SOIL RESISTANCE ASSESSMENT FOR SIZING SOIL SAMPLING EQUIPMENT
EVALUAREA REZISTENȚEI SOLULUI PENTRU DIMENSIONAREA ECHIPAMENTELOR DE PRELEVARE PROBE SOL
DOI : https://doi.org/10.35633/inmateh-78-98
Authors
Abstract
This study presents a comprehensive investigation of soil penetration resistance and drilling force requirements across major agricultural soil types in Romania. Field measurements were conducted at multiple locations in the western, southern, and northern regions of the country. Using static cone penetrometry and a mechanized drilling system equipped with a 60 mm diameter drill bit, penetration resistance profiles were characterized to a depth of 30 cm, and the corresponding power requirements for soil sampling operations were quantified. The results revealed significant differences in penetration resistance among soil types (p < 0.05), with values ranging from 35 to 2387 kPa. Strong correlations were identified between cone penetration resistance (qc) and drilling torque requirements. The average power demand ranged from 297 to 1861 W, depending on soil type and moisture conditions. These findings provide practical data for equipment sizing and power requirement estimation in precision agriculture applications and contribute to sustainable soil resource management under Romanian pedoclimatic conditions.
Abstract in Romanian



