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| Silva,Paulo Regis Ferreira da; Strieder,Mércio Luiz; Coser,Rúbia Patrícia da Silva; Rambo,Lisandro; Sangoi,Luís; Argenta,Gilber; Forsthofer,Everton Leonardo; Silva,Adriano Alves da. |
| Physiological changes incorporated into current maize hybrids suggest the occurrence of modifications in the nitrogen uptake dynamics, improving plant ability to uptake N during grain filling. This may justify late N side-dressing whenever environmental constraints prevent adequate nitrogen supply during crops vegetative development. This study evaluates effects of nitrogen fertilization at booting and silking on grain yield and kernel crude protein contents of commercial maize hybrids. Two experiments were set up in Eldorado do Sul, RS, during the 2001/2002 and 2002/2003 growing seasons. In 2001/2002, treatments were composed of two hybrids (Agroceres 303 and Pioneer 32R21), three nitrogen rates applied during maize vegetative development (30, 80 and 130... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Nitrogen; Fertilization timing; Productivity. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000500014 |
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