适宜黑龙港流域不同茬口种植的谷子品种筛选

Screening of Foxtail Millet Varieties under Different Rotation Systems for Heilonggang Area

黑龙港低平原地区属华北夏谷区,为了提早收获,生产上常利用夏谷品种进行春播,导致谷子病虫害发生严重。且该区缺乏与油葵、马铃薯接茬的早熟谷子品种。以生产上种植面积较大的6个谷子品种为试材,在春夏季节不同时期进行播种,从生育期、农艺及经济性状、产量等方面进行综合分析,以筛选适宜该区域不同茬口种植的春夏播谷子品种。结果表明:张杂谷16和冀谷38适宜春播;张杂谷16、冀谷36和冀谷35适宜麦收后播种;张杂谷16和改良8号适宜晚夏播种;特早一号较适宜接油葵茬播种和作为救灾品种在7月25日以后播种。

Heilonggang area belongs to the summer millet areas of North China.In order to harvest early,summer millet varieties are often sown in spring,which results in serious diseases and insect pests.There are few early maturity millet varieties rotated with oil sunflower and potato.Six millet varieties planted in larger areas were used to synthetically evaluate the growth period,agronomic and economic traits and yield in different sowing time,aiming to screen the suitable varieties for different rotation systems.The results showed that Zhangzagu 16 and Jigu 38 were suitable for spring sowing.Zhangzagu 16,Jigu 36 and Jigu 35 were suitable for sowing after wheat harvest.Zhangzagu 16 and Gailiang No.8 were suitable for sowing in late summer.Tezaoyihao was suitable for sowing after oil sunflower harvest,which could be a disaster relief variety sown after July 25th.