Fig. 6

Experimental tractors and test field during plow tillage: (a) 46 kW tractor; (b) 55 kW tractor; (c) test field for 46 kW tractor; (d) test field for 55 kW tractor.

Experimental tractors and test field during plow tillage: (a) 46 kW tractor; (b) 55 kW tractor; (c) test field for 46 kW tractor; (d) test field for 55 kW tractor.