to 102.56t ha-1 in the 2013/14 crop year, for 0.5 and 1.1m between rows, respectively. The lowest yields observed in the second year of the study were due to unfavorable weather conditions in the period. RESUMO - O sorgo biomassa é uma das culturas mais promissoras para a produção de energia elétrica, através da queima da planta inteira em caldeiras de alta pressão, devido ao seu alto... Mostrar Tudo |
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Palavras-Chave: |
Arranjo de planta; Densidade; Manejo cultural; Sorgo lignocelulósico. |
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Thesagro: |
Bioenergia. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/137750/1/Plant-population.pdf
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Marc: |
LEADER 03636naa a2200229 a 4500
001 2035103
005 2017-05-17
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/0103-8478cr20141133$2DOI
100 1 $aMAY, A.
245 $aPlant population and row spacing on biomass sorghum yield performance.$h[electronic resource]
260 $c2016
520 $aABSTRACT - Biomass sorghum is one of the most promising crops for the production of electricity through the burning in high-pressure boilers, due to its high calorific value, high yield, seed propagation, short cycle, and to the possibility of full mechanization of its agricultural processes. However, there is still a lack of information about its cultural practices. To this end, this research aimed to evaluate the influence of row spacing and plant population on the yield performance of biomass sorghum. The experimental design was a randomized block, in factorial scheme of 4 x 4, with four row spacings (0.5, 0.7, 0.9 and 1.1m), and four plant populations (80,000; 100,000; 120,000 and 140,000 plants ha-1), with three replications. The characteristics evaluated were: plant height, stem diameter, number of leaves, number of tillers per plant, fresh weight per plant and biomass. Total biomass yield was greatly influenced by the row spacing, showing a sharp reduction when row spacing increased, in the two years of study, changing from 180.27 to 114.42t ha-1 in the 2012/13 crop year, and from 146.50 to 102.56t ha-1 in the 2013/14 crop year, for 0.5 and 1.1m between rows, respectively. The lowest yields observed in the second year of the study were due to unfavorable weather conditions in the period. RESUMO - O sorgo biomassa é uma das culturas mais promissoras para a produção de energia elétrica, através da queima da planta inteira em caldeiras de alta pressão, devido ao seu alto poder calorífico, alta produtividade, propagação por sementes, ciclo curto e por possibilitar mecanização completa de seus processos agrícolas. Contudo, ainda há uma carência de informações acerca do seu manejo cultural. Para tanto, esta pesquisa objetivou avaliar a influência do espaçamento entrelinhas e da população de plantas no desempenho produtivo do sorgo biomassa. Os experimentos foram instalados em Sete Lagoas/MG, na Embrapa Milho e Sorgo, durante duas safras consecutivas. O delineamento experimental utilizado foi em blocos ao acaso, em esquema fatorial 4 x 4, sendo 4 espaçamentos entrelinhas (0,5; 0,7; 0,9 e 1,1m) e 4 populações de plantas (80.000; 100.000; 120.000 e 140.000 plantas ha-1) e utilizadas três repetições. As características avaliadas foram: altura da planta, diâmetro do colmo, número de folhas, número de perfilhos por planta, massa fresca por planta e biomassa total por área cultivada. A produtividade de biomassa total foi influenciada pelo espaçamento entrelinhas, apresentando uma forte redução com o aumento do espaçamento entrelinhas para os dois anos de estudos, passando de 180,27 para 114,42t ha-1, na safra 2012/13, e de 146,50 para 102,56t ha-1, na safra 2013/14, para espaçamentos entrelinhas de 0,5 e 1,1m, respectivamente. As menores produtividades observadas no segundo ano de estudo foram devido às condições climáticas desfavoráveis no período.
650 $aBioenergia
653 $aArranjo de planta
653 $aDensidade
653 $aManejo cultural
653 $aSorgo lignocelulósico
700 1 $aSOUZA, V. F. de
700 1 $aGRAVINA, G. de A.
700 1 $aFERNANDES, P. G.
