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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
20/03/2015 |
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Data da última atualização: |
20/03/2015 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CARVALHO, M. T. de M.; MADARI, B. E.; BASTIAANS, L.; VAN OORT, P.; HEINEMANN, A. B.; SILVA, M. A. S. da; MAIA, A. de H. N.; MEINKE, H. |
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Afiliação: |
MARCIA THAIS DE MELO CARVALHO, CNPAF; BEATA EMOKE MADARI, CNPAF; LAMMERT BASTIAANS, Wageningen University; PEPIJN VAN OORT, Wageningen University; ALEXANDRE BRYAN HEINEMANN, CNPAF; MELLISSA ANANIAS SOLER DA SILVA, CNPAF; ALINE DE HOLANDA NUNES MAIA, CNPMA; HOLGER MEINKE, University of Tasmania. |
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Título: |
Growth of aerobic rice in the presence of biochar as soil amendment: short-term effects in a clayey Rhodic Ferralsol in the Brazilian savanna (Cerrado). |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: JOINT SSA AND NZSSS SOIL SCIENCE CONFERENCE, 5., 2012, Hobart. Soil solutions for diverse landscapes. Hobart: SSA: NZSSS, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Increasing yields in aerobic rice systems (ARS) is a challenge in the Brazilian savannah (BS), where rice is grown under unfavourable conditions characterised by well drained and low fertile soils. Management options that could increase soil water availability and nitrogen (N) use efficiency would probably lead to higher grain yields in ARS. One promising option under consideration is the use of ?biochar?, a by-product of charcoal made of hardwood, as a soil amendment. Biochar is high in resistant (pyrogenic) carbon (70 to 80% of the material), which influences some processes in soil, depending on the amount applied and its interaction with the soil properties. Yet there are no conclusive field studies that quantify the effect of hardwood biochar application on grain yield of ARS in the BS. Here, we report single season effects of biochar application coupled with N fertilisation on aerobic rice growth and grain yield in a clayey Rhodic Ferralsol in the BS. At 72 days after sowing, leaf area index and total shoot dry matter of aerobic rice was negatively related to biochar rates above 16 Mg/ha. This effect might be related to changes in soil properties due biochar application, such as increased soil nitrate availability.We found that biochar applications did not influence grain yield. The effect of N fertilisation on yield followed a quadratic pattern, with an optimal N rate of around 46 kg/ha to achieve a grain yield above 3 Mg/ha, regardless of biochar application. The trends will guide future research. MenosIncreasing yields in aerobic rice systems (ARS) is a challenge in the Brazilian savannah (BS), where rice is grown under unfavourable conditions characterised by well drained and low fertile soils. Management options that could increase soil water availability and nitrogen (N) use efficiency would probably lead to higher grain yields in ARS. One promising option under consideration is the use of ?biochar?, a by-product of charcoal made of hardwood, as a soil amendment. Biochar is high in resistant (pyrogenic) carbon (70 to 80% of the material), which influences some processes in soil, depending on the amount applied and its interaction with the soil properties. Yet there are no conclusive field studies that quantify the effect of hardwood biochar application on grain yield of ARS in the BS. Here, we report single season effects of biochar application coupled with N fertilisation on aerobic rice growth and grain yield in a clayey Rhodic Ferralsol in the BS. At 72 days after sowing, leaf area index and total shoot dry matter of aerobic rice was negatively related to biochar rates above 16 Mg/ha. This effect might be related to changes in soil properties due biochar application, such as increased soil nitrate availability.We found that biochar applications did not influence grain yield. The effect of N fertilisation on yield followed a quadratic pattern, with an optimal N rate of around 46 kg/ha to achieve a grain yield above 3 Mg/ha, regardless of biochar application. The tren... Mostrar Tudo |
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Palavras-Chave: |
Ferralsol; Pinthosol; Pyrogenic C; Soil amendment. |
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Thesagro: |
Arroz; Cerrado; Oryza Sativa. |
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Thesaurus Nal: |
biochar. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/115935/1/2014AA01.pdf
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Marc: |
LEADER 02495naa a2200301 a 4500
001 2011921
005 2015-03-20
008 2012 bl uuuu u00u1 u #d
100 1 $aCARVALHO, M. T. de M.
