[目的]研究在大田栽培条件下马铃薯初花期叶面喷施复合型作物生长营养调理剂LYR-1对马铃薯株高、茎粗、单株叶面积、根体积及产量的影响。[方法]在初花期以喷施清水为对照，喷施3种浓度梯度的LYR-1为处理，并测定不同浓度的LYR-1对株高、茎粗、单株叶面积、根体积及产量的影响。[结果]T2处理的LYR-1可促进马铃薯株高、茎粗、单株叶面积及根体积的增加，提高了马铃薯的产量。[结论]复合型作物生长营养调理剂LYR-1对马铃薯生产具有重要的应用价值。%Objective] The effect on potato plant height, stem diameter, leaf area, root volume and yield of potato with growth nutritional regulator LYR-1 foliage spraying in initial flowering stage in field cultivation were studied. [Method] Compared with spraying water as control, three different concentration gradient LYR-1 were treated. The influence on potato plant height, stem diameter, leaf area, root volume and yield were measured. [Result] The potato plant height, stem diameter, leaf area, root volume and yield were increased with T2 treatment. [Conclusion] LYR-1, a kind of compound nutritional for plant growth, was of great and practical value to potato production.
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