北京市甘薯育苗生产与需求现状及发展建议

对从北京市密云、大兴、房山、延庆、顺义的16个乡镇随机抽取的116户甘薯种植户的薯苗需求情况进行调研,再选取密云、大兴、房山、延庆7个乡镇的41户甘薯育苗户进行育苗生产情况调研,结果发现：北京市甘薯育苗及生产存在甘薯种植面积零散、育苗质量参差不齐、种薯（苗）生产销售非专业化、脱毒种（苗）普及率低、甘薯贮藏损失率高等问题。建议：优化甘薯品种布局、创新甘薯脱毒技术,推广绿色环保高效育苗方式,打造京郊“籽种农业”,辐射京津冀地区,带动甘薯产业协同发展。

Production,Demand and Developmental Suggestions for Sweet Potato Seedling in Beijing

According to the investigation for seedling production and demand situation of sweet potato production areas, 41 seedling households (from Miyun, Daxing, Fangshan, Yanqing) and 116 planting households (from Miyun, Daxing, Fangshan, Yanqing, Shunyi) in Beijing, there were some problems on sweet potato breeding and production, including scattered planting area, uneven seedling quality, non-professional production and sales,low popularizing of virus-free sweet potato, high losing rate of sweet potato storage and so on.Recommendations for these problems were to optimize the layout of sweet potato varieties, to make innovative virus-free technology,to promote green,efficient and environmental seedling protection methods, finally, to create "seed agriculture" of radiating Beijing-Tianjin-Hebei area, to promote the development of sweet potato industry.