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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
16/03/2012 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
RAMOS, N. P.; PACKER, A. P.; VIEIRA, H. B.; MORICONI, W.; ASSIS, M. C. de; ROSSETTO, R. |
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Afiliação: |
NILZA PATRICIA RAMOS, CNPMA; ANA PAULA CONTADOR PACKER, CNPMA; HENRIQUE BARROS VIEIRA, CNPMA; WALDEMORE MORICONI, CNPMA; MARTA CAMARGO DE ASSIS, CNPMA; RAFFAELLA ROSSETTO, APTA. |
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Título: |
Weed population under different amounts of sugarcane straw in São Paulo State, Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: INTERNATIONAL SUGAR CONFERENCE, 4., 2011. Nova Delhi. Balancing sugar and energy production in developing countries: sustainable technologies and marketing strategies. Proceedings... Nova Delhi: IAPSIT, 2011. p. 127-129. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Maintenance of the straws on the soil surface has been proved essential for environrnental quality of the sugarcane productive system in Brazil. However, this practice requires changes in the current management systems used around the country. This requires the use of tolerant varieties to the presence of straw residue on the soil surface, improvement in fertilization process, and also pest, disease and weeds control. In this context, this study aimed to evaluate the incidence of weed populations in the sugarcane cultivation under different levels of straw, in order to support possible changes in the management of these plants. Treatments were based on five levels of straw left on the soil surface at harvest, as follows: 0% - 25% - 50% - 75% - 100%, arranged in a randomized block design with four replications. The weeds evaluation was performed using the square method randomly thrown on the floor throughout the experiment area, reaching a total of ten samples per plot. This method was used to determine the density (plants/m2) and absolute frequency (%) of the predominant species individuais in three assessments (34, 106 and 177 days after harvesting). It was observed the predominance of the species Cyperus rotundus L. and Cynodon dactylon L. Pers. independently of treatments applied. At 34 days after harvest Cyperus rotundus was the more frequent weed in the treatments with low and no straw respectively, however with 106 pos-harvests the presence of higher levels of straw (75% and 100%) privileged the growth of this species. Results shown that there was a tendency to increase the number of Cyperus rotundus individuais per area with the development sugarcane cycle, due to the increase in the layer of straw left on the soil. MenosAbstract: Maintenance of the straws on the soil surface has been proved essential for environrnental quality of the sugarcane productive system in Brazil. However, this practice requires changes in the current management systems used around the country. This requires the use of tolerant varieties to the presence of straw residue on the soil surface, improvement in fertilization process, and also pest, disease and weeds control. In this context, this study aimed to evaluate the incidence of weed populations in the sugarcane cultivation under different levels of straw, in order to support possible changes in the management of these plants. Treatments were based on five levels of straw left on the soil surface at harvest, as follows: 0% - 25% - 50% - 75% - 100%, arranged in a randomized block design with four replications. The weeds evaluation was performed using the square method randomly thrown on the floor throughout the experiment area, reaching a total of ten samples per plot. This method was used to determine the density (plants/m2) and absolute frequency (%) of the predominant species individuais in three assessments (34, 106 and 177 days after harvesting). It was observed the predominance of the species Cyperus rotundus L. and Cynodon dactylon L. Pers. independently of treatments applied. At 34 days after harvest Cyperus rotundus was the more frequent weed in the treatments with low and no straw respectively, however with 106 pos-harvests the presence of higher levels o... Mostrar Tudo |
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Palavras-Chave: |
Agricultural residue; Cana-de-açúcar; Sugarcane straw. |
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Thesagro: |
Palha; Praga de planta. |
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Thesaurus Nal: |
Soil conservation; Straw; Sugarcane; weeds. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55898/1/2011AA77.pdf
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Marc: |
LEADER 02714nam a2200277 a 4500
001 1919152
005 2019-10-30
008 2011 bl uuuu u00u1 u #d
100 1 $aRAMOS, N. P.
245 $aWeed population under different amounts of sugarcane straw in São Paulo State, Brazil.$h[electronic resource]
260 $aIn: INTERNATIONAL SUGAR CONFERENCE, 4., 2011. Nova Delhi. Balancing sugar and energy production in developing countries: sustainable technologies and marketing strategies. Proceedings... Nova Delhi: IAPSIT, 2011. p. 127-129.$c2011
520 $aAbstract: Maintenance of the straws on the soil surface has been proved essential for environrnental quality of the sugarcane productive system in Brazil. However, this practice requires changes in the current management systems used around the country. This requires the use of tolerant varieties to the presence of straw residue on the soil surface, improvement in fertilization process, and also pest, disease and weeds control. In this context, this study aimed to evaluate the incidence of weed populations in the sugarcane cultivation under different levels of straw, in order to support possible changes in the management of these plants. Treatments were based on five levels of straw left on the soil surface at harvest, as follows: 0% - 25% - 50% - 75% - 100%, arranged in a randomized block design with four replications. The weeds evaluation was performed using the square method randomly thrown on the floor throughout the experiment area, reaching a total of ten samples per plot. This method was used to determine the density (plants/m2) and absolute frequency (%) of the predominant species individuais in three assessments (34, 106 and 177 days after harvesting). It was observed the predominance of the species Cyperus rotundus L. and Cynodon dactylon L. Pers. independently of treatments applied. At 34 days after harvest Cyperus rotundus was the more frequent weed in the treatments with low and no straw respectively, however with 106 pos-harvests the presence of higher levels of straw (75% and 100%) privileged the growth of this species. Results shown that there was a tendency to increase the number of Cyperus rotundus individuais per area with the development sugarcane cycle, due to the increase in the layer of straw left on the soil.
650 $aSoil conservation
650 $aStraw
650 $aSugarcane
650 $aweeds
650 $aPalha
650 $aPraga de planta
653 $aAgricultural residue
653 $aCana-de-açúcar
653 $aSugarcane straw
700 1 $aPACKER, A. P.
700 1 $aVIEIRA, H. B.
700 1 $aMORICONI, W.
700 1 $aASSIS, M. C. de
700 1 $aROSSETTO, R.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
23/03/2001 |
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Data da última atualização: |
23/07/2013 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
HAUER, M.; WISNIEWSKI, C.; MEDRADO, M. J. S.; RACHWAL, M. F. G.; CURCIO, G. R. |
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Afiliação: |
Pesquisadores da Embrapa Florestas. |
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Título: |
Avaliacao de especies lenhosas para implantacao de sistemas agroflorestais na forma de alley cropping em Morretes-PR. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5; CONGRESSO E EXPOSIÇÃO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Especie lenhosa; Morretes; Sistema agroflorestal. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/86520/1/Bio1127.pdf
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Marc: |
LEADER 00746nam a2200181 a 4500
001 1303287
005 2013-07-23
008 1999 bl uuuu u00u1 u #d
100 1 $aHAUER, M.
245 $aAvaliacao de especies lenhosas para implantacao de sistemas agroflorestais na forma de alley cropping em Morretes-PR.$h[electronic resource]
260 $aIn: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5; CONGRESSO E EXPOSIÇÃO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD ROM.$c1999
653 $aEspecie lenhosa
653 $aMorretes
653 $aSistema agroflorestal
700 1 $aWISNIEWSKI, C.
700 1 $aMEDRADO, M. J. S.
700 1 $aRACHWAL, M. F. G.
700 1 $aCURCIO, G. R.
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Registro original: |
Embrapa Florestas (CNPF) |
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