马铃薯新品种‘兴佳2号’在湖南的引种表现及配套栽培技术

Performance of Introduced New Potato Variety ’Xingjia 2’ and Corresponding Cultivation Techniques

主栽品种单一、生产效益偏低,一直是湖南省马铃薯产业发展面对的难题。2013年‘兴佳2号’在湖南常德引种试种成功,为测试其适应性及稳定性、探索其配套栽培技术,2015~2016年在湖南省5个试点开展试验,2017年进行覆盖模式试验及肥料配比试验。结果表明,‘兴佳2号’在湖南冬春季种植生育期82d,属于中早熟品种,生长势强,小区产量明显高于对照‘中薯5号’,并高抗晚疫病;‘兴佳2号’2年多点试验田间表现稳定一致,较对照‘中薯5号’平均增产15.9%;‘兴佳2号’黑膜覆盖栽培、肥料NPK用量为100kg/667m2、比例为20..10..16时产量最高。

Few potato varieties are grown and production efficiency is low in Hunan Province, which are difficult problems for potato industry development in this province.'Xingjia 2' was successfully introduced and experimented in Hunan Province in 2013. In order to test its adaptation and yield stability, and explore its corresponding cultivation techniques, the variety was tested in five sites during 2015-2016, and tests of mulching patterns and NPK ratios were also carried out in 2017. The growth duration of 'Xingjia 2' was 82 days when grown in winter and spring seasons, so it is a medium early variety. It was vigorous in growth and highly resistant to late blight, and the yield per plot was obviously higher than that of the control variety 'Zhongshu 5'. The field performance of 'Xingjia 2' grown in different sites over two years was stable and yield was increased by 15.9% compared with 'Zhongshu 5'.'Xingjia 2', mulched with black plastic film, and fertilized at a rate of 100 kg/667m2 with NPK ratio of 20 : 10 : 16, gave the highest yield.