荞麦抗旱、耐瘠、适应性强、生育期短,是平凉地区主要复种、备灾作物之一。近几年来,由于作物布局的调整,麦茬复种荞麦的面积也有所扩大。生产实践表明,适期播种是获得荞麦高产的关键技术措施。苏联一学者的研究结果表明,在综合农业技术措施中,复种荞麦在7月上旬适期播种有着重要的作用:早播可延长生育期,有利籽粒产量的形成。内蒙古自治区农科院小杂粮研究听王仲青等人的春播荞麦播种期试验表明,在阴山以北6月20日是荞麦播种期的临界期。关于冬小麦收获后复种荞麦适宜播种期的研究,国内报导较少。为了探索荞麦丰 Buckwheat drought, barren, adaptability, short growth period, is the main species in Pingliang area, one of disaster preparedness. In recent years, due to the adjustment of the crop layout, the area of ​​wheat stubble multiple buckwheat has also been expanded. Production practice shows that sowing is the key to high yield buckwheat technical measures. The results of a Soviet Union scholar showed that in the comprehensive agro-technical measures, the sowing of multiple buckwheat sowing in early July has an important role: Early sowing can prolong the growth period and facilitate the formation of grain yield. Inner Mongolia Autonomous Region Academy of Agricultural Sciences small grains to listen Wangzhong Qing et al spring sowing sowing date trials show that in the north of Yinshan on June 20 is the critical period of sowing sowing. About the study of suitable sowing date of multiple buckwheat after harvesting of winter wheat, there are few domestic reports. In order to explore buckwheat abundance