2016
DOI: 10.1590/1413-70542016406020316
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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 v… Show more

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Cited by 8 publications
(6 citation statements)
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“…3b) is due to the relatively high amount of lignified stalks of maize crops; this lignified tissue is relatively resistant to the action and penetration of decomposing microorganisms, which hinders its decomposition. The greatest concentrations of carbon in maize plants are usually found in the ears and stems, followed by the leaves, tassels and husks; in practical terms, the high C/N ratio of the biomass ensures the persistence of the soil cover for an extended period of time (Barbosa et al ., 2016).…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…3b) is due to the relatively high amount of lignified stalks of maize crops; this lignified tissue is relatively resistant to the action and penetration of decomposing microorganisms, which hinders its decomposition. The greatest concentrations of carbon in maize plants are usually found in the ears and stems, followed by the leaves, tassels and husks; in practical terms, the high C/N ratio of the biomass ensures the persistence of the soil cover for an extended period of time (Barbosa et al ., 2016).…”
Section: Discussionmentioning
confidence: 99%
“…In the current study, compared with the forage grasses, maize had a longer half-life for potassium, calcium, magnesium and sulphur. The stalk formation process of this species also contributes to the relatively high lignification of tissues, hindering nutrient cycling (Barbosa et al ., 2016).…”
Section: Discussionmentioning
confidence: 99%
“…More lignin is concentrated in these plant structures, giving this material greater resistance to the action and penetration of decomposing microorganisms, which hinders its decomposition. The highest concentrations of carbon among the fractions of the maize plant are usually found in the ears and shanks, followed by leaves, tassels and husks (Barbosa et al ., 2016). Dias et al .…”
Section: Discussionmentioning
confidence: 99%
“…Lists of ecophysiological parameters used in this research are provided in Table A1. We used EPC lists for Grassland, Cropland and Deciduous forest published in [34], and adjusted a number of parameters according to Dalrymple and Dwyer (1967) [63], Barbosa et al (2016) [64], Cleveland et al (1999) [65] and Butler et al (2001) [66] (Table A1). For consistency with LULUCF categories used in the National Inventory Report [59] A1).…”
Section: The Biome-bgcmuso Model-parameterisation and Input Data Collectionmentioning
confidence: 99%