? ??????? ???????? ????? ??? ????? ?????? ???????, ??? ??????? ??? ???? ?? ????? ??????? ?? ???????? ??????? ?? ??????????:These early tractors ended up cumbersome, and sick-suited to enter a discipline of planted row crops for weed Handle. The "standard" tractor definition is now not in present-day use. On the other hand, tractors with mounted whe