以陇亚10号为指示品种，研究了播期对胡麻田杂草发生以及对胡麻产量的影响，结果表明:在播种量为60 kg/hm2时，播期对露地胡麻田杂草发生程度具有显著影响，播期越晚杂草发生越轻；播期对露地胡麻产量也有显著影响，播期越晚产量越低。综合杂草发生程度与胡麻产量，兰州地区的胡麻适播期以为4月2日前后为宜。

Longya 10 as indicator species， influence of sowing date on weeds occurrence in linseed field and yield of linseed are conducted . The result shows that the sowing date had significant influence on weeds occurrence degree in linseed field . The more late sowing date， the lighter the weed occurrence. The sowing date had significant influence on yield of linseed. The more late sowing date， the lower the yield of linseed . Based on weeds occurrence and linseed yield， the suitable sowing date of linseed in the Lanzhou area is around April 2 th， sowing during the period had little effect on yield of linseed， but can effectively reduced weeds occurrence degree， thus reducing the use amount of herbicide and is conducive to protect ecological environment .

S563.2；S451.1

国家胡麻产业技术体系草害防控岗位(CARS-17-GW-7)