Figure 3
From: Lignin and cellulose dynamics with straw incorporation in two contrasting cropping soils
Dynamics of lignin proportion in soil organic matter (means ± SE, n = 4). 04/2000, the time before the field experiment started; 23/04/2013, the day before straw incorporation in 2013. Different Greek letters indicate significant difference among treatments at each sampling time at P < 0.05 level (according to one-way-ANOVA and LSD test).
