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Registro Completo |
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
06/12/2021 |
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Data da última atualização: |
06/12/2021 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MATOS, B. F. de; ARAÚJO, G. P. de; BEHLING NETO, A.; WRUCK, F. J.; OLIVEIRA JUNIOR, O. L. de; PEDREIRA, B. C. e. |
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Afiliação: |
BETANIA FLORENCIO DE MATOS, UFMT, Sinop-MT; GRAZIELA PAULA DE ARAÚJO, UFMT, Sinop-MT; ARTHUR BEHLING NETO, UFMT, Sinop-MT; FLAVIO JESUS WRUCK, CPAMT; ORLANDO LUCIO DE OLIVEIRA JUNIOR, CPAMT; BRUNO CARNEIRO E PEDREIRA, CPAMT. |
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Título: |
The effect of the harvesting frequency on the residual forage mass in mixed pastures. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 56., 2021, Florianópolis. Animal science: challenges in production and sustainability: proceedings... Brasília, DF: Sociedade Brasileira de Zootecnia, 2021. p. 108. |
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Idioma: |
Inglês |
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Notas: |
Evento virtual. |
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Conteúdo: |
The use of different forage species in a mixed pasture is recommended to improve forage mass and soil characteristics. However, the frequency of harvest (e.g.; grazing or hay) can increase the forage removal during the off-season, and affect the residual forage mass to the following crop, especially in the non-till crop-livestock systems. We aimed to assess the harvest frequency effect in a mixed pasture compounded by Urochloa ruziziensis, pigeon pea (Cajanus cajan ?Super N?); Sunflower (Helianthus annuus), and Buckwheat (Fagopyrum esculentum) on the residual forage mass at the Embrapa Agrossilvipastoril, in Sinop, MT, Brazil. The mixed were planted on March 10, 2020, after the soybean harvest. The experimental design was a randomized complete block design with three replicates. The treatments were four harvest frequencies. The harvesting frequencies were: Straw ? no-harvest during the off-season; Lax - with one harvest (at 115 days after planting); Moderate - two harvests (80 and 115 days after planting); and Heavy - three harvests (45, 80, and 115 days after The plots were harvested at 20-cm stubble height and there were not fertilized. On September 30, 2020, forage mass was harvested using three quadrats (0.5 m2) per plot, at soil level, to calculate residual forage mass, which was desiccated (4 L ha-1 of glyphosate) on October 23, 2020. The soybean (BG4781, Brevant) was seeded on November 07, when 88 kg of P2O5 was applied. On December 01, 68 kg of K surface-applied. The crop management practices (e.g.; herbicide, insecticide, and fungicide) were similar to all plots, and on March 09, 2021, the soybean was harvested (data not showed). The residual forage mass was affected by the harvesting frequency (P=0.0296). The greatest residual forage mass was measured in the treatment where there was no harvesting (straw), on average 5625 kg DM ha-1. On the other hand, lax, moderate and heavy treatments presented similar residual forage mass (on average, 3000 kg DM ha-1). We concluded that although the residual forage mass was reduced when the off-season pastures were harvested, the number of harvest events did not affect the forage mass left on the field to assure the non-till cropping system. It is important to mention the soybean grain yield needs to be measured in the following crop season to understand the effect of the harvesting frequency during the off-season. MenosThe use of different forage species in a mixed pasture is recommended to improve forage mass and soil characteristics. However, the frequency of harvest (e.g.; grazing or hay) can increase the forage removal during the off-season, and affect the residual forage mass to the following crop, especially in the non-till crop-livestock systems. We aimed to assess the harvest frequency effect in a mixed pasture compounded by Urochloa ruziziensis, pigeon pea (Cajanus cajan ?Super N?); Sunflower (Helianthus annuus), and Buckwheat (Fagopyrum esculentum) on the residual forage mass at the Embrapa Agrossilvipastoril, in Sinop, MT, Brazil. The mixed were planted on March 10, 2020, after the soybean harvest. The experimental design was a randomized complete block design with three replicates. The treatments were four harvest frequencies. The harvesting frequencies were: Straw ? no-harvest during the off-season; Lax - with one harvest (at 115 days after planting); Moderate - two harvests (80 and 115 days after planting); and Heavy - three harvests (45, 80, and 115 days after The plots were harvested at 20-cm stubble height and there were not fertilized. On September 30, 2020, forage mass was harvested using three quadrats (0.5 m2) per plot, at soil level, to calculate residual forage mass, which was desiccated (4 L ha-1 of glyphosate) on October 23, 2020. The soybean (BG4781, Brevant) was seeded on November 07, when 88 kg of P2O5 was applied. On December 01, 68 kg of K surface-applied. The... Mostrar Tudo |
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Thesagro: |
Colheita; Forragem; Fungicida; Herbicida; Inseticida; Pastagem Mista. |
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Thesaurus Nal: |
Cropping systems; Helianthus; Livestock; Urochloa ruziziensis. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228583/1/2021-cpamt-bcp-effects-harvesting-frequency-residual-forage-mass-mixed-pasture.pdf
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Marc: |
LEADER 03432nam a2200301 a 4500
001 2137189
005 2021-12-06
008 2021 bl uuuu u00u1 u #d
100 1 $aMATOS, B. F. de
245 $aThe effect of the harvesting frequency on the residual forage mass in mixed pastures.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 56., 2021, Florianópolis. Animal science: challenges in production and sustainability: proceedings... Brasília, DF: Sociedade Brasileira de Zootecnia, 2021. p. 108.$c2021
500 $aEvento virtual.
