On-Stream Soil Density Measuring

The article is focused on the determination of the nonlinear relationships between soil compaction, density, and water content. It was found that these properties can be described by the second-order models and used for improving devices for the on-stream soil density measuring. The models for determining the density of loamy soil (at a water content of 20%) in the range from 0.9 to 1.6 g/cm3 with an extremum of 1.35 g/cm3 were improved. A device for the on-stream soil density measuring is proposed. The device operates within the soil compaction range from 0.3 to 1.2 MPa and water content from 10 to 30% at the angle of inclination of the kinematic link  from 15 to 40 degrees. The obtained results can be used in the adaptation of the proposed device for use in precision agriculture.