Image Analysis to Estimate Mulch Residue in Soil

Table 4

Comparison of mulch deterioration by percentage of bare soil area (% of white pixels) ± standard error in binary images obtained by thresholding methods: Otsu (OT), Ridler-Calvard (RC), and local entropy (LE). The areas obtained based on the reference images () are shown in the first column. Mulch materials: biodegradable (BD), polyethylene (PE), and paper (PP).

Mulch^*,**
1
2
3
4
-value	0.0019	0.0001	0.0002	0.3715

Mulch 1: biodegradable (BD). Mulch 2: biodegradable (BD). Mulch 3: polyethylene (PE). Mulch 4: paper (PP).
**100 days after mulch laying. ANOVA and Duncan test, . Different letters in the same column indicate significant differences between soil areas.
*** transformation.