520 $aThe use of different forage species in a mixed pasture is recommended to improve forage mass and soil characteristics. However, the frequency of harvest (e.g.; grazing or hay) can increase the forage removal during the off-season, and affect the residual forage mass to the following crop, especially in the non-till crop-livestock systems. We aimed to assess the harvest frequency effect in a mixed pasture compounded by Urochloa ruziziensis, pigeon pea (Cajanus cajan ?Super N?); Sunflower (Helianthus annuus), and Buckwheat (Fagopyrum esculentum) on the residual forage mass at the Embrapa Agrossilvipastoril, in Sinop, MT, Brazil. The mixed were planted on March 10, 2020, after the soybean harvest. The experimental design was a randomized complete block design with three replicates. The treatments were four harvest frequencies. The harvesting frequencies were: Straw ? no-harvest during the off-season; Lax - with one harvest (at 115 days after planting); Moderate - two harvests (80 and 115 days after planting); and Heavy - three harvests (45, 80, and 115 days after The plots were harvested at 20-cm stubble height and there were not fertilized. On September 30, 2020, forage mass was harvested using three quadrats (0.5 m2) per plot, at soil level, to calculate residual forage mass, which was desiccated (4 L ha-1 of glyphosate) on October 23, 2020. The soybean (BG4781, Brevant) was seeded on November 07, when 88 kg of P2O5 was applied. On December 01, 68 kg of K surface-applied. The crop management practices (e.g.; herbicide, insecticide, and fungicide) were similar to all plots, and on March 09, 2021, the soybean was harvested (data not showed). The residual forage mass was affected by the harvesting frequency (P=0.0296). The greatest residual forage mass was measured in the treatment where there was no harvesting (straw), on average 5625 kg DM ha-1. On the other hand, lax, moderate and heavy treatments presented similar residual forage mass (on average, 3000 kg DM ha-1). We concluded that although the residual forage mass was reduced when the off-season pastures were harvested, the number of harvest events did not affect the forage mass left on the field to assure the non-till cropping system. It is important to mention the soybean grain yield needs to be measured in the following crop season to understand the effect of the harvesting frequency during the off-season.
650 $aCropping systems
650 $aHelianthus
650 $aLivestock
650 $aUrochloa ruziziensis
650 $aColheita
650 $aForragem
650 $aFungicida
650 $aHerbicida
650 $aInseticida
650 $aPastagem Mista
700 1 $aARAÚJO, G. P. de
700 1 $aBEHLING NETO, A.
700 1 $aWRUCK, F. J.
