Nepheline syenite and phonolite as alternative potassium sources for maize

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorMineragro Pesquisa e Desenvolvimento-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUSDA-NRCS Ecological Sciences Division-
Autor(es): dc.contributorPolo Bionaturalistico-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorNogueira, Thiago Assis Rodrigues [UNESP]-
Autor(es): dc.creatorMiranda, Bruno Gasparoti [UNESP]-
Autor(es): dc.creatorJalal, Arshad [UNESP]-
Autor(es): dc.creatorLessa, Luís Gustavo Frediani [UNESP]-
Autor(es): dc.creatorFilho, Marcelo Carvalho Minhoto Teixeira [UNESP]-
Autor(es): dc.creatorMarcante, Nericlenes Chaves-
Autor(es): dc.creatorAbreu-Junior, Cassio Hamilton-
Autor(es): dc.creatorJani, Arun Dilipkumar-
Autor(es): dc.creatorCapra, Gian Franco-
Autor(es): dc.creatorMoreira, Adônis-
Autor(es): dc.creatorMartins, Éder de Souza-
Data de aceite: dc.date.accessioned2022-08-04T22:10:37Z-
Data de disponibilização: dc.date.available2022-08-04T22:10:37Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/agronomy11071385-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/222034-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/222034-
Descrição: dc.descriptionSome silicate rocks are a rich source of potassium (K), with the possibility for use in agriculture. The present study aimed to evaluate the agronomic efficiency index (AEI) of nepheline syenite (NS) and phonolite (PN) rocks in comparison with potassium chloride (KCl) as a K source in maize production. An experiment was conducted in a greenhouse in Ilha Solteira, São Paulo, Brazil. A maize hybrid was grown in 8 L pots filled with 6 kg of soil with a low K concentration and contrasting physical attributes (medium and sandy texture). A completely randomized design in a 3 × 6 factorial scheme was used, consisting of three K sources (NS, PN, and KCl) and six rates (0, 50, 100, 150, 200, and 400 mg kg−1) with four replications. All plants were harvested 45 days after emergence to evaluate biomass production, macronutrient (N, P, K, Ca, Mg, and S) concentration and uptake, stem diameter, and leaf chlorophyll index. After crop harvest, soil was collected for further chemical evaluation, which included organic matter (OM), pH, cation exchange capacity (CEC), H+Al, Al, sum of bases (SB), base saturation (BS), P, K, Ca, Mg, and S. In addition, AEI of NS and PN were also verified in relation to KCl. The application of NS and PN had a similar effect on soil chemical attributes (MO, pH, SB, CEC, and BS) as well as on the concentrations of K, Ca, Mg, and S, in both soils. The increase in NS and PN rates provided linear growth of shoot dry matter. Leaf macronutrient concentrations were similar for NS and PN compared to KCl. All three K sources (NS, PN, and KCl) increased K accumulation in maize plants. Maize treated with KCl had the largest AEI, followed by PN and NS. However, the results indicated similar AEI with both rocks as a K source for maize, especially with application of the highest K rates. This research demonstrated the efficiency of NS and PN as alternative K sources for maize.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionSchool of Agricultural and Veterinarian Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionSchool of Engineering São Paulo State University (UNESP)-
Descrição: dc.descriptionCollege of Agricultural Science São Paulo State University (UNESP)-
Descrição: dc.descriptionMineragro Pesquisa e Desenvolvimento-
Descrição: dc.descriptionCenter for Nuclear Energy in Agriculture (CENA) Universidade de São Paulo (USP)-
Descrição: dc.descriptionUSDA-NRCS Ecological Sciences Division-
Descrição: dc.descriptionDipartimento di Architettura Design e Urbanistica Università degli Studi di Sassari Polo Bionaturalistico, Via Piandanna No. 4-
Descrição: dc.descriptionEmbrapa Soja-
Descrição: dc.descriptionEmbrapa Cerrados-
Descrição: dc.descriptionSchool of Agricultural and Veterinarian Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionSchool of Engineering São Paulo State University (UNESP)-
Descrição: dc.descriptionCollege of Agricultural Science São Paulo State University (UNESP)-
Descrição: dc.descriptionCAPES: 88881.593505/2020-01-
Idioma: dc.languageen-
Relação: dc.relationAgronomy-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAgronomic efficiency index-
Palavras-chave: dc.subjectIgneous rock-
Palavras-chave: dc.subjectRock powder-
Palavras-chave: dc.subjectZea mays L-
Título: dc.titleNepheline syenite and phonolite as alternative potassium sources for maize-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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