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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
03/02/2017 |
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Data da última atualização: |
03/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
KUWANO, B. H.; NOGUEIRA, M. A.; SANTOS, C. A.; FAGOTTI, D. S. L.; SANTOS, M. B.; LESCANO, L. E. A. M.; ANDRADE, D. S.; BARBOSA, G. M. C.; TAVARES-FILHO, J. |
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Afiliação: |
MARCO ANTONIO NOGUEIRA, CNPSO. |
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Título: |
Application of Landfill Leachate Improves Wheat Nutrition and Yield but Has Minor Effects on Soil Properties. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Journal of Environmental Quality, Madison, v. 46, n. 1, p. 153-159, Jan./Feb. 2017. |
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ISSN: |
1537-2537 |
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DOI: |
10.2134/jeq2016.02.0041 |
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Idioma: |
Inglês |
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Conteúdo: |
Landfill leachates, which are potential pollutants, may also carry significant amounts of nutrients that can be recycled by plants. We assessed the nutritional status and yield of wheat (Triticum aestivum L.) and properties of a Rhodic Kandiudult soil (depths of 0–10, 10–20, 20–40, and 40–60 cm) after 11 applications of landfill leachate over 4 yr. In the last application, wheat received 0, 32.7, 65.4, 98.1, or 130.8 m3 ha?1 (875 mg L?1 of nitrogen, N) of leachate and a positive control (90 kg ha?1 of N as urea) 15 d after sowing. Urea increased nitrate (>160 mg kg?1) in the topsoil (down to 40 cm), whereas landfill leachate increased nitrate (>60 mg kg?1) only at 40 to 60 cm with the highest dose, suggesting leaching. Urea-treated soil had less negative ?pH, which might have led to greater retention of nitrate in the topsoil. Sodium (0.02–0.26 cmolc Na kg?1), potassium (0.18–0.82 cmolc K kg?1), and electrical conductivity (0.05–0.14 dS m?1) all increased with leachate dosage. Treatments did not affect resistance to penetration and clay dispersion. Basal respiration increased with leachate dosage, whereas dehydrogenase activity decreased, suggesting effects on soil microbial metabolism. Microbial biomass and soil enzyme activities were not affected by addition of leachate. Nitrogen nutrition (15.1–22.7 g N kg?1 in flag leaves) and grain yield (1381–2378 kg grain ha?1) increased with leachate dosage so that the highest dose gave results similar to those for urea-treated plants (2563 kg grain ha?1). Landfill leachate showed strong potential as source of N for wheat but caused none, or transient, effects on soil properties. However, nitrate from leachate was more leachable than nitrate from urea. MenosLandfill leachates, which are potential pollutants, may also carry significant amounts of nutrients that can be recycled by plants. We assessed the nutritional status and yield of wheat (Triticum aestivum L.) and properties of a Rhodic Kandiudult soil (depths of 0–10, 10–20, 20–40, and 40–60 cm) after 11 applications of landfill leachate over 4 yr. In the last application, wheat received 0, 32.7, 65.4, 98.1, or 130.8 m3 ha?1 (875 mg L?1 of nitrogen, N) of leachate and a positive control (90 kg ha?1 of N as urea) 15 d after sowing. Urea increased nitrate (>160 mg kg?1) in the topsoil (down to 40 cm), whereas landfill leachate increased nitrate (>60 mg kg?1) only at 40 to 60 cm with the highest dose, suggesting leaching. Urea-treated soil had less negative ?pH, which might have led to greater retention of nitrate in the topsoil. Sodium (0.02–0.26 cmolc Na kg?1), potassium (0.18–0.82 cmolc K kg?1), and electrical conductivity (0.05–0.14 dS m?1) all increased with leachate dosage. Treatments did not affect resistance to penetration and clay dispersion. Basal respiration increased with leachate dosage, whereas dehydrogenase activity decreased, suggesting effects on soil microbial metabolism. Microbial biomass and soil enzyme activities were not affected by addition of leachate. Nitrogen nutrition (15.1–22.7 g N kg?1 in flag leaves) and grain yield (1381–2378 kg grain ha?1) increased with leachate dosage so that the highest dose gave results similar to those for urea-treated plant... Mostrar Tudo |
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Thesagro: |
Pedologia; Trigo. |
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Thesaurus Nal: |
Soil properties; Wheat. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02618naa a2200289 a 4500
001 2062630
005 2017-11-03
008 2017 bl uuuu u00u1 u #d
022 $a1537-2537
024 7 $a10.2134/jeq2016.02.0041$2DOI
100 1 $aKUWANO, B. H.
