【摘要】 【目的】了解云南省马铃薯农户种植状况,为进一步优化马铃薯种植提供参考。【方法】采用实地访问和田间调查的调研方法,对云南省典型马铃薯种植区域的农户产量、肥料用量和养分平衡等数据进行了分析。【结果】云南省马铃薯种植户的氮、磷、钾养分平均用量分别为222.5、111.3和60.8 kg/hm~2。滇北氮肥和钾肥用量较高。农田氮、磷平均盈余量分别为139.2、60.6 kg/hm~2,钾的亏缺量为59 kg/hm~2。【结论】云南省马铃薯种植应调整氮磷钾施肥比例,减少氮肥用量、增加钾肥施用量。更多还原

【Abstract】 [Purpose]To understand the cultivation of potato farmers in Yunnan Province, which is very important for further optimization of potato cultivation.[ Method] By using the method of household survey and investigation in field, we calculated and analyzed the crop yield, the fertilizer application and the nutrient balance in the typical planting area of potato.[Result]The average input for N, P₂O₅, K₂ O were 222.5, 111.3 and 60.8 kg/hm², respectively in the typical potato field of Yunnan Province. The amount of N and K₂ O input in the Northern Yunnan are higher than other area;N and P₂O₅ surplus were 139.2 and 60.6 kg/hm² in ecosystem of potato plantations in Yunnan Province, K₂ O deficit of 59 kg/hm².[Conclusion]NPK fertilizer ratio should be adjusted by moderate reducing the usage of N and increasing the amount of K₂ O in Yunnan.更多还原