Silicon amendment enhances agronomic efficiency of nitrogen fertilization in maize and wheat crops under tropical conditions

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversity of Minnesota (UMN)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorGalindo, Fernando Shintate-
Autor(es): dc.creatorPagliari, Paulo Humberto-
Autor(es): dc.creatorRodrigues, Willian Lima-
Autor(es): dc.creatorFernandes, Guilherme Carlos-
Autor(es): dc.creatorBoleta, Eduardo Henrique Marcandalli-
Autor(es): dc.creatorSantini, José Mateus Kondo-
Autor(es): dc.creatorJalal, Arshad-
Autor(es): dc.creatorBuzetti, Salatiér-
Autor(es): dc.creatorLavres, José-
Autor(es): dc.creatorTeixeira Filho, Marcelo Carvalho Minhoto-
Data de aceite: dc.date.accessioned2025-08-21T17:15:38Z-
Data de disponibilização: dc.date.available2025-08-21T17:15:38Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2021-07-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/plants10071329-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233202-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233202-
Descrição: dc.descriptionSustainable management strategies are needed to improve agronomic efficiency and cereal yield production under harsh abiotic climatic conditions such as in tropical Savannah. Under these environments, field-grown crops are usually exposed to drought and high temperature conditions. Silicon (Si) application could be a useful and sustainable strategy to enhance agronomic N use efficiency, leading to better cereal development. This study was developed to explore the effect of Si application as a soil amendment source (Ca and Mg silicate) associated with N levels applied in a side-dressing (control, low, medium and high N levels) on maize and wheat development, N uptake, agronomic efficiency and grain yield. The field experiments were carried out during four cropping seasons, using two soil amendment sources (Ca and Mg silicate and dolomitic limestone) and four N levels (0, 50, 100 and 200 kg N ha−1). The following evaluations were performed in maize and wheat crops: the shoots and roots biomass, total N, N-NO3−, N-NH4+ and Si accumulation in the shoots, roots and grain tissue, leaf chlorophyll index, grain yield and agronomic efficiency. The silicon amendment application enhanced leaf chlorophyll index, agronomic efficiency and N-uptake in maize and wheat plants, benefiting shoots and roots development and leading to a higher grain yield (an increase of 5.2 and 7.6%, respectively). It would be possible to reduce N fertilization in maize from 185–180 to 100 kg N ha−1 while maintaining similar grain yield with Si application. Additionally, Si application would reduce N fertilization in wheat from 195–200 to 100 kg N ha−1. Silicon application could be a key technology for improving plant-soil N-management, especially in Si accumulator crops, leading to a more sustainable cereal production under tropical conditions.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCenter for Nuclear Energy in Agriculture (CENA) University of São Paulo (USP)-
Descrição: dc.descriptionDepartment of Soil Water and Climate Southwest Research and Outreach Center (SWROC) University of Minnesota (UMN)-
Descrição: dc.descriptionDepartment of Plant Health Rural Engineering and Soils (DEFERS) São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Plant Health Rural Engineering and Soils (DEFERS) São Paulo State University (UNESP)-
Descrição: dc.descriptionFAPESP: 2017/06002-6-
Descrição: dc.descriptionCNPq: 312359/2017-9-
Idioma: dc.languageen-
Relação: dc.relationPlants-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCa and Mg silicate-
Palavras-chave: dc.subjectImproved nitrogen management-
Palavras-chave: dc.subjectSilicon application-
Palavras-chave: dc.subjectSustainable crop production-
Palavras-chave: dc.subjectTropical agriculture-
Título: dc.titleSilicon amendment enhances agronomic efficiency of nitrogen fertilization in maize and wheat crops under tropical conditions-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.