Table 1 Fundamental elements of sandy soil.

From: Calibration of contact parameters of sandy soil for planting tiger nut based on non-linear tools

Size distribution/(%)

Density/(g/cm−3)

Moisture/(%)

 > 0.5 mm

(0.25–0.5] mm

 ≤ 0.25 mm

0.36

7.45

92.29

2.92

6.4