| |
|
|
 | 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 |
|
Biblioteca(s): |
Embrapa Suínos e Aves. |
|
Data corrente: |
10/08/2021 |
|
Data da última atualização: |
10/08/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
NICOLOSO, R. da S.; RICE, C. W. |
|
Afiliação: |
RODRIGO DA SILVEIRA NICOLOSO, CNPSA; CHARLES W. RICE, Kansas State University. |
|
Título: |
Intensification of no-till agricultural systems: an opportunity for carbon sequestration. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Soil Science Society of America Journal, 20 Apr. 2021. |
|
DOI: |
https://doi.org/10.1002/saj2.20260 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: The ?4 per 1,000? initiative was launched at the 21st Conference of the Parties (COP21) stimulating a long-standing debate on the potential of no-till (NT) to promote soil C sequestration. Previous reviews found little or no soil organic C (SOC) accrual in NT soils as compared with full inversion tillage when soils are sampled deeper than 30 cm. Here, we present the results of a global meta-analysis of studies assessing SOC and total N (TN) storage and dynamics in NT and tilled soils from the most important agricultural regions of the world. Overall, our results show that NT soils stored 6.7 ± 1.9 Mg C ha?1 and 1.1 ± 0.4 Mg N ha?1 more than tilled soils (0-to-100-cm depth) with an average of 16 yr of NT, in contrast with previous findings. However, C sequestration (+4.7 ± 1.9 Mg C ha?1 in the 0-to-60-cm depth with an average of 11 yr of NT) depended on the association of NT with increased crop frequency and the inclusion of legumes cover crops. Single-cropping systems lack the necessary C inputs to offset SOC losses in the soil profile (below 30-cm depth). However, double-cropping systems decreased soil TN that may constrain future C sequestration. The use of legumes alleviated TN loss and supported soil C sequestration. Briefly, our findings indicate that NT can avoid SOC losses from tilled soils, partially offsetting CO2 emissions from agriculture. Moreover, NT with agricultural intensification can promote soil C sequestration, thus contributing to soil quality, food security, and adaptation to climate change. MenosAbstract: The ?4 per 1,000? initiative was launched at the 21st Conference of the Parties (COP21) stimulating a long-standing debate on the potential of no-till (NT) to promote soil C sequestration. Previous reviews found little or no soil organic C (SOC) accrual in NT soils as compared with full inversion tillage when soils are sampled deeper than 30 cm. Here, we present the results of a global meta-analysis of studies assessing SOC and total N (TN) storage and dynamics in NT and tilled soils from the most important agricultural regions of the world. Overall, our results show that NT soils stored 6.7 ± 1.9 Mg C ha?1 and 1.1 ± 0.4 Mg N ha?1 more than tilled soils (0-to-100-cm depth) with an average of 16 yr of NT, in contrast with previous findings. However, C sequestration (+4.7 ± 1.9 Mg C ha?1 in the 0-to-60-cm depth with an average of 11 yr of NT) depended on the association of NT with increased crop frequency and the inclusion of legumes cover crops. Single-cropping systems lack the necessary C inputs to offset SOC losses in the soil profile (below 30-cm depth). However, double-cropping systems decreased soil TN that may constrain future C sequestration. The use of legumes alleviated TN loss and supported soil C sequestration. Briefly, our findings indicate that NT can avoid SOC losses from tilled soils, partially offsetting CO2 emissions from agriculture. Moreover, NT with agricultural intensification can promote soil C sequestration, thus contributing to soil quality, ... Mostrar Tudo |
|
Palavras-Chave: |
Agricultural systems; Sistemas agrícolas. |
|
Thesagro: |
Carbono; Plantio Direto; Solo. |
|
Thesaurus Nal: |
Greenhouse gas emissions; Greenhouse soils; No-tillage. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02279naa a2200241 a 4500
001 2133401
005 2021-08-10
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1002/saj2.20260$2DOI
100 1 $aNICOLOSO, R. da S.
