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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
25/05/2020 |
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Data da última atualização: |
07/06/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GIONGO, V.; COLEMAN, K.; SANTANA, M. da S.; SALVIANO, A. M.; OLSZVESKI, N.; SILVA, D. J.; CUNHA, T. J. F.; PARENTE, A.; WHITMORE, A. P.; RICHTER, G. M. |
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Afiliação: |
VANDERLISE GIONGO, CPATSA; Kevin Coleman; Monica da Silva Santana; ALESSANDRA MONTEIRO SALVIANO, CPATSA; Nelci Olszveski; DAVI JOSE SILVA, CPATSA; TONY JARBAS FERREIRA CUNHA, CPATSA; Angelucia Parente; Andrew P. Whitmore; Goetz Michael Richter. |
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Título: |
Optimizing multifunctional agroecosystems in irrigated dryland agriculture to restore soil carbon - experiments and modelling. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 725, jul. 2020. |
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DOI: |
https://doi.org/10.1016/j.scitotenv.2020.138072 |
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Idioma: |
Inglês |
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Conteúdo: |
Irrigated dryland agroecosystems could become more sustainable if crop and soil management enhanced soil organic carbon (SOC). We hypothesized that combining high inputs from cover crops with no-tillage will increase long-term SOC stocks. Caatinga shrublands had been cleared in 1972 for arable crops and palm plantations before implementing field experiments on Mango and Melon systems (established in 2009 and 2012, respectively). Each of the two experiments were managed with no-till (NT) or conventional till (CT), and three types of cover cropping, either a plant mixture of 75% (PM1) or 25% (PM2) legumes, or spontaneous vegetation (SV). The RothC model was used with a daily timestep to simulate the soil moisture dynamics and C turnover for this dry climate. Carbon inputs were between 2.62 and 5.82 Mg C ha?1 year?1 and increased the depleted SOC stocks by 0.08 to 0.56 Mg C ha?1 year?1. Scenarios of continuous biomass inputs of ca. 5 Mg C ha?1 year?1 for 60 years are likely to increase SOC stocks in the mango NT beyond the original Caatinga SOC by between 19.2 and 20.5 Mg C ha?1. Under CT similar inputs would increase SOC stocks only marginally above depletion (2.75 to 2.47 Mg C ha?1). Under melon, annual carbon inputs are slightly greater (up to 5.5 Mg C ha?1 year?1) and SOC stocks would increase on average by another 8% to 22.3 to 20.6 Mg C ha?1 under NT and by 8 Mg C ha?1 under CT. These long-term simulations show that combining NT with high quality cover crops (PM1, PM2) would exceed SOC stocks of the initial Caatinga within 20 and 25 years under irrigated melon and mango cultivation, respectively. These results present a solution to reverse prior loss of SOC by replacing CT dryland agriculture with irrigated NT plus high input cover crops agroecosystems MenosIrrigated dryland agroecosystems could become more sustainable if crop and soil management enhanced soil organic carbon (SOC). We hypothesized that combining high inputs from cover crops with no-tillage will increase long-term SOC stocks. Caatinga shrublands had been cleared in 1972 for arable crops and palm plantations before implementing field experiments on Mango and Melon systems (established in 2009 and 2012, respectively). Each of the two experiments were managed with no-till (NT) or conventional till (CT), and three types of cover cropping, either a plant mixture of 75% (PM1) or 25% (PM2) legumes, or spontaneous vegetation (SV). The RothC model was used with a daily timestep to simulate the soil moisture dynamics and C turnover for this dry climate. Carbon inputs were between 2.62 and 5.82 Mg C ha?1 year?1 and increased the depleted SOC stocks by 0.08 to 0.56 Mg C ha?1 year?1. Scenarios of continuous biomass inputs of ca. 5 Mg C ha?1 year?1 for 60 years are likely to increase SOC stocks in the mango NT beyond the original Caatinga SOC by between 19.2 and 20.5 Mg C ha?1. Under CT similar inputs would increase SOC stocks only marginally above depletion (2.75 to 2.47 Mg C ha?1). Under melon, annual carbon inputs are slightly greater (up to 5.5 Mg C ha?1 year?1) and SOC stocks would increase on average by another 8% to 22.3 to 20.6 Mg C ha?1 under NT and by 8 Mg C ha?1 under CT. These long-term simulations show that combining NT with high quality cover crops (PM1, PM2) wo... Mostrar Tudo |
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Palavras-Chave: |
Agricultura irrigada; Carbono organico. |
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Thesagro: |
Carbono; Composto de Carbono; Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02703naa a2200301 a 4500
001 2122555
005 2020-06-07
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.scitotenv.2020.138072$2DOI
100 1 $aGIONGO, V.
