Research Article

Measurements of Soil Carbon Dioxide Emissions from Two Maize Agroecosystems at Harvest under Different Tillage Conditions

Figure 6

Comparison between the average daily courses of the CO2 fluxes of one week before (pre) and one week after (post) harvest at the NT site (a) and CT site (b). Vertical bars indicate the standard errors of the means. (CT = conventional tillage site; NT = no-tillage site.) The statistical significance of the differences between the flux daily courses of the two periods in both sites has been reported (for each hour) at the top of each graph ( for ; for ; for , and n.s. for ).
(a)
(b)