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Production, carbon and nitrogen in stover fractions of corn ( Zea mays L.) in response to cultivar development Ciência e Agrotecnologia
Barbosa,Julierme Zimmer; Ferreira,Carla Fernanda; Santos,Nicolas Zendonadi dos; Motta,Antonio Carlos Vargas; Prior,Stephen; Gabardo,Juarez.
ABSTRACT Changes in quantity and quality of corn crop stover can have a large impact on soil conservation and soil carbon (C) sequestration over large areas. The aim of this study was to evaluate changes in production, concentration and amount of C and nitrogen (N) in corn stover fractions due to cultivar development. Two field experiments were conducted in the city of Rolândia (Paraná State, Brazil) using ten cultivars representing five technological levels: single cross hybrids, double or triple hybrids, commercial varieties, and creole cultivars. Plant heights and stalk, leaf, cob, husk and tassel weights were determined at final harvest. Elemental C and N analyses were performed in triplicate for each stover fraction. In general, the creole cultivars...
Tipo: Info:eu-repo/semantics/article Palavras-chave: C/N ratio; Genetic breeding; No-tillage system; Integrated crop-livestock systems; Renewable energy.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000600665
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