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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
20/12/2017 |
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Data da última atualização: |
20/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VARGAS, L. A.; PASSOS, A. M. A.; MARCILIO, V. A.; BRUGNERA, F. A.; LEITE, V. P. D.; COSTA, R. S. C. |
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Afiliação: |
Lidiane A. Vargas, Universidade Federal de Rondônia; ALEXANDRE MARTINS ABDAO DOS PASSOS, CNPMS; Veronice A. Marcílio, FIMCA; Francis A. Brugnera, FIMCA; Vivianni P. D. Leite, Universidade Federal de Rondônia; ROGERIO SEBASTIAO CORREA DA COSTA, CPAF-Rondonia. |
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Título: |
Soil seed bank phytosociology in no-tillage systems in the Southwestern Amazon Region. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
American Journal of Plant Sciences, v. 8, p. 3399-3413, 2017. |
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DOI: |
10.4236/ajps.2017.813228 |
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Idioma: |
Inglês |
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Conteúdo: |
Understanding the ecological dynamics of weed populations in no-tillage systems is important to establish strategies for integrated weed control capable of increasing agroecosystem sustainability. This study sought to evaluate the effect of succession systems on the seed bank in a no-tillage system. The effects of fifteen succession systems, composed of seven grasses, seven Leguminosae , and a fallow condition, were evaluated on the seed bank at two soil depths (0 to 10 and 10 to 20 cm). The species found in the seed bank were quantified and identified by species and family. The precision of sampling, density, dominance, the indices of diversity of Simpson and Shannon-Weiner; index of sustainability; analysis of groupings of dissimilarities; and the value of importance of each species were calculated. High weed diversity was observed; 29 species were counted, including members of 12 different families. The highest expression of weeds was observed at soil depths of 0 to 10 cm. The Simpson and Shannon-Weiner coefficients indicated high diversity in both systems of succession. The index of sustainability did not indicate significant alterations in the different systems of succession. The coefficients of confenetic correlation were 0.74% and 0.82% for the 0 - 10 and the 10 - 20 cm soil depths respectively. It is concluded that there is a high diversity of weeds in the agroecosystems of Amazonia, and different cover crops promote modifications in the community and expression of the weeds? seed bank. MenosUnderstanding the ecological dynamics of weed populations in no-tillage systems is important to establish strategies for integrated weed control capable of increasing agroecosystem sustainability. This study sought to evaluate the effect of succession systems on the seed bank in a no-tillage system. The effects of fifteen succession systems, composed of seven grasses, seven Leguminosae , and a fallow condition, were evaluated on the seed bank at two soil depths (0 to 10 and 10 to 20 cm). The species found in the seed bank were quantified and identified by species and family. The precision of sampling, density, dominance, the indices of diversity of Simpson and Shannon-Weiner; index of sustainability; analysis of groupings of dissimilarities; and the value of importance of each species were calculated. High weed diversity was observed; 29 species were counted, including members of 12 different families. The highest expression of weeds was observed at soil depths of 0 to 10 cm. The Simpson and Shannon-Weiner coefficients indicated high diversity in both systems of succession. The index of sustainability did not indicate significant alterations in the different systems of succession. The coefficients of confenetic correlation were 0.74% and 0.82% for the 0 - 10 and the 10 - 20 cm soil depths respectively. It is concluded that there is a high diversity of weeds in the agroecosystems of Amazonia, and different cover crops promote modifications in the community and expression of t... Mostrar Tudo |
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Palavras-Chave: |
Fitossociologia; Sorghum sudanense. |
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Thesagro: |
Plantio direto. |
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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/169382/1/Soil-seed.pdf
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Marc: |
LEADER 02217naa a2200229 a 4500
001 2083035
005 2017-12-20
008 2017 bl uuuu u00u1 u #d
024 7 $a10.4236/ajps.2017.813228$2DOI
100 1 $aVARGAS, L. A.
245 $aSoil seed bank phytosociology in no-tillage systems in the Southwestern Amazon Region.$h[electronic resource]
260 $c2017
520 $aUnderstanding the ecological dynamics of weed populations in no-tillage systems is important to establish strategies for integrated weed control capable of increasing agroecosystem sustainability. This study sought to evaluate the effect of succession systems on the seed bank in a no-tillage system. The effects of fifteen succession systems, composed of seven grasses, seven Leguminosae , and a fallow condition, were evaluated on the seed bank at two soil depths (0 to 10 and 10 to 20 cm). The species found in the seed bank were quantified and identified by species and family. The precision of sampling, density, dominance, the indices of diversity of Simpson and Shannon-Weiner; index of sustainability; analysis of groupings of dissimilarities; and the value of importance of each species were calculated. High weed diversity was observed; 29 species were counted, including members of 12 different families. The highest expression of weeds was observed at soil depths of 0 to 10 cm. The Simpson and Shannon-Weiner coefficients indicated high diversity in both systems of succession. The index of sustainability did not indicate significant alterations in the different systems of succession. The coefficients of confenetic correlation were 0.74% and 0.82% for the 0 - 10 and the 10 - 20 cm soil depths respectively. It is concluded that there is a high diversity of weeds in the agroecosystems of Amazonia, and different cover crops promote modifications in the community and expression of the weeds? seed bank.
