为探究镁、锌、锰3种中微量元素基施及基施+喷施的施肥方式对宁夏中部干旱带马铃薯产量、品质的影响，开展旱区马铃薯镁、锌、锰肥料应用效果试验，将镁、锌、锰分别以基施和基施+喷施的方法进行施用。结果表明，基施锌肥37.5 kg/hm2+喷施锌肥2.5 kg/hm2比基施锌肥37.5 kg/hm2增产11.26%，增收7 059元/hm2；基施锰肥45.0 kg/hm2+喷施锰肥2.5 kg/hm2比基施锰肥45.0 kg/hm2增产13.40%，增收8 552元/hm2；基施镁肥75.0 kg/hm2+喷施镁肥2.5 kg/hm2比基施镁肥75.0 kg/hm2增产1.78%，增收1 050元/hm2。由此可见，基施+喷施微肥的增产、增收效果优于基施，建议马铃薯生产中镁、锌、锰3种微肥的补充以基施+喷施为主。

To explore the effects of basal and basal+foliar application of magnesium, zinc, and manganese on the potato yield and quality in the central arid zone of Ningxia, a field experiment was conducted to evaluate the application effects of these three micronutrient fertilizers. Magnesium, zinc, and manganese were applied through basal application alone or in combination with foliar spraying. Results showed that basal application of zinc fertilizer at 37.5 kg/ha combined with foliar spraying of zinc fertilizer at 2.5 kg/ha increased potato yield by 11.26% and net income by 7 059 Yuan/ha compared with basal application of zinc fertilizer alone at 37.5 kg/ha. Basal application of manganese fertilizer at 45.0 kg/ha combined with foliar spraying of manganese fertilizer at 2.5 kg/ha increased potato yield by 13.40% and net income by 8 552 Yuan/ha compared with basal application of manganese fertilizer alone at 45.0 kg/ha. Basal application of magnesium fertilizer at 75.0 kg/ha combined with foliar spraying of magnesium fertilizer at 2.5 kg/ha increased potato yield by 1.78% and net income by 1 050 Yuan/ha compared with basal application of magnesium fertilizer alone at 75.0 kg/ha. These findings indicate that the combined approach of base application plus foliar spray of microfertilizers is more effective than base application alone. It is recommended that the supplementation of magnesium, zinc, and manganese fertilizers in potato production should primarily adopt the basal+foliar application approach.

S532；S147

宁夏回族自治区2024年青年科技人才托举工程项目(宁科协发组字〔2025〕2号)。