2004
DOI: 10.1016/j.geoderma.2004.03.002
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Influence of compost on soil organic matter quality under tropical conditions

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Cited by 142 publications
(76 citation statements)
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“…Residual effect of applied fertilization clearly increased this parameter value. Increasing value of absorbance ratio 4/6 may evidence a marked decrease in the degree of humic acids particles or greater aliphatisation and higher number of functional groups [4]. Also Pedra et al [21], using compost produced from municipal wastes and anaerobically stabilized sludge for fertilization, demonstrated an increase in the value of absorbance coefficient A4/6, associating the changes of the discussed parameter with diminishing the condensation degree of humic acid particles and greater aliphatisation.…”
Section: Resultsmentioning
confidence: 95%
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“…Residual effect of applied fertilization clearly increased this parameter value. Increasing value of absorbance ratio 4/6 may evidence a marked decrease in the degree of humic acids particles or greater aliphatisation and higher number of functional groups [4]. Also Pedra et al [21], using compost produced from municipal wastes and anaerobically stabilized sludge for fertilization, demonstrated an increase in the value of absorbance coefficient A4/6, associating the changes of the discussed parameter with diminishing the condensation degree of humic acid particles and greater aliphatisation.…”
Section: Resultsmentioning
confidence: 95%
“…Zukowska et al [20] obtained similar results. According to Rivero et al [4] significant changes in the value of discussed parameter might have been caused by bigger doses of the applied organic materials. It should be also noted that under conditions of the discussed experiment a monoculture cultivation of wheat was conducted, which might have significantly affected the value of Cha:Cfa ratio.…”
Section: Resultsmentioning
confidence: 99%
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“…Essa relação não foi significativamente diferente entre os tratamentos com EA e AM (Tabela 6). Segundo Rivero et al (2004), ácidos fúlvicos são mais solúveis e reativos que os ácidos húmicos. Nesse ensaio, essa relação indica que a qualidade da matéria orgânica do EA e AM é melhor que a do CM, de forma que o C-AF predomina sobre o C-AH.…”
Section: Ensaio Conduzido No Latossolounclassified
“…Com o avanço da humificação ocorre a policondensação e a conjugação de estruturas insaturadas nos AH (Piccolo, 2001). Grupamentos fenólicos formados durante o processo de decomposição da matéria orgânica são convertidos em quinonas, via reações de oxidação, as quais são precursoras de radicais livres do tipo semiquinonas nos AH (Milori et al, 2002;Budziak et al, 2004;Rivero et al, 2004), que se estabilizam com o avanço da humificação.…”
Section: Introductionunclassified