245 $aApplication of Landfill Leachate Improves Wheat Nutrition and Yield but Has Minor Effects on Soil Properties.$h[electronic resource]
260 $c2017
520 $aLandfill leachates, which are potential pollutants, may also carry significant amounts of nutrients that can be recycled by plants. We assessed the nutritional status and yield of wheat (Triticum aestivum L.) and properties of a Rhodic Kandiudult soil (depths of 0–10, 10–20, 20–40, and 40–60 cm) after 11 applications of landfill leachate over 4 yr. In the last application, wheat received 0, 32.7, 65.4, 98.1, or 130.8 m3 ha?1 (875 mg L?1 of nitrogen, N) of leachate and a positive control (90 kg ha?1 of N as urea) 15 d after sowing. Urea increased nitrate (>160 mg kg?1) in the topsoil (down to 40 cm), whereas landfill leachate increased nitrate (>60 mg kg?1) only at 40 to 60 cm with the highest dose, suggesting leaching. Urea-treated soil had less negative ?pH, which might have led to greater retention of nitrate in the topsoil. Sodium (0.02–0.26 cmolc Na kg?1), potassium (0.18–0.82 cmolc K kg?1), and electrical conductivity (0.05–0.14 dS m?1) all increased with leachate dosage. Treatments did not affect resistance to penetration and clay dispersion. Basal respiration increased with leachate dosage, whereas dehydrogenase activity decreased, suggesting effects on soil microbial metabolism. Microbial biomass and soil enzyme activities were not affected by addition of leachate. Nitrogen nutrition (15.1–22.7 g N kg?1 in flag leaves) and grain yield (1381–2378 kg grain ha?1) increased with leachate dosage so that the highest dose gave results similar to those for urea-treated plants (2563 kg grain ha?1). Landfill leachate showed strong potential as source of N for wheat but caused none, or transient, effects on soil properties. However, nitrate from leachate was more leachable than nitrate from urea.
650 $aSoil properties
650 $aWheat
650 $aPedologia
650 $aTrigo
700 1 $aNOGUEIRA, M. A.
700 1 $aSANTOS, C. A.
700 1 $aFAGOTTI, D. S. L.
700 1 $aSANTOS, M. B.
700 1 $aLESCANO, L. E. A. M.
700 1 $aANDRADE, D. S.
700 1 $aBARBOSA, G. M. C.
700 1 $aTAVARES-FILHO, J.
773 $tJournal of Environmental Quality, Madison$gv. 46, n. 1, p. 153-159, Jan./Feb. 2017.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
28/11/1996 |
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Data da última atualização: |
04/06/2014 |
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Autoria: |
FERNANDES, E. N.; BONETTI FILHO, R. Z.; SILVA, E. |
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Título: |
Avaliacao de impactos ambientais em sistemas agroflorestais. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO SOBRE SISTEMAS AGROFLORESTAIS, 1.; ENCONTRO SOBRE SISTEMAS AGROFLORESTAIS NOS PAÍSES DO MERCOSUL, 1., 1994, Porto Velho. Anais. Colombo: EMBRAPA-CNPF, 1994. v. 2, p. 361-372. |
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Série: |
(EMBRAPA-CNPF. Documentos, 27). |
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ISSN: |
0101-7691 |
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Idioma: |
Português |
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Palavras-Chave: |
Agrosilvicultural systems; Sistema agroflorestal. |
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Thesagro: |
Impacto Ambiental. |
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Thesaurus NAL: |
environmental impact. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00759naa a2200205 a 4500
001 1299564
005 2014-06-04
008 1994 bl uuuu u00u1 u #d
022 $a0101-7691
100 1 $aFERNANDES, E. N.
245 $aAvaliacao de impactos ambientais em sistemas agroflorestais.
260 $c1994
490 $a(EMBRAPA-CNPF. Documentos, 27).
650 $aenvironmental impact
650 $aImpacto Ambiental
653 $aAgrosilvicultural systems
653 $aSistema agroflorestal
700 1 $aBONETTI FILHO, R. Z.
700 1 $aSILVA, E.
773 $tIn: CONGRESSO BRASILEIRO SOBRE SISTEMAS AGROFLORESTAIS, 1.; ENCONTRO SOBRE SISTEMAS AGROFLORESTAIS NOS PAÍSES DO MERCOSUL, 1., 1994, Porto Velho. Anais. Colombo: EMBRAPA-CNPF, 1994.$gv. 2, p. 361-372.
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