Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managements

Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managements

<abstract language="eng">This work evaluated the chemical quality of organic matter (OM) of a Brazilian Oxisol cultivated with coffee plants, under organic and conventional managements. Total organic C (TOC), light fraction C (LF-C) and C in humic (HA-C) and fulvic (FA-C) acids fract...

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Main Authors: Antônio Claret Oliveira Júnior, Carlos Alberto Silva, Nilton Curi, Luiz Roberto Guimarães Guilherme, Otacílio José Passos Rangel
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2008-01-01
Series:Química Nova
Subjects:
light fraction
humic substances
stratification ratio
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000700026
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spelling doaj-e2d3dc294558467983e7953aa5dbca3c2020-11-24T21:02:12ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642008-01-013171733173710.1590/S0100-40422008000700026Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managementsAntônio Claret Oliveira JúniorCarlos Alberto SilvaNilton CuriLuiz Roberto Guimarães GuilhermeOtacílio José Passos Rangel<abstract language="eng">This work evaluated the chemical quality of organic matter (OM) of a Brazilian Oxisol cultivated with coffee plants, under organic and conventional managements. Total organic C (TOC), light fraction C (LF-C) and C in humic (HA-C) and fulvic (FA-C) acids fractions was measured. Amongst the evaluated indexes, TOC and LF-C discriminated better OM attributes as a function of management. The stratification ratio (TOC5-10cm/TOC10-20cm) did not show differences between the systems studied. The organic system can contribute to the sustainability of coffee plantations in Brazil, because it maintains the chemical attributes of OM closer to the indexes verified under forest conditions.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000700026light fractionhumic substancesstratification ratio
collection DOAJ
language English
format Article
sources DOAJ
author Antônio Claret Oliveira Júnior
Carlos Alberto Silva
Nilton Curi
Luiz Roberto Guimarães Guilherme
Otacílio José Passos Rangel
spellingShingle Antônio Claret Oliveira Júnior
Carlos Alberto Silva
Nilton Curi
Luiz Roberto Guimarães Guilherme
Otacílio José Passos Rangel
Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managements
Química Nova
light fraction
humic substances
stratification ratio
author_facet Antônio Claret Oliveira Júnior
Carlos Alberto Silva
Nilton Curi
Luiz Roberto Guimarães Guilherme
Otacílio José Passos Rangel
author_sort Antônio Claret Oliveira Júnior
title Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managements
title_short Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managements
title_full Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managements
title_fullStr Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managements
title_full_unstemmed Indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do Rio das Mortes sob manejos diferenciais de cafeeiro Chemical indicators of the quality of organic matter of soil from the Rio das Mortes watershed under different coffee plant managements
title_sort indicadores químicos de qualidade da matéria orgânica de solo da sub-bacia do rio das mortes sob manejos diferenciais de cafeeiro chemical indicators of the quality of organic matter of soil from the rio das mortes watershed under different coffee plant managements
publisher Sociedade Brasileira de Química
series Química Nova
issn 0100-4042
1678-7064
publishDate 2008-01-01
description <abstract language="eng">This work evaluated the chemical quality of organic matter (OM) of a Brazilian Oxisol cultivated with coffee plants, under organic and conventional managements. Total organic C (TOC), light fraction C (LF-C) and C in humic (HA-C) and fulvic (FA-C) acids fractions was measured. Amongst the evaluated indexes, TOC and LF-C discriminated better OM attributes as a function of management. The stratification ratio (TOC5-10cm/TOC10-20cm) did not show differences between the systems studied. The organic system can contribute to the sustainability of coffee plantations in Brazil, because it maintains the chemical attributes of OM closer to the indexes verified under forest conditions.
topic light fraction
humic substances
stratification ratio
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000700026
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AT carlosalbertosilva indicadoresquimicosdequalidadedamateriaorganicadesolodasubbaciadoriodasmortessobmanejosdiferenciaisdecafeeirochemicalindicatorsofthequalityoforganicmatterofsoilfromtheriodasmorteswatershedunderdifferentcoffeeplantmanagements
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