Soil Oxidizable Organic Carbon Fractions under Organic Management with Industrial Residue of Roasted Mate Tea
Most conventional methods for organic C determination aim for the maximum oxidation and recovery of C.However,measures of total C content may not be a sensitive indicator of soil quality changes.Methods that extract preferentially the more labile C allow evaluation in more detail the changes caused by soil organic management practices.This study had the objective to evaluate the oxidizable fractions of soil organic C (F1,F2,F3,F4),under organic management after the addiction of roasted mate tea industrial waste (0,10,20 and 40 t/ha),in incorporation and in coverage,in Eucalyptus benthamii plantation.For the F1,F3 and F4,there were no significant changes in relation to the factors studied,but F2 fraction shows a reduction in relation to applied doses,which suggests an increase in microbial activity.
Eucalyptus plantations Carbon stability Organic wastes
F.B.Pereira R.C.Santos K.C.Lombardi A.N.Dias C.M.B.F.Maia
Universidade Estadual do Centro-Oeste-UNICENTRO,Campus Irati,PR 153,km 7,Riozinho,Irati,Paraná,Brazi Mate Le(a)o-Fernandes Pinheiro Factory,Ivo Le(a)o St.,n° 102,Femandes Pinheiro,Paraná,Brazil,84535-0 Embrapa Forestry,Estrada da Ribeira,km 111,PO Box 319,Colombo,Paraná,Brazil,83411-000
国际会议
the 16th Meeting of the International Humic Substances Society (第十六届国际腐殖物质学会大会(IHSS 16))
杭州
英文
165-167
2012-09-09（万方平台首次上网日期，不代表论文的发表时间）