Impact of tire pressure, operating speed, and plowing depth on tractor traction performance under cotton‑growing conditions in the namangan region

In this work, the influence of the main technological parameters–tire pressure (0.12, 0.17, and 0.22 MPa), travel speed (1.8, 8.6, and 17.4 km/h), and cultivation depth (10–50 cm)–on the traction force of the MTZ-80X wheeled tractor under field conditions in the Namangan Region was investigated. Experiments were conducted on a farmer’s plot in the Uychi District, and the results were analyzed using ANOVA and terrain and spatial analysis in ArcGIS Pro. It was established that cultivation depth is the only statistically significant factor (p < 0.001): maximum traction force occurs at a depth of 30 cm, while at depths of 40–50 cm it sharply falls to 0–3.1 relative units. Tire pressure and travel speed had no significant effect on traction characteristics, and two- and three-factor interactions did not reach statistical significance. These findings are important for optimizing the design of high-clearance specialized tractors and for developing field operating settings for mechanized cotton cultivation.

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