245 $aOptimizing multifunctional agroecosystems in irrigated dryland agriculture to restore soil carbon - experiments and modelling.$h[electronic resource]
260 $c2020
520 $aIrrigated dryland agroecosystems could become more sustainable if crop and soil management enhanced soil organic carbon (SOC). We hypothesized that combining high inputs from cover crops with no-tillage will increase long-term SOC stocks. Caatinga shrublands had been cleared in 1972 for arable crops and palm plantations before implementing field experiments on Mango and Melon systems (established in 2009 and 2012, respectively). Each of the two experiments were managed with no-till (NT) or conventional till (CT), and three types of cover cropping, either a plant mixture of 75% (PM1) or 25% (PM2) legumes, or spontaneous vegetation (SV). The RothC model was used with a daily timestep to simulate the soil moisture dynamics and C turnover for this dry climate. Carbon inputs were between 2.62 and 5.82 Mg C ha?1 year?1 and increased the depleted SOC stocks by 0.08 to 0.56 Mg C ha?1 year?1. Scenarios of continuous biomass inputs of ca. 5 Mg C ha?1 year?1 for 60 years are likely to increase SOC stocks in the mango NT beyond the original Caatinga SOC by between 19.2 and 20.5 Mg C ha?1. Under CT similar inputs would increase SOC stocks only marginally above depletion (2.75 to 2.47 Mg C ha?1). Under melon, annual carbon inputs are slightly greater (up to 5.5 Mg C ha?1 year?1) and SOC stocks would increase on average by another 8% to 22.3 to 20.6 Mg C ha?1 under NT and by 8 Mg C ha?1 under CT. These long-term simulations show that combining NT with high quality cover crops (PM1, PM2) would exceed SOC stocks of the initial Caatinga within 20 and 25 years under irrigated melon and mango cultivation, respectively. These results present a solution to reverse prior loss of SOC by replacing CT dryland agriculture with irrigated NT plus high input cover crops agroecosystems
650 $aCarbono
650 $aComposto de Carbono
650 $aSolo
653 $aAgricultura irrigada
653 $aCarbono organico
700 1 $aCOLEMAN, K.
700 1 $aSANTANA, M. da S.
700 1 $aSALVIANO, A. M.
700 1 $aOLSZVESKI, N.
700 1 $aSILVA, D. J.
700 1 $aCUNHA, T. J. F.
700 1 $aPARENTE, A.
700 1 $aWHITMORE, A. P.
700 1 $aRICHTER, G. M.
773 $tScience of the Total Environment$gv. 725, jul. 2020.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Trigo; Embrapa Unidades Centrais. |
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Data corrente: |
12/09/1995 |
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Data da última atualização: |
17/08/2021 |
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Autoria: |
OSÓRIO, E. A.; MOREIRA, J. C. S.; SILVA, E. C. da. |
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Afiliação: |
Eduardo Algayer Osório, UFPel; João Carlos Soares Moreira, IPEAS, Pelotas; Enedino Corrêa da Silva, IPEAS, Pelotas. |
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Título: |
Estudos de adaptação de cultivares de trigo no Rio Grande do Sul. II. Adequação de cultivares precoces à semeadura em julho. |
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Ano de publicação: |
1974 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Série Agronomia, Rio de Janeiro, v. 9, n. 10. p. 155-157, 1974. |
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ISSN: |
0304-436X |
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Idioma: |
Português |
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Conteúdo: |
Visando conhecer o comportamento de 15 cultivares de trigo na semeadura de julho, foram analisados os dados disponíveis de 70 ensaios de produção instalados em 16 locais do Rio Grande do Sul nos anos de 1968, 1969 e 1970, em seis regiões tritícolas. Excetuando o ocorrido na Região 11, as produções das cultivares semeadas em junho foram superiores àquelas das mesmas cultivares semeadas em julho. Em cada região, as cultivares de melhor comportamento nas semeaduras de junho também foram as melhores nas semeaduras de julho, coincidindo serem também as de maior destaque na média geral do Estado. Necessitando semear trigo tardiamente (em julho), os agricultores do Rio Grande do Sul devem preferir, dentre as cultivares estudadas, as IAS 55, Lagoa Vermelha,. IAS 52, IAS 54, IAS 51-Albatroz, IAS 56 e IAS 53. |
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Palavras-Chave: |
Time of seeding. |
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Thesagro: |
Características Agronômicas; Época de Semeadura. |
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Thesaurus NAL: |
wheat. |
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Categoria do assunto: |
-- |
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URL: |
https://seer.sct.embrapa.br/index.php/pab/article/view/17278
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/194151/1/Estudos-de-adaptacao-de-cultivares-de-trigo-no-R-Grande-do-Sul.-II..pdf
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Marc: |
LEADER 01504naa a2200205 a 4500
001 1823554
005 2021-08-17
008 1974 bl uuuu u00u1 u #d
022 $a0304-436X
100 1 $aOSÓRIO, E. A.
245 $aEstudos de adaptação de cultivares de trigo no Rio Grande do Sul. II. Adequação de cultivares precoces à semeadura em julho.
260 $c1974
520 $aVisando conhecer o comportamento de 15 cultivares de trigo na semeadura de julho, foram analisados os dados disponíveis de 70 ensaios de produção instalados em 16 locais do Rio Grande do Sul nos anos de 1968, 1969 e 1970, em seis regiões tritícolas. Excetuando o ocorrido na Região 11, as produções das cultivares semeadas em junho foram superiores àquelas das mesmas cultivares semeadas em julho. Em cada região, as cultivares de melhor comportamento nas semeaduras de junho também foram as melhores nas semeaduras de julho, coincidindo serem também as de maior destaque na média geral do Estado. Necessitando semear trigo tardiamente (em julho), os agricultores do Rio Grande do Sul devem preferir, dentre as cultivares estudadas, as IAS 55, Lagoa Vermelha,. IAS 52, IAS 54, IAS 51-Albatroz, IAS 56 e IAS 53.
650 $awheat
650 $aCaracterísticas Agronômicas
650 $aÉpoca de Semeadura
653 $aTime of seeding
700 1 $aMOREIRA, J. C. S.
700 1 $aSILVA, E. C. da
773 $tPesquisa Agropecuária Brasileira, Série Agronomia, Rio de Janeiro$gv. 9, n. 10. p. 155-157, 1974.
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Embrapa Trigo (CNPT) |
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