650 $aPlantio direto
653 $aFitossociologia
653 $aSorghum sudanense
700 1 $aPASSOS, A. M. A.
700 1 $aMARCILIO, V. A.
700 1 $aBRUGNERA, F. A.
700 1 $aLEITE, V. P. D.
700 1 $aCOSTA, R. S. C.
773 $tAmerican Journal of Plant Sciences$gv. 8, p. 3399-3413, 2017.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Classificação |
Cutter |
Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
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Data corrente: |
22/02/2023 |
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Data da última atualização: |
22/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
GALEANO, E. S. J.; FERNANDES, T.; ORRICO JUNIOR, M. A. P.; ALVES, J. P.; RETORE, M.; ORRICO, A. C. A.; MACHADO, L. A. Z.; Eduardo Festozo Vicente; CECCON, G. |
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Afiliação: |
EDGAR SALVADOR JARA GALEANO, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS; TATIANE FERNANDES, ZOOTECNISTA, UNIVERSIDADE DE LISBOA, LISBOA; MARCO ANTÔNIO PREVIDELLI ORRICO JUNIOR, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS; JOYCE PEREIRA ALVES, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS; MARCIANA RETORE, CPAO; ANA CAROLINA AMORIM ORRICO, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS; LUIS ARMANDO ZAGO MACHADO, CPAO; VICENTE, E. F., Faculdade de Ciências e Engenharia, Universidade Estadual Paulista, Tupã, SP; GESSI CECCON, CPAO. |
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Título: |
Tamani grass-legume intercropping can improve productivity and composition of fodder destined to haylage or hay. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Ciência Rural, Santa Maria, v. 52, n. 9, e20210482, 2022. |
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DOI: |
10.1590/0103-8478cr20210482 |
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Idioma: |
Inglês |
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Conteúdo: |
This research evaluated the biomass productivity and nutritional value of the haylage and hay from intercropping between Tamani grass and different legume species. For the productive characteristics of the different intercrops, we adopted a randomized block design, for evaluation of the combination of intercropping and conservation technic we used 5 x 2 factorial scheme (five intercrops and two types of conservation techniques). The treatments were Tamani grass as monoculture, and the intercrops of Tamani grass with crotalaria, soybean, cowpea, or pigeon pea. The conservation techniques were haylage (520 g/kg of DM) and hay (870 g/kg of DM). Plants were sown in alternate rows, with 45 cm of spacing between the rows. The parameters evaluated were grass and legume biomass production, canopy height, and haylage and hay chemical composition, and in vitro dry matter digestibility (ivDMD). There were no differences in the total biomass production between the intercrops and TA grass monoculture. The treatments intercropped with cowpea and soybean had the highest legume participation in the mixture, promoting an increase in crude protein and ivDMD content of haylage and hay. Haylage and hay had the same chemical composition, although haylage had higher ivDMD than hay. We concluded that intercropping Tamani grass with soybeans or cowpea maintained total biomass productivity and improved the nutritional value of haylage and hay |
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Thesagro: |
Biomassa; Feno. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1151867/1/Ciencia.pdf
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Marc: |
LEADER 02217naa a2200253 a 4500
001 2151867
005 2023-02-22
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1590/0103-8478cr20210482$2DOI
100 1 $aGALEANO, E. S. J.
245 $aTamani grass-legume intercropping can improve productivity and composition of fodder destined to haylage or hay.$h[electronic resource]
260 $c2022
520 $aThis research evaluated the biomass productivity and nutritional value of the haylage and hay from intercropping between Tamani grass and different legume species. For the productive characteristics of the different intercrops, we adopted a randomized block design, for evaluation of the combination of intercropping and conservation technic we used 5 x 2 factorial scheme (five intercrops and two types of conservation techniques). The treatments were Tamani grass as monoculture, and the intercrops of Tamani grass with crotalaria, soybean, cowpea, or pigeon pea. The conservation techniques were haylage (520 g/kg of DM) and hay (870 g/kg of DM). Plants were sown in alternate rows, with 45 cm of spacing between the rows. The parameters evaluated were grass and legume biomass production, canopy height, and haylage and hay chemical composition, and in vitro dry matter digestibility (ivDMD). There were no differences in the total biomass production between the intercrops and TA grass monoculture. The treatments intercropped with cowpea and soybean had the highest legume participation in the mixture, promoting an increase in crude protein and ivDMD content of haylage and hay. Haylage and hay had the same chemical composition, although haylage had higher ivDMD than hay. We concluded that intercropping Tamani grass with soybeans or cowpea maintained total biomass productivity and improved the nutritional value of haylage and hay
650 $aBiomassa
650 $aFeno
700 1 $aFERNANDES, T.
700 1 $aORRICO JUNIOR, M. A. P.
700 1 $aALVES, J. P.
700 1 $aRETORE, M.
700 1 $aORRICO, A. C. A.
700 1 $aMACHADO, L. A. Z.
700 1 $aEduardo Festozo Vicente
700 1 $aCECCON, G.
773 $tCiência Rural, Santa Maria$gv. 52, n. 9, e20210482, 2022.
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Registro original: |
Embrapa Agropecuária Oeste (CPAO) |
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