In planting ratoon sugarcane, four early: ploughing soil so as to loose sugarcane sprout, applying fertilizer during see宿根蔗突出“四早”管理，即早破垄松蔸，促进蔗蔸萌发；早施苗肥，促进蔗苗早生快发，保证养分有效供给；早间苗、定苗，及时剥除枯脚叶，确保甘蔗有效群体和田间通透性；早防治病虫，保证苗齐、苗全、苗匀、苗壮。