辽北地区具有“两杂”制种得天独厚的自然优势,近几年制种量不断增加。但由于当地生育期较短,种子成熟后温度下降快,种子含水量较高,影响种子质量。为解决这一矛盾,近几年我们大力推广玉米站秆扒皮晾晒降水的措施,取得了较好的效果。但是也有不少制种单位和制种农户认为,丹玉13号玉米、中单2号玉米制种进行站秆扒皮晾晒得不偿失。他们的理由有3条:一是这两个品种制种降水容易,可不用扒皮 The northern part of Liaoning Province has the unique natural advantage of “two hybrids”, and the seed production has been increasing in recent years. However, due to the short local growth period, the temperature dropped rapidly after the seed matured, and the seed moisture content was higher, which affected the seed quality. In order to solve this contradiction, in recent years we have vigorously promoted the corn stalk skinning drying and drying measures, and achieved good results. However, there are also many seed production units and seed farmers that Dan Yu No. 13 corn and Zhongdan No. 2 corn seed stalks are not worth the candle. There are 3 reasons for them: First, the precipitation of these two varieties is easy to produce, and there is no need to grind the skin