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Registro Completo |
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Biblioteca(s): |
Embrapa Soja; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
18/05/1994 |
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Data da última atualização: |
09/12/2004 |
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Autoria: |
NEPOMUCENO, A. L.; SILVA, P. R. F. da. |
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Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
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Título: |
Efeito do arranjo de plantas e da presenca de ervas daninhas nas caracteristicas de plantas associadas a colheita de girassol. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.27, n.7, p.1057-1063, jul. 1992. |
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Idioma: |
Português |
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Conteúdo: |
Com o objetivo de avaliar o efeito de arranjos de plantas e da presenca de ervas daninhas na epoca de colheita e em outras caracteristicas agronomicas associadas a colheita do girassol cv. Contisol 711, conduziu-se este trabalho na regiao fisiografica da Depressa Central do Rio Grande do Sul, Rs, no ano agricola de 1987/88. O tratamento constaram de tres densidades de plantas (30, 50 e 70 mil plantas/ha), tres espacamentos entre linhas (0,4; 0,7 e 1,0 m), e de presenca e ausencia de ervas daninhas. Com o aumento de densidade de plantas e com a presenca de ervas daninhas houve a reducao da umidade de graos e de receptaculo de capitulo, assim como aceleracao da senescencia foliar, avaliada pelo indice de area foliar. Esses resultados evidenciaram que a elevacao da densidade de plantas dentro dos limites estudados, pode constituir metodo eficiente para antecipar a colheita do girassol sem reflexos negativos sobre outras caracteristicas a ela associadas. |
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Palavras-Chave: |
Acamamento; Brasil; Broken stem; Densidade; Densidade de planta; Espacamento entre linha; Grain moisture; Plant lodging; Planting density; Quebra de planta; Receptacle moisture; Rio Grande do Sul; Sunflower; Umidade de Grao; Umidade de receptaculo. |
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Thesagro: |
Girassol; Helianthus Annuus; Plantio. |
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Thesaurus Nal: |
Brazil; plant density; row spacing. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPSO/1415/1/pab13_jul_92.pdf
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Marc: |
LEADER 02069naa a2200385 a 4500
001 1444774
005 2004-12-09
008 1992 bl uuuu u00u1 u #d
100 1 $aNEPOMUCENO, A. L.
245 $aEfeito do arranjo de plantas e da presenca de ervas daninhas nas caracteristicas de plantas associadas a colheita de girassol.
260 $c1992
520 $aCom o objetivo de avaliar o efeito de arranjos de plantas e da presenca de ervas daninhas na epoca de colheita e em outras caracteristicas agronomicas associadas a colheita do girassol cv. Contisol 711, conduziu-se este trabalho na regiao fisiografica da Depressa Central do Rio Grande do Sul, Rs, no ano agricola de 1987/88. O tratamento constaram de tres densidades de plantas (30, 50 e 70 mil plantas/ha), tres espacamentos entre linhas (0,4; 0,7 e 1,0 m), e de presenca e ausencia de ervas daninhas. Com o aumento de densidade de plantas e com a presenca de ervas daninhas houve a reducao da umidade de graos e de receptaculo de capitulo, assim como aceleracao da senescencia foliar, avaliada pelo indice de area foliar. Esses resultados evidenciaram que a elevacao da densidade de plantas dentro dos limites estudados, pode constituir metodo eficiente para antecipar a colheita do girassol sem reflexos negativos sobre outras caracteristicas a ela associadas.
650 $aBrazil
650 $aplant density
650 $arow spacing
650 $aGirassol
650 $aHelianthus Annuus
650 $aPlantio
653 $aAcamamento
653 $aBrasil
653 $aBroken stem
653 $aDensidade
653 $aDensidade de planta
653 $aEspacamento entre linha
653 $aGrain moisture
653 $aPlant lodging
653 $aPlanting density
653 $aQuebra de planta
653 $aReceptacle moisture
653 $aRio Grande do Sul
653 $aSunflower
653 $aUmidade de Grao
653 $aUmidade de receptaculo
700 1 $aSILVA, P. R. F. da
773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.27, n.7, p.1057-1063, jul. 1992.
