“白单九”是白城地区农科所近年育成的玉米新杂交种,具有早熟、抗病、丰产等优点。1987年引入兴安盟种植后,在旱地表现了很大增产潜力,在年降雨较正常情况下,经合理栽培管理,大面积亩产可达500公斤以上。目前“白单九”已成为主栽品种,1989年种植面积约占全盟玉米面积的70%以上。因此研究其高产模式栽培技术,作为指导生产的技术依据,对兴安盟粮食生产具有重要 “Baidi 九” is a new maize hybrid bred in recent years by the Agricultural Science Institute of Baicheng Prefecture. It has the advantages of early maturity, disease resistance and high yield. After the introduction of Xing’an League in 1987, it showed great potential for yield increase in the dry land. Under the normal conditions of annual rainfall, after reasonable cultivation and management, the yield per mu of large area can reach over 500kg. At present, “Bai Danjiu” has become the main cultivars. In 1989, the acreage accounted for more than 70% of the total corn area in the League. Therefore, the study of its high-yielding cultivation techniques, as the technical basis for the guidance of production, food production Xing’an League is important