Effecting digger machine (john deere type)‎, soil moisture content and tractor speeds on some qualitative characteristics of potato.

الملخص EN

The effect of soil moisture and speed of tractor on potato (Accent ) cultivar was studied based on some qualitative characteristics of Potato.

One type of digger tubers machine ( John Deere) were tested under three speeds of tractor (2.

74, 4.

06 and 5.

21 Km.

hr).

The experiments were conducted in a factorial experiment under complete randomized design with three replications.

The results showed that the 12-14% soil moisture was significantly better than 14-16% soil moisture in all studied conditions.

, for 12-14% soil moisture, the machine productivity, fuel consumption, , digger machine efficiency lifting percentage, qualitative loss and quantitative loss were recorded 5.

185 t h-1, 7.

096 L.

ha-1, 84.

491 %, 93.

917%, 19.

886%, and 3.

733%, respectively while there were 4.

522 t h-1, 8.

343 L.

ha-1, 82.

088 %, 92.

121%, 21.

181% and 4.

079% respectively under the same operating conditions for 14-16% soil moisture.

The speed of tractor 2.

74Km.

hr-1 was significantly superr to the other two levels of 4.

06 and 5.

21 Km.

hr-1 in all studied conditions.