Intensive crop rotations and residue quality increase soil phosphorus lability under long-term no-till in tropical soils

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorRigon, João Paulo Gonsiorkiewicz-
Autor(es): dc.creatorCrusciol, Carlos Alexandre Costa-
Autor(es): dc.creatorCalonego, Juliano Carlos-
Autor(es): dc.creatorPavinato, Paulo Sérgio-
Autor(es): dc.creatorAzevedo, Antonio Carlos-
Autor(es): dc.creatorRosolem, Ciro Antonio-
Data de aceite: dc.date.accessioned2025-08-21T20:50:37Z-
Data de disponibilização: dc.date.available2025-08-21T20:50:37Z-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2023-03-02-
Data de envio: dc.date.issued2022-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.still.2022.105446-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/241941-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/241941-
Descrição: dc.descriptionThis study assessed soil Phosphorus (P) fractions and lability according to crops in rotation and crop residue P inputs under long-term no-till (NT) in weathered tropical soils. Two experiments were established in split-plot designs with fall-winter as the main plot and spring as the subplots. In one experiment, sunflower and triticale were grown in Typic Rhodudalf (TR) soil in fall-winter; in the other experiment, monocropped and intercropped ruzigrass and grain sorghum were grown in Rhodic Hapludox (RH) soil in fall-winter. In both experiments, sunn hemp, forage sorghum, and pearl millet were grown in the spring; an additional fallow treatment was established in spring in TR. Soybean was grown every year in the summer in both experiments. After 12 (TR) and 9 (RH) years, the crop residue quality (e.g. N content and lignin-N ratio) and P inputs of the various crops were assessed. In addition, soil P fractions were determined according to the Hedley procedure. High-quality residue enhanced P recycling by soybean under crop rotation with sunn hemp in both experiments, sunflower in TR, and ruzigrass in RH. Sunn hemp increased soil labile P by 13% compared with pearl millet in TR and by 40% compared with forage sorghum and pearl millet in RH. Forage sorghum in spring enhanced P mod-labile in TR, effect also observed for monocropped grain sorghum and ruzigrass in fall-winter in RH compared to both intercropped. In general, crop rotation under NT improved soil P lability, particularly the biological P pool, suggesting positive impacts from crop residue quality. The results of this study can be used to guide P fertilization strategies for NT cropping systems in tropical soils.-
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.descriptionSao Paulo State University (UNESP) College of Agricultural Sciences department of Crop Science, SP-
Descrição: dc.descriptionUniversity of Sao Paulo (USP) Luiz de Queiroz College of Agriculture, SP-
Descrição: dc.descriptionSao Paulo State University (UNESP) College of Agricultural Sciences department of Crop Science, SP-
Descrição: dc.descriptionFAPESP: 13/23359–4-
Descrição: dc.descriptionFAPESP: 15/23389–6-
Descrição: dc.descriptionFAPESP: 17/23029–5-
Idioma: dc.languageen-
Relação: dc.relationSoil and Tillage Research-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCover crop-
Palavras-chave: dc.subjectP recycling-
Palavras-chave: dc.subjectSoil management-
Palavras-chave: dc.subjectTropical soil-
Título: dc.titleIntensive crop rotations and residue quality increase soil phosphorus lability under long-term no-till in tropical soils-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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