700 1 $aOLIVEIRA JUNIOR, O. L. de
700 1 $aPEDREIRA, B. C. e
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Registro original: |
Embrapa Agrossilvipastoril (CPAMT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/07/2014 |
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Data da última atualização: |
01/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
MOREIRA, J. P.; SHIMIZU, J. Y.; SOUSA, V. A. de; MORAES, M. L. T.; MOURA, N. F.; AGUIAR, A. V. de. |
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Afiliação: |
Juliana Prado Moreira, Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Engenharia de Ilha Solteira, Ilha Solteira, SP, Brasil.; Jarbas Yukio Shimizu, Consultor externo; VALDERES APARECIDA DE SOUSA, CNPF; Mario Luis Teixeira Moraes, Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Engenharia de Ilha Solteira, Ilha Solteira, SP, Brasil.; Nara Fernandes Moura, Universidade Federal de Goiás; ANANDA VIRGINIA DE AGUIAR, CNPF. |
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Título: |
Ganho esperado na seleção de progênies de Pinus elliottii var. elliottii em idade precoce para produção de madeira. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Pesquisa Florestal Brasileira, Colombo, v. 34, n. 78, p. 99-109, abr./jun. 2014. |
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Idioma: |
Português |
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Conteúdo: |
Pinus elliotti var. elliottii é a segunda espécie mais utilizada em reflorestamentos nas regiões subtropicais do Brasil, devida a sua boa performance na produção de madeira e resina. Assim, o objetivo do presente trabalho foi estimar os parâmetros genéticos e predizer os ganhos genéticos possíveis mediante seleções em idade precoce em progênies de P. elliottii para a produção de madeira. O experimento foi estabelecido no delineamento em blocos completos casualizados, com 76 tratamentos (75 progênies de um pomar de sementes clonal e um controle de plantio comercial), no espaçamento de 3 m x 3 m. A altura total foi avaliada no primeiro, segundo e terceiro anos após o plantio e o diâmetro a 1,30 m do solo (DAP) somente no terceiro ano após o plantio. O volume individual de madeira e o incremento médio anual foram calculados com base nesses caracteres. As análises de deviance e as estimativas dos parâmetros genéticos foram realizadas com o programa Selegen-REML/BLUP. Variação genética significativa foi detectada entre progênies. As herdabilidades individuais no sentido restrito foram de 0,25 e 0,42 em DAP e altura, respectivamente. Conclui-se que a variação genética é suficientemente alta para possibilitar ganhos genéticos mediante seleção dos indivíduos e progênies mais produtivos, visando à composição de pomares de sementes e plantios comerciais, tendo sido observado genótipos mais produtivos do que o plantio comercial. |
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Palavras-Chave: |
Correlações; Diversidade genética; Ganho de seleção; Genetic diversity; Melhoramento genético; REML/BLUP. |
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Thesaurus NAL: |
genetic improvement; heritability; repeatability. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122881/1/Ganho.pdf
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Marc: |
LEADER 02384naa a2200289 a 4500
001 1990861
005 2016-03-01
008 2014 bl uuuu u00u1 u #d
100 1 $aMOREIRA, J. P.
245 $aGanho esperado na seleção de progênies de Pinus elliottii var. elliottii em idade precoce para produção de madeira.$h[electronic resource]
260 $c2014
520 $aPinus elliotti var. elliottii é a segunda espécie mais utilizada em reflorestamentos nas regiões subtropicais do Brasil, devida a sua boa performance na produção de madeira e resina. Assim, o objetivo do presente trabalho foi estimar os parâmetros genéticos e predizer os ganhos genéticos possíveis mediante seleções em idade precoce em progênies de P. elliottii para a produção de madeira. O experimento foi estabelecido no delineamento em blocos completos casualizados, com 76 tratamentos (75 progênies de um pomar de sementes clonal e um controle de plantio comercial), no espaçamento de 3 m x 3 m. A altura total foi avaliada no primeiro, segundo e terceiro anos após o plantio e o diâmetro a 1,30 m do solo (DAP) somente no terceiro ano após o plantio. O volume individual de madeira e o incremento médio anual foram calculados com base nesses caracteres. As análises de deviance e as estimativas dos parâmetros genéticos foram realizadas com o programa Selegen-REML/BLUP. Variação genética significativa foi detectada entre progênies. As herdabilidades individuais no sentido restrito foram de 0,25 e 0,42 em DAP e altura, respectivamente. Conclui-se que a variação genética é suficientemente alta para possibilitar ganhos genéticos mediante seleção dos indivíduos e progênies mais produtivos, visando à composição de pomares de sementes e plantios comerciais, tendo sido observado genótipos mais produtivos do que o plantio comercial.
650 $agenetic improvement
650 $aheritability
650 $arepeatability
653 $aCorrelações
653 $aDiversidade genética
653 $aGanho de seleção
653 $aGenetic diversity
653 $aMelhoramento genético
653 $aREML/BLUP
700 1 $aSHIMIZU, J. Y.
700 1 $aSOUSA, V. A. de
700 1 $aMORAES, M. L. T.
700 1 $aMOURA, N. F.
700 1 $aAGUIAR, A. V. de
773 $tPesquisa Florestal Brasileira, Colombo$gv. 34, n. 78, p. 99-109, abr./jun. 2014.
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Embrapa Florestas (CNPF) |
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