But lettuces have really shallow roots and need a lot of nitrogen to acquire our favourite leafy greens.  ???? ????? ??? ?? ????? ????? ?? ????? ????? ????? ??? ? ????? ?????? ? ???????‌?? ?? ???? ???? ? ???? ???. ??????? ??? ?????? ???? ????? ???????????? ???? ???? ? ?? ???? ????? ?? ?