| Registro completo |
| Provedor de dados: |
Ciência e Agrotecnologia
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| País: |
Brazil
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| Título: |
Co-inoculation with diazotrophic bacteria in soybeans associated to urea topdressing
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| Autores: |
Fipke,Glauber Monçon
Conceição,Gerusa Massuquini
Grando,Luiz Fernando Teleken
Ludwig,Rodrigo Luiz
Nunes,Ubirajara Russi
Martin,Thomas Newton
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| Data: |
2016-10-01
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| Ano: |
2016
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| Palavras-chave: |
Azospirillum spp.
Bradyrhizobium spp.
Glicine max (L.) Merr
Nitrogen.
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| Resumo: |
ABSTRACT Increased grain yield can be obtained via an interaction between plants and growth-promoting microorganisms. The Bradyrhizobium spp. are capable of fixing atmospheric nitrogen in soybeans [Glycine max (L.) Merril], and Azospirillum spp. induce the synthesis of phytohormones. The aim of this study was to evaluate inoculation with Bradyrhizobium and co-inoculation with Bradyrhizobium + Azospirillum brasilense in soybeans in combination with the application a topdressing of 0, 75 or 150 kg of N ha-1 of urea during the reproductive stage. Three soybean cultivars (BMX Ativa, TEC 6029 and BMX Potência), were tested in field experiments in Santa Maria, RS, Brazil, during two agricultural years (2013/2014 and 2014/2015) and two sowing times. Morphological, nodulation and yield components were evaluated. Co-inoculation increased the grain yield by 240 kg ha-1 compared with conventional inoculation. When co-inoculated, cultivars BMX Ativa, TEC 6029 and BMX Potência showed increased grain yields of 6, 4 and 12%, respectively. The application of 150 kg ha-1 of N as a topdressing increased the grain yield by 300 kg ha-1 in the co-inoculated cultivars TEC 6029 and BMX Potência, but without a financial return. When inoculated only with Bradyrhizobium, the cultivars did not respond positively to the application of urea.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000500522
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| Editor: |
Editora da Universidade Federal de Lavras
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| Relação: |
10.1590/1413-70542016405001316
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| Formato: |
text/html
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| Fonte: |
Ciência e Agrotecnologia v.40 n.5 2016
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| Direitos: |
info:eu-repo/semantics/openAccess
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