245 $aIntensification of no-till agricultural systems$ban opportunity for carbon sequestration.$h[electronic resource]
260 $c2021
520 $aAbstract: The ?4 per 1,000? initiative was launched at the 21st Conference of the Parties (COP21) stimulating a long-standing debate on the potential of no-till (NT) to promote soil C sequestration. Previous reviews found little or no soil organic C (SOC) accrual in NT soils as compared with full inversion tillage when soils are sampled deeper than 30 cm. Here, we present the results of a global meta-analysis of studies assessing SOC and total N (TN) storage and dynamics in NT and tilled soils from the most important agricultural regions of the world. Overall, our results show that NT soils stored 6.7 ± 1.9 Mg C ha?1 and 1.1 ± 0.4 Mg N ha?1 more than tilled soils (0-to-100-cm depth) with an average of 16 yr of NT, in contrast with previous findings. However, C sequestration (+4.7 ± 1.9 Mg C ha?1 in the 0-to-60-cm depth with an average of 11 yr of NT) depended on the association of NT with increased crop frequency and the inclusion of legumes cover crops. Single-cropping systems lack the necessary C inputs to offset SOC losses in the soil profile (below 30-cm depth). However, double-cropping systems decreased soil TN that may constrain future C sequestration. The use of legumes alleviated TN loss and supported soil C sequestration. Briefly, our findings indicate that NT can avoid SOC losses from tilled soils, partially offsetting CO2 emissions from agriculture. Moreover, NT with agricultural intensification can promote soil C sequestration, thus contributing to soil quality, food security, and adaptation to climate change.
650 $aGreenhouse gas emissions
650 $aGreenhouse soils
650 $aNo-tillage
650 $aCarbono
650 $aPlantio Direto
650 $aSolo
653 $aAgricultural systems
653 $aSistemas agrícolas
700 1 $aRICE, C. W.
773 $tSoil Science Society of America Journal, 20 Apr. 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Suínos e Aves (CNPSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
15/01/2019 |
|
Data da última atualização: |
15/01/2019 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
MOURA, A. M. de; BOTELHO, F. B. S.; FÉLIX, M. R.; SILVA, C. S. C. da; ROSÁRIO NETO, A.; CASTRO, A. P. de. |
|
Afiliação: |
AMANDA MENDES DE MOURA, UFLA; FLAVIA BARBOSA SILVA BOTELHO, UFLA; MARCO RENAN FELIX, UFLA; CAMILA SOARES CARDOSO DA SILVA, UFLA; ANTONIO ROSARIO NETO, UFLA; ADRIANO PEREIRA DE CASTRO, CNPAF. |
|
Título: |
Efeito do déficit hídrico na esterilidade de espiguetas em arroz de terras altas. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM IN GENETICS AND PLANT BREEDING, 22., 2018, Lavras. Anais... Lavras: Ed. UFLA, 2018. |
|
Páginas: |
p. 40. |
|
Idioma: |
Português |
|
Conteúdo: |
Objetivou-se o estudo do comportamento de linhagens de arroz de terras altas em relação à esterilidade de espiguetas, cultivadas em ambientes com e sem deficiência hídrica. |
|
Palavras-Chave: |
Condições hídricas; Estresse abiótico. |
|
Thesagro: |
Arroz; Deficiência Hídrica; Oryza Sativa; Resistência a Seca; Stress. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190637/1/CNPAF-2018-isgpb-p40.pdf
|
|
Marc: |
LEADER 01008nam a2200265 a 4500
001 2104223
005 2019-01-15
008 2018 bl uuuu u00u1 u #d
100 1 $aMOURA, A. M. de
245 $aEfeito do déficit hídrico na esterilidade de espiguetas em arroz de terras altas.$h[electronic resource]
260 $aIn: INTERNATIONAL SYMPOSIUM IN GENETICS AND PLANT BREEDING, 22., 2018, Lavras. Anais... Lavras: Ed. UFLA$c2018
300 $ap. 40.
520 $aObjetivou-se o estudo do comportamento de linhagens de arroz de terras altas em relação à esterilidade de espiguetas, cultivadas em ambientes com e sem deficiência hídrica.
650 $aArroz
650 $aDeficiência Hídrica
650 $aOryza Sativa
650 $aResistência a Seca
650 $aStress
653 $aCondições hídricas
653 $aEstresse abiótico
700 1 $aBOTELHO, F. B. S.
700 1 $aFÉLIX, M. R.
700 1 $aSILVA, C. S. C. da
700 1 $aROSÁRIO NETO, A.
700 1 $aCASTRO, A. P. de
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
