Long-term effects of lime and phosphogypsum on soil carbon and nitrogen and physical attributes under tropical no-till

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal Univ. of Goiás (UFG)-
Autor(es): dc.contributorUniv. of Illinois-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorda Costa, Claudio Hideo Martins-
Autor(es): dc.creatorWander, Michelle M.-
Autor(es): dc.creatorCrusciol, Carlos Alexandre Costa [UNESP]-
Autor(es): dc.creatorUgarte, Carmen-
Autor(es): dc.creatorRigon, João Paulo Gonsiorkiewicz [UNESP]-
Autor(es): dc.creatorSoratto, Rogério Peres [UNESP]-
Autor(es): dc.creatorCalonego, Juliano Carlos [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:52:52Z-
Data de disponibilização: dc.date.available2022-02-22T00:52:52Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/saj2.20182-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208262-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208262-
Descrição: dc.descriptionLime and phosphogypsum applications are well-established practices in weathered soils, and their surface application under no-till (NT) can affect soil physical attributes and C and N fractions. This study determined the long-term (10-yr) effects of lime and phosphogypsum applications to the soil surface on soil C and N fractions of a tropical NT field. The experimental design was a randomized block with four treatments and four replications. The following treatments were applied in October 2002, November 2004, and October 2010, respectively: limestone (2,000 kg ha−1), phosphogypsum (2,100 kg ha−1), and limestone (2,000 kg ha−1) plus phosphogypsum (2,100 kg ha−1). In general, after 10 yr of liming, both alone and when associated with phosphogypsum, the cumulative crop straw inputs were increased at least 20% across the years, and the C fractions increased remarkably at different soil depths. Both treatments improved the SOC stocks by 24% (12.5–15.6 Mg ha−1) at 0.1–0.2-m soil depths and by 10% (30.6–33.8 Mg ha−1) at 0–0.2-m soil depths, and in general the soil aggregation at 0–0.4-m soil depths. However, the particulate C and N fractions were reduced at 0–0.05-m soil depth, suggesting a slight response to the transitory trend of soil organic C (SOC) depletion. Liming, both alone and when associated with phosphogypsum, overcame the transitory C pool depletion and improved soil aggregation, soil C fractions, and SOC stocks and could be considered an important factor that drives the sustainability of cropping systems under NT.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFederal Univ. of Goiás (UFG)-
Descrição: dc.descriptionDep. of Natural Resources and Environmental Sciences Univ. of Illinois-
Descrição: dc.descriptionDep. of Crop Science College of Agricultural Science São Paulo State Univ. (UNESP)-
Descrição: dc.descriptionDep. of Crop Science College of Agricultural Science São Paulo State Univ. (UNESP)-
Descrição: dc.descriptionFAPESP: 2011/10493-9-
Descrição: dc.descriptionFAPESP: 2013/03683-1-
Descrição: dc.descriptionFAPESP: 2013/06733-0-
Descrição: dc.descriptionFAPESP: 2013/26669-4-
Descrição: dc.descriptionFAPESP: 2014/06175-0-
Formato: dc.format328-339-
Idioma: dc.languageen-
Relação: dc.relationSoil Science Society of America Journal-
???dc.source???: dc.sourceScopus-
Título: dc.titleLong-term effects of lime and phosphogypsum on soil carbon and nitrogen and physical attributes under tropical no-till-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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