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The Impact Ground Phonolite Rock's Potassium Solubilization in Tropical Soil Depends on the Cultivated Forage Species.
da Rocha Neto, Alaor Ribeiro; de Mello Prado, Renato; da Cruz, Mara Cristina Pessôa.
Afiliação
  • da Rocha Neto AR; Department of Soils and Fertilizers, Faculdade de Ciência Agrárias e Veterinárias, São Paulo State University (UNESP), Campus Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal 14884-900, Brazil.
  • de Mello Prado R; Department of Soils and Fertilizers, Faculdade de Ciência Agrárias e Veterinárias, São Paulo State University (UNESP), Campus Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal 14884-900, Brazil.
  • da Cruz MCP; Department of Soils and Fertilizers, Faculdade de Ciência Agrárias e Veterinárias, São Paulo State University (UNESP), Campus Jaboticabal, Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal 14884-900, Brazil.
Plants (Basel) ; 13(2)2024 Jan 11.
Article em En | MEDLINE | ID: mdl-38256753
ABSTRACT
Cover crops can be used to accelerate the solubilization process of low-solubility fertilizers; thus, the aim of this study was to evaluate the potential of grasses in solubilizing potassium from phonolite rock powder. With a 2 × 5 factorial scheme, two doses of phonolite rock powder, equivalent to 0 and 8 t ha-1, were combined with four grass species (Urochloa ruziziensis, U. decumbens, U. humidicola, and Andropogon gayanus), besides a control treatment without any cover crop. The dry matter production of the aerial parts of the plants was evaluated at days 40 and 70 post-emergence, and then the concentration of potassium in the plants and the soil was evaluated (exchangeable, non-exchangeable, structural, and total potassium contents). In the soil, the phonolitic rock powder increased the exchangeable, non-exchangeable, structural, and total K contents, favoring the absorption of K and the production of the dry mass of the three Urochloa, but U. decumbens stood out because it promoted greater availability of K in the system compared to the cultivation of other plant species. This research proposes the inclusion of U. decumbens in production systems that receive phonolitic rock, constituting a sustainable strategy to improve its agronomic efficiency.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Plants (Basel) Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Plants (Basel) Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça