Monitoring and evaluation of need for nitrogen fertilizer topdressing for maize leaf chlorophyll readings and the relationship with grain yield

The study was carried out for two years in maize in succession to the wheat using no tillage system in a distroferric Red Latosol (Hapludox). Methods of management nitrogen fertilizer (120 kg ha-1) with ammonium sulphate were studied; the fertilizer was applied in maize sowing or in maize topdressin...

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Bibliographic Details
Main Authors: Maria Anita Gonçalves da Silva, Antonio Saraiva Muniz, Anny Rosi Mannigel, Simone Maria Altoé Porto, Marlene Estevão Marchetti, Antonio Nolla, Ivan Grannemann
Format: Article
Language:English
Published: Instituto de Tecnologia do Paraná (Tecpar) 2011-08-01
Series:Brazilian Archives of Biology and Technology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000400004