肇东市位于黑龙江省南部,经过多年的实践,制种水平、单产和经济效益都有较大提高,1992年被省确定为玉米杂交种繁殖基地。近几年,每年都为省内各市县繁制玉米杂交种500万公斤以上,单产均在 Zhaodong City is located in the southern part of Heilongjiang Province. After many years of practice, the level of seed production has been greatly improved. Both yield and economic benefits have been greatly improved. In 1992, it was confirmed as a breeding base for maize hybrids by the province. In recent years, every year in the province and cities and counties maize hybrids more than 5 million kilograms, all in