今年河北省遇到了严重的旱灾及病害的大发生。特别是玉米制种基地县,受害更加严重,不少制种田造成绝收,致使我省玉米种子出现了较大的缺口。现在全省各级种子公司为了满足生产用种,都积极地到省外寻找种源。为了减少远距离引种的盲目性,增加预见性,应注意以下几个问题: This year, Hebei Province has experienced serious drought and disease occurrences. Especially in the base of corn production, the victims were even more serious. Many farming systems resulted in absolutely no harvest, resulting in a big gap in corn seed in our province. At present, the seed companies at all levels in the province are actively looking for provenance outside the province in order to meet their production needs. In order to reduce the blindness of long-distance introduction and increase the predictability, we should pay attention to the following questions: