2015
DOI: 10.1590/01000683rbcs20140177
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Organic Carbon Contents and Stocks in Particle Size Fractions of a Typic Hapludox Fertilized With Pig Slurry and Soluble Fertilizer

Abstract: the use of pig slurry (Ps) as fertilizer can affect the soil quality and increase total stocks of soil organic carbon (tOC). However, the effects of Ps on tOC amount and forms in the soil are not fully understood, particularly in areas under no-tillage (nt). the purpose of this study was to determine tOC contents and stocks in the particulate (POC) and mineral-associated C fractions (MaC) of an Oxisol after nine years of maize-oat rotation under nt, with annual applications of Ps, soluble fertilizer and combin… Show more

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Cited by 14 publications
(13 citation statements)
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“…It is estimated that 16,243,286 tons of poultry litter are produced annually in the country (Schneider et al, 2012), which can provide numerous benefits to soil physical, chemical, and biological properties if used accordingly to technical criteria (Hirzel et al, 2007;Cassity-Duffey et al, 2015;Mafra et al, 2015). Using N fertilizers with urease and nitrification inhibitors could also boost the content of available N in the soil and, consequently, increase nutrient recovery efficiency by providing a better balance between the N mineralization and nitrification processes (Muller et al, 2011).…”
Section: Introductionmentioning
confidence: 99%
“…It is estimated that 16,243,286 tons of poultry litter are produced annually in the country (Schneider et al, 2012), which can provide numerous benefits to soil physical, chemical, and biological properties if used accordingly to technical criteria (Hirzel et al, 2007;Cassity-Duffey et al, 2015;Mafra et al, 2015). Using N fertilizers with urease and nitrification inhibitors could also boost the content of available N in the soil and, consequently, increase nutrient recovery efficiency by providing a better balance between the N mineralization and nitrification processes (Muller et al, 2011).…”
Section: Introductionmentioning
confidence: 99%
“…However, this increase was focused on the shallowest 0-5 cm layer, with no changes observed in the layers of 10-15, 15-20 and 20-25 cm. Increases in organic C induced by the use of LSM has been reported in the literature (Lourenzi et al, 2011;Brunetto et al, 2012;Mafra et al, 2015), especially in studies on pastures (Oliveira et al, 2017). In general, these soil organic C increases in areas under LSM application can be attributed to two aspects: i) direct organic C inputs by LSM, despite the low solids concentration of this manure (Table 1); ii) indirect contribution through nutrient inputs, especially N (Table 1), which enhances soil fertility, sustaining higher above-and below ground biomass yields, and consequently increase soil organic C by the decomposition of roots and crop residues Oliveira et al, 2017).…”
Section: Organic C and Attributes Of Soil Aciditymentioning
confidence: 90%
“…The choice of how, when, and at what dose fertilizers should be applied to soils allows of variations in the OC accumulation (Mafra et al, 2015). Criteria for the method of fertilization should therefore be adopted, in order to enable an increased OC, and a reduced OC decomposition rates in the soil (Sá et al, 2014).…”
Section: Introductionmentioning
confidence: 99%