| Registro completo |
| Provedor de dados: |
42
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| País: |
Brazil
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| Título: |
Palisadegrass effects on N fertilizer dynamic in intercropping systems with corn
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| Autores: |
ALMEIDA,RODRIGO E.M. DE
OLIVEIRA,SILAS M. DE
LAGO,BRUNO C.
P. JUNIOR,CLOVIS
TRIVELIN,PAULO C.O.
FAVARIN,JOSÉ L.
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| Data: |
2017-09-01
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| Ano: |
2017
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| Palavras-chave: |
15N isotope
Crop-livestock integration
Nitrogen use efficiency
No-tillage
Urochloa spp.
Zea mays.
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| Resumo: |
ABSTRACT Corn grain yield, nitrogen (N) fertilizer efficiency and distribution to corn alone and three forms of corn and palisadegrass (Urochloa spp.) intercropping implantation was investigated. A field experiment with 15N labeling fertilizer was performed in randomized block design. No form of palisadegrass intercropping implantation affected corn grain yield, total N accumulation and N use efficiency (NUE), which were 8.7 t ha-1, 205 kg ha-1 and 37% respectively. The palisadegrass produced on average 1.9 t of dry mass, absorbing a maximum of 6 kg ha-1 or 5.5% of N fertilizer during corn growing. Furthermore, the palisadegrass did not affect N fertilizer distribution in soil-plant system, in which 28.2% was recovered in the soil and 40.4% in the plants (corn + palisadegrass). The results show that for the three intercropping implantation methods the palisadegrass did not compete with corn for N fertilizer.
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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=S0001-37652017000401917
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| Editor: |
Academia Brasileira de Ciências
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| Relação: |
10.1590/0001-3765201720160811
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| Formato: |
text/html
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| Fonte: |
Anais da Academia Brasileira de Ciências v.89 n.3 2017
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| Direitos: |
info:eu-repo/semantics/openAccess
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