| Registro completo |
| Provedor de dados: |
REA
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| País: |
Brazil
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| Título: |
Ratoon sugarcane yield integrated drip-irrigation and nitrogen fertilization
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| Autores: |
Uribe,Raúl A. M.
Gava,Glauber J. de C.
Saad,João C. C.
Kölln,Oriel T.
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| Data: |
2013-12-01
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| Ano: |
2013
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| Palavras-chave: |
Fertigation
Nitrogen
Water stress
Sacharum spp
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| Resumo: |
The aim of this study was to compare the use of water and nitrogen on ratoon sugarcane during irrigated and rain-fed conditions, and to assess the production potential of stalks and sugar with different rates of N-fertilizer on the subsurface drip-irrigated management. The experimental design was a randomized block with four replications for each experiment and treatments: (T1) irrigated, 0kg N ha-1; (T2) irrigated, 70kg N ha-1; (T3) irrigated, 140kg N ha-1; (T4) irrigated, 210kg N ha-1; (T5) not irrigated, 0kg N ha-1, and (T6) not irrigated, 140kg N ha-1. Biometric, technological, dry matter and yield variables were analyzed among the treatments. The irrigation system together with the application of N-fertilizer at 140kg ha-1 presented significant differences in dry matter accumulation of shoots, and for the production of stalks and sugar, respectively 94, 105 and 106%, higher when compared to the not irrigated, without N-fertilizer (T5). There was a positive and synergistic effect of irrigation with N-fertilizer on the productivity of stalks and sugar. Ratoon sugarcane irrigated with subsurface dripping had the highest yield (22Mg ha-1 of sugar) with the dosage of 140kg ha-1 N.
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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=S0100-69162013000600005
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| Editor: |
Associação Brasileira de Engenharia Agrícola
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| Relação: |
10.1590/S0100-69162013000600005
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| Formato: |
text/html
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| Fonte: |
Engenharia Agrícola v.33 n.6 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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