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Registro original: |
Embrapa Soja (CNPSO) |
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URL |
Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Suínos e Aves. |
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Data corrente: |
10/11/2020 |
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Data da última atualização: |
10/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SARDÁ, L. G.; HIGARASHI, M. M.; NICOLOSO, R. da S.; FALKOSKI, C.; RIBEIRO, S. M. S.; SILVEIRA, C. A. P.; SOARES, H. M. |
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Afiliação: |
LUANA GOULART SARDÁ, UFSC; MARTHA MAYUMI HIGARASHI, CNPSA; RODRIGO DA SILVEIRA NICOLOSO, CNPSA; CAMILA FALKOSKI, UNC/Concórdia; STEPHANIE M. S. RIBEIRO, UNC/Concórdia; CARLOS AUGUSTO POSSER SILVEIRA, CPACT; HUGO MOREIRA SOARES, UFSC. |
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Título: |
Effects of dicyandiamide and Mg/P on the global warming potential of swine slurry and sawdust cocomposting. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 27, n. 24, p. 30405-30418, 2020. |
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DOI: |
https://doi.org/10.1007/s11356-020-09244-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Composting is an emerging strategy for swine slurry treatment; nonetheless, significant greenhouse gases (GHG) emissions may occur during this process.We carried out two separate assays with increasing doses of dicyandiamide (DCD; up to 1.1%w/w) as a nitrification inhibitor and solutions ofMgCl2 and H3PO4 (Mg/P; up to 0.09/0.06 mol kg−1) to promote struvite crystallization in order to assess their efficiencies as additives to decrease GHG emission during swine slurry cocomposting with sawdust (1:1v/v). We monitored the nitrous oxide (N2O-N), methane (CH4-C), and carbon dioxide (CO2-C) emissions and the ammonia (NH4 +-N) and nitrate/nitrite (NOx-N) concentrations in compost reactors (35 L) during the first 4?5 weeks of composting. DCD had no effect on CH4-C and CO2-C emissions but decreased N2O-N losses by up to 56% compared with control. However, DCD inactivation was favored by thermophilic conditions and N2O-N emissions increased to same levels of control after 13 days. Mg/P was effective to decrease N2O-N losses only at the highest dose, which also sustained higher [NH4 +-N] in the compost by the end of the assessment. Nonetheless, the use of 0.09/0.06 mol kg−1 of Mg/P also decreased CH4-C and CO2-C emissions compared with lower doses of Mg/P and unamended treatments. Overall, DCD and Mg/P amendments decreased the global warming potential (GWP) of swine slurry composting by up to 46 and 28%, respectively. The Mg/P application may be also interesting to increase the compost quality by increasing its NH4 +-N availability. MenosAbstract: Composting is an emerging strategy for swine slurry treatment; nonetheless, significant greenhouse gases (GHG) emissions may occur during this process.We carried out two separate assays with increasing doses of dicyandiamide (DCD; up to 1.1%w/w) as a nitrification inhibitor and solutions ofMgCl2 and H3PO4 (Mg/P; up to 0.09/0.06 mol kg−1) to promote struvite crystallization in order to assess their efficiencies as additives to decrease GHG emission during swine slurry cocomposting with sawdust (1:1v/v). We monitored the nitrous oxide (N2O-N), methane (CH4-C), and carbon dioxide (CO2-C) emissions and the ammonia (NH4 +-N) and nitrate/nitrite (NOx-N) concentrations in compost reactors (35 L) during the first 4?5 weeks of composting. DCD had no effect on CH4-C and CO2-C emissions but decreased N2O-N losses by up to 56% compared with control. However, DCD inactivation was favored by thermophilic conditions and N2O-N emissions increased to same levels of control after 13 days. Mg/P was effective to decrease N2O-N losses only at the highest dose, which also sustained higher [NH4 +-N] in the compost by the end of the assessment. Nonetheless, the use of 0.09/0.06 mol kg−1 of Mg/P also decreased CH4-C and CO2-C emissions compared with lower doses of Mg/P and unamended treatments. Overall, DCD and Mg/P amendments decreased the global warming potential (GWP) of swine slurry composting by up to 46 and 28%, respectively. The Mg/P application may be also interesting t... Mostrar Tudo |
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Palavras-Chave: |
Cocompostagem; Cocomposting; Dicianodiamida; Gás de efeito estufa; Precipitação de estruvita; Struvite precipitation; Swine slurry; Swine waste. |
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Thesagro: |
Aditivo; Dejeto; Suíno. |
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Thesaurus NAL: |
Additives; Dicyandiamide; Greenhouse gas emissions; Greenhouse gases; Wastewater treatment. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02769naa a2200397 a 4500
001 2126440
005 2020-11-10
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11356-020-09244-8$2DOI
100 1 $aSARDÁ, L. G.
245 $aEffects of dicyandiamide and Mg/P on the global warming potential of swine slurry and sawdust cocomposting.$h[electronic resource]
260 $c2020
520 $aAbstract: Composting is an emerging strategy for swine slurry treatment; nonetheless, significant greenhouse gases (GHG) emissions may occur during this process.We carried out two separate assays with increasing doses of dicyandiamide (DCD; up to 1.1%w/w) as a nitrification inhibitor and solutions ofMgCl2 and H3PO4 (Mg/P; up to 0.09/0.06 mol kg−1) to promote struvite crystallization in order to assess their efficiencies as additives to decrease GHG emission during swine slurry cocomposting with sawdust (1:1v/v). We monitored the nitrous oxide (N2O-N), methane (CH4-C), and carbon dioxide (CO2-C) emissions and the ammonia (NH4 +-N) and nitrate/nitrite (NOx-N) concentrations in compost reactors (35 L) during the first 4?5 weeks of composting. DCD had no effect on CH4-C and CO2-C emissions but decreased N2O-N losses by up to 56% compared with control. However, DCD inactivation was favored by thermophilic conditions and N2O-N emissions increased to same levels of control after 13 days. Mg/P was effective to decrease N2O-N losses only at the highest dose, which also sustained higher [NH4 +-N] in the compost by the end of the assessment. Nonetheless, the use of 0.09/0.06 mol kg−1 of Mg/P also decreased CH4-C and CO2-C emissions compared with lower doses of Mg/P and unamended treatments. Overall, DCD and Mg/P amendments decreased the global warming potential (GWP) of swine slurry composting by up to 46 and 28%, respectively. The Mg/P application may be also interesting to increase the compost quality by increasing its NH4 +-N availability.
650 $aAdditives
650 $aDicyandiamide
650 $aGreenhouse gas emissions
650 $aGreenhouse gases
650 $aWastewater treatment
650 $aAditivo
650 $aDejeto
650 $aSuíno
653 $aCocompostagem
653 $aCocomposting
653 $aDicianodiamida
653 $aGás de efeito estufa
653 $aPrecipitação de estruvita
653 $aStruvite precipitation
653 $aSwine slurry
653 $aSwine waste
700 1 $aHIGARASHI, M. M.
700 1 $aNICOLOSO, R. da S.
700 1 $aFALKOSKI, C.
700 1 $aRIBEIRO, S. M. S.
700 1 $aSILVEIRA, C. A. P.
700 1 $aSOARES, H. M.
773 $tEnvironmental Science and Pollution Research$gv. 27, n. 24, p. 30405-30418, 2020.
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Embrapa Suínos e Aves (CNPSA) |
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