| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Solo
|
| País: |
Brazil
|
| Título: |
Agronomic and Economic Efficiency of Common-Bean Inoculation with Rhizobia and Mineral Nitrogen Fertilization
|
| Autores: |
Soares,Bruno Lima
Ferreira,Paulo Ademar Avelar
Rufini,Márcia
Martins,Fábio Aurélio Dias
Oliveira,Dâmiany Pádua
Reis,Ricardo Pereira
Andrade,Messias José Bastos de
Moreira,Fatima Maria de Souza
|
| Data: |
2016-01-01
|
| Ano: |
2016
|
| Palavras-chave: |
Phaseolus vulgaris
Nitrogen fixation
No-till
Conventional tillage
|
| Resumo: |
ABSTRACT Management of biological nitrogen fixation in common bean still requires improvement. The objective of this study was to verify the compatibility of nitrogen fertilization with biological N2 fixation to increase common bean yield and profitability. Four field experiments were performed in four municipalities of Minas Gerais, Brazil, during the 2009 and 2010 winter crop season. The 2009 crop experiments were set up under a no-till system and the 2010 crop was conducted using conventional tillage. A randomized block experimental design was used with four replications and seven treatments combining application rates of mineral N (at sowing and/or topdressing) and seed inoculation with Rhizobium tropici strain CIAT899. Inoculation with 20 kg ha-1 N-urea at sowing and seed inoculation does not interfere with nodule dry matter and promotes yield comparable to that observed with 80 kg ha-1 N-urea with economic profitability in both no-till and conventional tillage systems. These results show the possibility of economic savings with respect to N fertilizers, but also a significant ecological contribution by avoiding problems associated with misuse of these fertilizers, such as eutrophication of waterways and denitrification.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100416
|
| Editor: |
Sociedade Brasileira de Ciência do Solo
|
| Relação: |
10.1590/18069657rbcs20150235
|
| Formato: |
text/html
|
| Fonte: |
Revista Brasileira de Ciência do Solo v.40 2016
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
