选用早熟品种‘荷兰15号’原种1代种薯为试验材料,研究了不同氮磷钾配比对马铃薯农艺性状、产量和干物质含量的影响。结果表明:增加茎粗和分枝数可以提高块茎的产量;合理的氮磷钾配比可以显著提高茎粗和增加分枝数,进而增加马铃薯的产量;氮磷钾配比对块茎干物质含量的影响不大;每667 m2施氮(N)14.4 kg、施磷(P2O5)9.6 kg、施钾(K2O)17.6 kg,可以获得较高的马铃薯产量。 The first generation seed of ’Holland 15’ was used as experimental material to study the effects of different N, P and K ratios on the agronomic characters, yield and dry matter content of potato. The results showed that the increase of stem diameter and number of branches could increase the tuber yield. The reasonable ratio of NPK fertilizers could significantly increase the stem diameter and increase the number of branches, and then increase the yield of potato. The effects of NPK fertilization on tuber dry matter content (14.4 kg N / 667 m2, P2O5 9.6 kg, K2O 17.6 kg / 667 m2), higher yield of potato could be obtained.