… This study evaluated the effects of a long-term notillage chronosequence in a Brazilian
Oxisol on (i) SOC been observed for the 0- to 10-cm layer (Lal, 1976; Sá, 1993, p. 96; Resck,
1998; Bayer et al., 2000b). … Information about SOC sequestration pocropland by plowing
to a 20-cm depth, and then tilling twice tential in a no-tillage chronosequence is rarely
available, … Aggregate and soil organic matter dynamics under conventional and no-tillage
systems. Soil ural abundance. Soil Sci. …

Amounts and rates of C sequestration under no‐tillage are not known for a major ecological
region of south Brazil. These were assessed in a Brazilian Oxisol under a plow and no‐
tillage chronosequence located in Paraná State. The chronosequence consisted of six
treatments:(i) native field (NF);(ii) 1‐yr plow conversion of native field to cropland (PNF‐
1);(iii) no‐tillage for 10 yr (NT‐10);(iv) no‐tillage for 20 yr (NT‐20);(v) no‐tillage for 22 yr (NT‐
22); and (vi) conventional tillage for 22 yr (CT‐22). Soil samples were collected from five …