773 $tCiência Rural, Santa Maria$gv. 46, n. 3, p. 434-439, mar. 2016.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
07/05/2021 |
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Data da última atualização: |
07/05/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
HOMEM, B. G. C.; LIMA, I. B. G. de; SPASIANI, P. P.; FERREIRA, I. G.; BODDEY, R. M.; BERNARDES, T. F.; DUBEUX JUNIOR, J. C. B.; CASAGRANDE, D. R. |
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Afiliação: |
BRUNO G. C. HOMEM, UFLA; TALO B. G. DE LIMA, UFLA; PAOLA P. SPASIANI, UFLA; IGOR M. FERREIRA, UFLA; ROBERT MICHAEL BODDEY, CNPAB; THIAGO F. BERNARDES, UFLA; JOSÉ C. B. DUBEUX JUNIOR, UNIVERSITY OF FLORIDA, USA; DANIEL R. CASAGRANDE, UFLA. |
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Título: |
Palisadegrass pastures with or without nitrogen or mixed with forage peanut grazed to a similar target canopy height. 1. Effects on herbage mass, canopy structure and forage nutritive value. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Grass and Forage Science, First published: 06 April 2021. |
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ISSN: |
0142-5242 |
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DOI: |
https://doi.org/10.1111/gfs.12532 |
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Idioma: |
Inglês |
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Conteúdo: |
Nitrogen (N) inputs to pasture systems coupled with grazing management strategies based on monitoring and control of canopy structure may provide conditions for greater productivity and enhanced forage nutritive value. This 2‐year study assessed canopy structure and nutritive value responses of three pasture treatments, namely, (1) mixed Marandu palisadegrass (Brachiaria brizantha [Hochst. ex A. Rich.] R.D. Webster [syn. Urochloa brizantha Stapf]) cv. Marandu and forage peanut (Arachis pintoi Krapov. & W.C. Greg.) cv. BRS Mandobi pastures without N fertilizer (GRASS + LEGUME); (2) monoculture Marandu palisadegrass pastures fertilized with 150 kg N/ha (GRASS + N); and (3) monoculture Marandu palisadegrass without N fertilizer (GRASS). Grazing management was similar across pasture treatments, using continuous stocking and a target canopy height of 20?25 cm. Herbage mass was greater in GRASS + N and GRASS + LEGUME pastures than in GRASS in summer and spring (p = .014). The leaf:stem ratio in the grass mass (p = .731) was similar between treatments. Grass crude protein (CP) and in vitro digestible dry matter (IVDDM) were greatest in the GRASS + N pasture (p < .001). Grass neutral detergent fibre (NDF) concentration was greater at GRASS and GRASS + LEGUME pastures than in GRASS + N (p < .001). Forage peanut had a greater IVDDM and CP concentration and a lower NDF concentration than Marandu palisadegrass. Nitrogen application or the presence of the legume increased green herbage mass and improved forage nutritive value in canopies with similar height. MenosNitrogen (N) inputs to pasture systems coupled with grazing management strategies based on monitoring and control of canopy structure may provide conditions for greater productivity and enhanced forage nutritive value. This 2‐year study assessed canopy structure and nutritive value responses of three pasture treatments, namely, (1) mixed Marandu palisadegrass (Brachiaria brizantha [Hochst. ex A. Rich.] R.D. Webster [syn. Urochloa brizantha Stapf]) cv. Marandu and forage peanut (Arachis pintoi Krapov. & W.C. Greg.) cv. BRS Mandobi pastures without N fertilizer (GRASS + LEGUME); (2) monoculture Marandu palisadegrass pastures fertilized with 150 kg N/ha (GRASS + N); and (3) monoculture Marandu palisadegrass without N fertilizer (GRASS). Grazing management was similar across pasture treatments, using continuous stocking and a target canopy height of 20?25 cm. Herbage mass was greater in GRASS + N and GRASS + LEGUME pastures than in GRASS in summer and spring (p = .014). The leaf:stem ratio in the grass mass (p = .731) was similar between treatments. Grass crude protein (CP) and in vitro digestible dry matter (IVDDM) were greatest in the GRASS + N pasture (p < .001). Grass neutral detergent fibre (NDF) concentration was greater at GRASS and GRASS + LEGUME pastures than in GRASS + N (p < .001). Forage peanut had a greater IVDDM and CP concentration and a lower NDF concentration than Marandu palisadegrass. Nitrogen application or the presence of the legume increased green her... Mostrar Tudo |
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Palavras-Chave: |
Biological nitrogen fixation; Grazing management strategies; Herbage mass. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02513naa a2200265 a 4500
001 2131737
005 2021-05-07
008 2021 bl uuuu u00u1 u #d
022 $a0142-5242
024 7 $ahttps://doi.org/10.1111/gfs.12532$2DOI
100 1 $aHOMEM, B. G. C.
245 $aPalisadegrass pastures with or without nitrogen or mixed with forage peanut grazed to a similar target canopy height. 1. Effects on herbage mass, canopy structure and forage nutritive value.$h[electronic resource]
260 $c2021
520 $aNitrogen (N) inputs to pasture systems coupled with grazing management strategies based on monitoring and control of canopy structure may provide conditions for greater productivity and enhanced forage nutritive value. This 2‐year study assessed canopy structure and nutritive value responses of three pasture treatments, namely, (1) mixed Marandu palisadegrass (Brachiaria brizantha [Hochst. ex A. Rich.] R.D. Webster [syn. Urochloa brizantha Stapf]) cv. Marandu and forage peanut (Arachis pintoi Krapov. & W.C. Greg.) cv. BRS Mandobi pastures without N fertilizer (GRASS + LEGUME); (2) monoculture Marandu palisadegrass pastures fertilized with 150 kg N/ha (GRASS + N); and (3) monoculture Marandu palisadegrass without N fertilizer (GRASS). Grazing management was similar across pasture treatments, using continuous stocking and a target canopy height of 20?25 cm. Herbage mass was greater in GRASS + N and GRASS + LEGUME pastures than in GRASS in summer and spring (p = .014). The leaf:stem ratio in the grass mass (p = .731) was similar between treatments. Grass crude protein (CP) and in vitro digestible dry matter (IVDDM) were greatest in the GRASS + N pasture (p < .001). Grass neutral detergent fibre (NDF) concentration was greater at GRASS and GRASS + LEGUME pastures than in GRASS + N (p < .001). Forage peanut had a greater IVDDM and CP concentration and a lower NDF concentration than Marandu palisadegrass. Nitrogen application or the presence of the legume increased green herbage mass and improved forage nutritive value in canopies with similar height.
653 $aBiological nitrogen fixation
653 $aGrazing management strategies
653 $aHerbage mass
700 1 $aLIMA, I. B. G. de
700 1 $aSPASIANI, P. P.
700 1 $aFERREIRA, I. G.
700 1 $aBODDEY, R. M.
700 1 $aBERNARDES, T. F.
700 1 $aDUBEUX JUNIOR, J. C. B.
700 1 $aCASAGRANDE, D. R.
773 $tGrass and Forage Science, First published: 06 April 2021.
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