湖北省秋马铃薯播种时期探究  

Study on Seedtime of Autumn Potato in Hubei Province

作　　者：余文畅[1] 余贵先 刘克荣[1] 陈振华[1] 李祖春[1] 雷昌云 

机构地区：[1]湖北省宜昌市农业技术推广中心,湖北宜昌443000 [2]湖北省农业技术推广总站,武汉430070

出　　处：《湖北农业科学》2011年第16期3266-3267,3271,共3页Hubei Agricultural Sciences

基　　金：湖北省马铃薯产业发展项目[鄂农种发2009(55)号];湖北省宜昌市科学技术研究与开发项目(2008A08208)

摘　　要：在2009年8月23日至9月19日期间设定6个播种期,主要研究了秋马铃薯的出苗率、商品率和产量情况。结果表明,以8月23日播种的平均单薯重和商品率最高,以8月26日播种的出苗率和产量最高,而后随着播种期的推迟,产量和商品薯率均表现出递减趋势,且播种期愈晚,减产的幅度越大。在9月1日以后播种,时间每推迟1周,产量都会下降10%以上。因此8月下旬后期至9月初为湖北省秋马铃薯的最佳播种时期。Six seeding dates were set during the period from 23rd Aug to 19th sept to study the effect of seedtime on the seedling rate,commodity rate and yield of autumn potato.The results showed that the average single tuber weight and commodity rate topped if seeded in 23rd Aug;while the seedling rate and yield reached the peak when sown in 26th Aug,whereafter,the yield and commodity rate decreased according to the seedtime.The later the seedtime,the greater the decreasing rate.If seed after 1st Sept,the yield would decrease by more than 10% when the seedtime was postponed by week each time.Therefore,the best seedtime of autumn polato in Hubei province was from late August to early September.

关 键 词：秋马铃薯 播种期 出苗率 商品率 产量 

分 类 号：S532.042[农业科学—作物学]