But lettuces have extremely shallow roots and need an abundance of nitrogen to create our favorite leafy greens. ??? ??? ???? ???? ?? ????? ????? ???????? ???? (??????? ??????) ?? ???? ??????????? ?????? ???? ?? ???? ?????? ? ????? ???? ?? ?????? ?? ??? ??? ??????? ????.???????? ???? ?????? ????? ?? ????? ?? ????? ???? ??? ??? ??????? ? ????? ????