Five points were randomly taken at different locations of the film.
Soil samples were randomly taken from 0 to 15 cm depth using soil auger before the study.
The analytic assays were performed every day, and at least 4 wells were randomly taken into examination each time.
Five disturbed and five undisturbed soil samples were randomly taken at a soil depth of 0 10 and 10 20 cm in each plot.
Samples were randomly taken from whole area of newly installed pumps to investigate the different water quality parameters in the groundwater.
To register the Raman spectra of the polychrome sculpture samples, at least ten different points in each sample were randomly taken under the same conditions.
Three pictures of each magnification were randomly taken for each sample (50,100 and 200 times referent to 50x, 100x and 200x respectively).
Within each quadrat, five (5) cocoa trees were randomly selected, where five (5) matured and ripped cocoa pods were randomly taken and kept in labelled bags.
Biweekly compost samples were randomly taken from the middle portion of the bins to determine pH, electrical conductivity (EC) and microbial counts.
All samples (2 × 2 × 2 samples) were randomly taken at day 0, 10, 20, 30 and 40 for the determination of astaxanthin content and PV as previously described.
Plant samples with intact roots were randomly taken from each treatment 65 days after sowing (DAS) and washed with running distilled water to remove soil particles that adhered on the roots.
