Topsoil and subsoil C and N turnover are affected by superficial lime and gypsum application in the short-term

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorBangor University-
Autor(es): dc.creatorBarcelos, Jéssica P.Q.-
Autor(es): dc.creatorMariano, Eduardo-
Autor(es): dc.creatorJones, Davey L.-
Autor(es): dc.creatorRosolem, Ciro A.-
Data de aceite: dc.date.accessioned2025-08-21T19:10:58Z-
Data de disponibilização: dc.date.available2025-08-21T19:10:58Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.soilbio.2021.108456-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/222715-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/222715-
Descrição: dc.descriptionAlleviation of subsoil acidity with lime or gypsum increases carbon (C) accumulation in deep layers by stimulating root growth and C and nitrogen (N) inputs at depth. However, the effects of these amendments combined with N fertilization on soil CO2 emissions remain controversial. We evaluated the effects of superficial lime and gypsum application and N-fertilizer on C and N dynamics and microbial C use efficiency (MicCUE) in samples taken from the topsoil (0–10 cm) and subsoil (40–60 cm) of a no-till field experiment carried out in Brazil. We performed a short-term laboratory incubation with 14C-glucose and 14C-arginine to assess C and N mineralization dynamics. Liming increased topsoil pH but had no effect on subsoil acidity. A higher content of organic C, total N, and microbial biomass C and N were found in the topsoil. The addition of soil corrective (lime and gypsum) and N fertilizer had no effect on MicCUE of added 14C-glucose. However, the MicCUE of 14C-arginine was affected by the soil layer, and was higher in the subsoil. After the addition of arginine, net NH4+-N production was highest in the topsoil control, while net NO3−-N content was highest with lime + gypsum plus residual N in the same layer. We conclude that while lime and gypsum ameliorate soil acidity, they have minimal effect on C cycling through the microbial biomass, particularly in the subsoil.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de Goiás-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionBiotechnology and Biological Sciences Research Council-
Descrição: dc.descriptionFundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão-
Descrição: dc.descriptionDepartment of Crop Science School of Agriculte São Paulo State University, Av. Universitária, 3780-
Descrição: dc.descriptionSchool of Natural Sciences Bangor University-
Descrição: dc.descriptionDepartment of Crop Science School of Agriculte São Paulo State University, Av. Universitária, 3780-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de Goiás: 2015-10267001479-
Descrição: dc.descriptionFAPESP: 2015/50305-8-
Descrição: dc.descriptionFAPESP: 2017/00398-5-
Descrição: dc.descriptionFAPESP: 2017/02517-1-
Descrição: dc.descriptionBiotechnology and Biological Sciences Research Council: BB/N013201/1-
Descrição: dc.descriptionFundação de Amparo à Pesquisa e ao Desenvolvimento Científico e Tecnológico do Maranhão: RCUK-02771/16-
Idioma: dc.languageen-
Relação: dc.relationSoil Biology and Biochemistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subject14C-arginine-
Palavras-chave: dc.subject14C-glucose-
Palavras-chave: dc.subjectAmmonium sulphate-
Palavras-chave: dc.subjectCarbon use efficiency-
Palavras-chave: dc.subjectSoil acidity-
Título: dc.titleTopsoil and subsoil C and N turnover are affected by superficial lime and gypsum application in the short-term-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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