J. Kimetu - International Biochar Initiative

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100 C recovery in highly degraded soils9083.8%of added d C found in soil)Reco overy (%807060504030201023.7%0Calculated using δ 13 CBiocharTithoniaRepeated application for 3 seasons over 2 year period (n = 3)
Absolute SO OC change(mg g -1 )600.0500.0400.0300.0200.0100.0Stable (Organo-mineral) fractionStabilized (Intra-aggregate) fractionLabile (Free light) fractionGreater proportion pof C in stablefractions per unit Crespired withbiochar than withtithonia0.0-100.0-200.0Tithonia Biochar Tithonia Biochar Tithonia Biochar5 20 105 n = 1; pooled sampleTime since conversion (years)from 3 replicate farms
Page 1 and 2: Kimetu JM, Lehmann J, Ngoze SO, Mug
Page 3 and 4: Decline in soil C stocks with conti
Page 5: CO 2 -C loss from soil surface2500C
Page 9 and 10: FTIRBiocharTithoniaControlLabile (F
Page 11 and 12: portion(%)Relati ive pro108Increase
Page 13 and 14: Interactions with minerals10 μmLeh
Page 15 and 16: Remaining questions:- Why is biocha
Page 17: you all

J. Kimetu - International Biochar Initiative

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