The Scientific World Journal / 2014 / Article / Tab 3

Research Article

Factors Controlling Carbon Metabolism and Humification in Different Soil Agroecosystems

Table 3

Pyrolytic indices of mineralization (N/O) and humification (B/E3). For each site, different letters indicate statistically different values among the treatments ( < 0.05).

Whole soilAHC extract
N/OB/E3N/OB/E3

Abanilla-SpainS-C1.49a0.547b1.21a0.581b
S-WOF1.23b0.827a1.16a0.732a
Alberese-ItalyI-CA0.85b0.645b0.93b0.796b
I-BA0.96a0.738a1.13a0.977a
Puch-GermanyP-CA1.39a0.930a1.28a0973a
P-IT1.04c0.768b1.13b0.910b
P-C1.25b0.765b1.31a0.911b

N/O, furfural/pyrrole; B/E3, benzene/toluene; AHC, active humic carbon.
C, control; WOF, waste organic fraction addition; CA, conventional agriculture; BA, organic agriculture; IT, intensive tillage. Data reported as mean values of T1 (initial sampling time) and T2 (one year later), coefficient of variation of the two sampling times ranging from 2 to 10%.