Detalhes bibliográficos
| Ano de defesa: |
2006 |
| Autor(a) principal: |
SILVA, Ranieri Pereira da
 |
| Orientador(a): |
SANTOS, Carolina Etienne de Rosália e Silva |
| Banca de defesa: |
ASSUNÇÃO FILHO, Clodoaldo José da,
BARROS, Maria de Fátima Cavalcanti,
LIRA JÚNIOR, Mário de Andrade |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal Rural de Pernambuco
|
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Ciência do Solo
|
| Departamento: |
Departamento de Agronomia
|
| País: |
Brasil
|
| Palavras-chave em Português: |
|
| Área do conhecimento CNPq: |
|
| Link de acesso: |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5326
|
Resumo: |
A field experiment was conducted using a randomized block design, with four replicate, to evaluate rhizobial inoculation on cowpea [Vigna unguiculata (L.) Walp.] grown on a soil of the “Sertão da Paraíba” (Planossolo). Two native isolates from the soil, three RELARE recommended strains (BR 3267, INPA 3-11B e UFLA 3-84) and an UFRPE selected strain (NFB 700) were inoculated on cowpea cultivar CNCx 409- 11F. Two control treatments were also used: one with mineral nitrogen, and the other without added mineral nitrogen, both uninoculated. Nodulation (nodule number and dry mass), aerial part dry mass, N content and total N and relative efficiency, at 17 days after emergence were evaluated. It was observed significant effect to number and dry matter of nodules, dry matter, total N accumulated and relative efficiency of total N accumulated on shoot dry matter. The results suggest the occurrence of native rhizobial population in soil with effective nitrogen fixation on cowpea. Strains INPA 3-11B, BR 3267 and UFLA 3-84 were more effective on nodulation and nitrogen fixation than native rhizobia and strain NFB 700, when inoculated on cowpea grown in a Planossol of the “Sertão da Paraíba”. Nitrogen fertilization (50 kg ha-1) reducesnodulation and nitrogen fixation on cowpea. |
