１９９８～１９９９年栾城县引进试种８９０１强筋质专用小麦４０ｈ （公顷）获６６７ （亩）产４５０ （公斤） ,以栾城县实践经验看 ,应注意以下六个问题。一、提高播种质量８９０１系半冬性早熟品种 ,为防止冻害死苗 ,一是要播深适当 ,不能浅播 ,并保持覆土厚度３ （厘米 From 1998 to 1999, Luancheng County introduced test-cultivating 8901 gluten-specific wheat 40h (hectare) to obtain 667 (mu) yield 450 (kg). According to the practical experience of Luancheng County, the following six issues should be paid attention to. First, to improve sowing quality 8901 Department of semi-winter precocious varieties, in order to prevent frost damage dead seedlings, one is to sow the appropriate depth, not shallow sowing, and to keep the soil thickness 3 (cm