Sweet potato yield and quality as a function of phosphorus fertilization in different soils

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCordeiro, Carlos F. Dos S.-
Autor(es): dc.creatorEcher, Fábio R.-
Autor(es): dc.creatorBatista, Guilherme D.-
Autor(es): dc.creatorFernandes, Adalton M.-
Data de aceite: dc.date.accessioned2025-08-21T20:08:03Z-
Data de disponibilização: dc.date.available2025-08-21T20:08:03Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/1807-1929/AGRIAMBI.V27N6P487-495-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/248592-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/248592-
Descrição: dc.descriptionPhosphorus (P) is an essential nutrient for growth and yield of sweet potatoes; in sandy soils, sweet potato yield and quality may be limited by application of low P doses, mainly in degraded areas. The objective of this work was to evaluate the effect of P doses on yield and quality of sweet potato root tubers grown in tropical sandy soils with different initial P availabilities: 23.2 mg dm-3 (high P-crop rotation) and 3.7 mg dm-3 (low P-post degraded pasture). Two experiments were carried out in a randomized block design, with four replicates. The treatments consisted of P doses (0, 22, 44, 88, and 176 kg ha-1) applied to the planting bed. Tuber yield, number and mean weight of tubers, P concentration in leaves and tubers, exported P, as well as the percentage of starch, reducing sugars, total sugars, and sucrose in the tubers were evaluated. P concentration in the soil was evaluated at the end of the experiment. In the area with high P availability (> 20 mg dm-3-resin), increasing P doses did not increase root tuber yield and decreased root starch concentrations. In the area with low P availability (< 3.7 mg dm-3-resin), root tuber yield and starch concentration peaked when applying 68 and 33 kg ha-1 of P, respectively. In areas after degraded pasture, with low initial soil P concentration, P fertilization for sweet potato crops should be carried out with a P dose of 68 kg ha-1. In areas with crop rotation and adequate soil P concentration, P fertilization should be carried out to replace the amount of P exported by the harvested root tubers to avoid decreases in soil fertility.-
Descrição: dc.descriptionUniversidade Estadual Paulista Departamento de Produção e Melhoramento Vegetal, SP-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho” Centro de Raízes e Amidos Tropicais, SP-
Descrição: dc.descriptionUniversidade Estadual Paulista Departamento de Produção e Melhoramento Vegetal, SP-
Descrição: dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho” Centro de Raízes e Amidos Tropicais, SP-
Formato: dc.format487-495-
Idioma: dc.languageen-
Relação: dc.relationRevista Brasileira de Engenharia Agricola e Ambiental-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectdegraded pasture-
Palavras-chave: dc.subjectIpomoea batatas (L.) Lam-
Palavras-chave: dc.subjectreducing sugars-
Palavras-chave: dc.subjectsandy soil-
Palavras-chave: dc.subjectstarch-
Título: dc.titleSweet potato yield and quality as a function of phosphorus fertilization in different soils-
Título: dc.titleProdutividade e qualidade da batata-doce em função da adubação fosfatada em diferentes solos-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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