But lettuces have extremely shallow roots and wish lots of nitrogen to establish our favourite leafy greens. ???? ????? ?? ????? ????? ?????? ?? ???? ???? ?????? ?? ?? ??? ????? ??? ????? ???? ????? ??????? ??? ? ?????? ?????? ????????? ? ??????? ????? ??? ???.????? ???? ??? ??? ???? ?? ??? ???? ? ????? ???? ??? ???? ??? ? ????? ???? ????? ???? ??