（1College of Agronomy，Inner Mongolia Agricultural University，Hohhot 010019，Inner Mongolia，China；2Institute of Vegetables and Flowers，Chinese Academy of Agricultural Sciences，Key Laboratory of Biology and Genetic Improvement of Root and Tuber Crops，Ministry of Agriculture and Rural affairs，Beijing 100081，China；3Institute of Plant Protection，Chinese Academy of Agricultural Sciences，Beijing 100081，China；4Heilongjiang Academy of Agricultural Sciences，Harbin 150086，Heilongjiang，China；5Institute of Potato，Gansu Academy of Agricultural Sciences，Lanzhou 730070，Gansu，China；6College of Plant Protection，Agricultural University of Hebei，Baoding 071001，Hebei，China；7College of Agronomy，Northeast Agricultural University，Harbin 150030，Heilongjiang，China；8College of Plant Protection，Yunnan Agricultural University，Kunming 650201，Yunnan，China；9Crop Research Institute，Fujian Academy of Agricultural Sciences，Fuzhou 350013，Fujian，China；10Vegetable and Flower Institute，Shandong Academy of Agricultural Sciences，Jinan 250100，Shandong，China）
采用问卷调研和文献检索相结合的方法，分析我国6 个马铃薯主产区氮肥施用量、基肥量、追肥次数、马铃薯产量等因素，对马铃薯氮肥利用率现状进行了分析评价，探讨提高马铃薯氮肥偏生产力的有效途径。结果表明：不同产区马铃薯氮肥偏生产力差异较大，东北区为184 kg · kg-1、西南区110 kg · kg-1、中原区104 kg · kg-1、华南区99 kg · kg-1、西北区95 kg ·kg-1、华北区84 kg · kg-1；氮肥施用过量是氮肥偏生产力低的主要原因；通过采取“大配方、小调整”区域配肥技术、土壤测试与植株营养诊断相结合的氮肥推荐方案、新型肥料和有机肥配施的施肥方式进行马铃薯产量潜力的充分挖掘是实现减氮增效的有效技术途径。
This paper analyzed and evaluated the nitrogen use efficiency actuality in potato production by questionnaire and literature retrieval method for nitrogen application rate，basic fertilizer application rate，potato yield，etc. in 6 potato producing areas；and probed into the effective way of improving PFP in potato production．The results showed that there were bigger differences in productivity of applied N（PFP）between different production areas．It was 184 kg·kg-1 in Northeastern China，110 kg·kg-1 in Southwestern China，104 kg·kg-1 in Central Plain Region，99 kg·kg-1 in Southern China，95 kg·kg-1 in Northwestern China，and 84 kg·kg-1 in North China，The main reason for low productivity of nitrogen fertilizer was excessive application of nitrogen fertilizer．The effective technical ways to reduce nitrogen application and increase efficiency were to adopt‘ big formula，small adjustment’regional fertilization technology；to apply nitrogen fertilizer recommended plan of combining soil test with plant diagnosis；to conduct fertilization pattern of mixing new fertilizer with organic fertilizer，thus to fully excavate yield potential，reduce nitrogen application，and increase efficiency．
于静，熊兴耀，高玉林，王贵江，王万兴，吕和平，朱杰华，石瑛，杨艳丽，汤浩，董道峰，樊明寿. 中国马铃薯不同产区氮肥利用率的比较分析[J]. 中国蔬菜, 2019, 1(7): 43-50.
YU Jing，XIONG Xing-yao，GAO Yu-lin，WANG Gui-jiang，WANG Wan-xing，LYU He-ping，ZHU Jie-hua，SHI Ying，YANG Yan-li，TANG Hao，DONG Dao-feng，FAN Ming-shou. Comparative Analysis of Nitrogen Use Efficiency in Different Potato Production Areas of China. China Vegetables, 2019, 1(7): 43-50.
