在天水市半干旱山区研究了不同起垄覆膜方式对甘蓝型冬油菜天油9号的影响。结果表明，全膜覆盖垄沟穴播种植较对照露地穴播的越冬率提高7.23百分点，全生育期缩短9 d，产量增加39.53%，产值达 25 975元/hm2，净收益增加3 083元/hm2。

Effect of ridge-forming and film-covering modes on Brassica napus Tianyou 9 is studied in Semiarid Hilly Area of Tianshui. The results shows that the planting modes of Brassica napus on the winter survival rate enhanced 7.23 percentage point， the whole growth period shorten 9 days， the yield increased by 39.53%， the output value reached 25 975 yuan/hm2， net income increased 3 083 yuan/hm2 which hole sowing in ridge mulched with plastic films than these without plastic-films covering in bunch seeding and row seeding .

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甘肃省科技重大专项“强优势、高产油菜品种创制及示范”(1203NKDF0018)部分内容