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Revista de Ciências Agrárias
Article . 2018 . Peer-reviewed
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Revista de Ciências Agrárias
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Desenvolvimento de Urochloa brizantha adubada com fonolito e inoculada com bactérias diazotróficas solubilizadoras de potássio

Development of Urochloa brizantha fertilized with phonolite and inoculated with potassium solubilizing diazotrophic bacteria
Authors: Miranda, Cássia C. B.; Florentino, Ligiane A.; Rezende, Adauton V. de; Nogueira, Denismar A.; Leite, Rafael F.; Naves, Luciana P.;

Desenvolvimento de Urochloa brizantha adubada com fonolito e inoculada com bactérias diazotróficas solubilizadoras de potássio

Abstract

Objetivou-se analisar a viabilidade de uso do pó da rocha fonolito em Urochloa brizantha cv. Marandu e se a inoculação com bactérias diazotróficas solubilizadoras de potássio (K) contribui para o maior desenvolvimento e características bromatológicas desta forrageira. O experimento foi conduzido em vasos contendo 15 dm3 de solo, durante três períodos de cortes. Foi utilizado o delineamento em blocos casualizados em esquema fatorial e um tratamento adicional (4x3+1), sendo quatro doses do fonolito (100%, 75%, 50% e 25%) e três variáveis inoculantes (UNIFENAS 100-13, UNIFENAS 100-94 e o controle sem inoculação), além do tratamento adicional com cloreto de potássio (KCl), com quatro repetições por tratamento. Na época de cada corte foram avaliados os parâmetros morfológicos e bromatológicos da forrageira. As diferentes doses de fonolito associadas à inoculação com as estirpes bacterianas não conduziram a diferenças significativas nos parâmetros morfológicos, como largura e comprimento de folha, densidade de perfilhos e matéria seca. No entanto, o fonolito promoveu uma melhoria nas características bromatológicas nos parâmetros de fibra em detergente ácido, hemicelulose, digestibilidade da matéria seca, nutrientes digestíveis totais, energia digestível e metabolizável, contribuindo, portanto, para a melhoria no valor nutricional, indicando o potencial de utilização desta rocha silicatada como fonte alternativa ao cloreto de potássio (KCl).

Revista de Ciências Agrárias, vol. 41 n.º 3 (2018)

Keywords

rock dust, forrageiras, forage, inoculation, inoculação, pó de rocha

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Top 10%
Average
Average
Green
gold