245 $aGrowth of aerobic rice in the presence of biochar as soil amendment$bshort-term effects in a clayey Rhodic Ferralsol in the Brazilian savanna (Cerrado).$h[electronic resource]
260 $c2012
520 $aIncreasing yields in aerobic rice systems (ARS) is a challenge in the Brazilian savannah (BS), where rice is grown under unfavourable conditions characterised by well drained and low fertile soils. Management options that could increase soil water availability and nitrogen (N) use efficiency would probably lead to higher grain yields in ARS. One promising option under consideration is the use of ?biochar?, a by-product of charcoal made of hardwood, as a soil amendment. Biochar is high in resistant (pyrogenic) carbon (70 to 80% of the material), which influences some processes in soil, depending on the amount applied and its interaction with the soil properties. Yet there are no conclusive field studies that quantify the effect of hardwood biochar application on grain yield of ARS in the BS. Here, we report single season effects of biochar application coupled with N fertilisation on aerobic rice growth and grain yield in a clayey Rhodic Ferralsol in the BS. At 72 days after sowing, leaf area index and total shoot dry matter of aerobic rice was negatively related to biochar rates above 16 Mg/ha. This effect might be related to changes in soil properties due biochar application, such as increased soil nitrate availability.We found that biochar applications did not influence grain yield. The effect of N fertilisation on yield followed a quadratic pattern, with an optimal N rate of around 46 kg/ha to achieve a grain yield above 3 Mg/ha, regardless of biochar application. The trends will guide future research.
650 $abiochar
650 $aArroz
650 $aCerrado
650 $aOryza Sativa
653 $aFerralsol
653 $aPinthosol
653 $aPyrogenic C
653 $aSoil amendment
700 1 $aMADARI, B. E.
700 1 $aBASTIAANS, L.
700 1 $aVAN OORT, P.
700 1 $aHEINEMANN, A. B.
700 1 $aSILVA, M. A. S. da
700 1 $aMAIA, A. de H. N.
700 1 $aMEINKE, H.
773 $tIn: JOINT SSA AND NZSSS SOIL SCIENCE CONFERENCE, 5., 2012, Hobart. Soil solutions for diverse landscapes. Hobart: SSA: NZSSS, 2012.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Tipo/Formato |
Classificação |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Algodão. Para informações adicionais entre em contato com cnpa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
07/01/2005 |
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Data da última atualização: |
22/05/2012 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ALMEIDA, R. P. de. |
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Afiliação: |
RAUL PORFIRIO DE ALMEIDA, CNPA. |
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Título: |
Cotton insect pest control on a small farm: an approach of successful biological control using Trichogramma. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
In: ANNUAL MEETING OF ENTOMOLOGISTS IN THE NETHERLANDS, 12.,2001. Amsterdam. Proccedings...Amsterdam: Nederlandse Entomologische Vereniging, 2001. p.81-84. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Controle; Insetos; Upland. |
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Thesagro: |
Algodão; Químico. |
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Thesaurus NAL: |
Trichogramma. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00625naa a2200181 a 4500
001 1273675
005 2012-05-22
008 2001 bl --- 0-- u #d
100 1 $aALMEIDA, R. P. de
245 $aCotton insect pest control on a small farm$ban approach of successful biological control using Trichogramma.
260 $c2001
650 $aTrichogramma
650 $aAlgodão
650 $aQuímico
653 $aControle
653 $aInsetos
653 $aUpland
773 $tIn: ANNUAL MEETING OF ENTOMOLOGISTS IN THE NETHERLANDS, 12.,2001. Amsterdam. Proccedings...Amsterdam: Nederlandse Entomologische Vereniging, 2001. p.81-84.
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Embrapa Algodão (CNPA) |
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