中国果菜2026，Vol.46Issue(8)：67-72,6.DOI:10.19590/j.cnki.1008-1038.2026.08.012
氮磷钾施用方式对膜下滴灌马铃薯生长的影响
Effects of Nitrogen,Phosphorus and Potassium Application Methods on Potato Growth under Mulch Drip Irrigation
摘要
Abstract
To clarify the high-yield and high-efficiency fertilization mode for potatoes under mulch drip irrigation,field experiments were conducted with'Xindaping'as the material.The effects of two nitrogen(N)and potassium(K)application methods(100％basal application vs.50％basal+50％split topdressing),three fertilization rates(32,37,42 kg/667 m2),as well as different phosphorus(P)and K ratios on potato agronomic traits,dry matter accumulation,and yield formation were investigated.The results indicated that split topdressing of N and K extended the flowering-to-maturity period by 4-6 days and enhanced plant height,leaf area index,and dry matter accumulation during the middle and late growth stages.High P with low K promoted above-ground growth,while low P with high K favored tuber dry matter accumulation.Yield initially increased and then decreased with rising fertilization rates,peaking at 37 kg/667 m2.The combination of split N and K application with a low P-high K ratio(N-P2O5-K2O=15-10-12)achieved the highest yield of 4 855.5 kg/667 m2,a 26.29％increase over CK.These results suggested that for'Xindaping'seed potato production under mulch drip irrigation,a total fertilization rate of 37 kg/667 m2 with 50％basal+50％split topdressing of N and K,combined with a low P-high K ratio,optimizes plant growth and significantly increases yield.关键词
马铃薯/氮磷钾施用量/施用方式/膜下滴灌/产量Key words
Potato/nitrogen,phosphorus and potassium application rate/fertilization method/drip irrigation with plastic film mulch/yield分类
农业科技引用本文复制引用
马桂芬,闫承宏,陈素娥,张丽娟,唐彩梅,袁安明,史晓鹏,杨建禄,张小静..氮磷钾施用方式对膜下滴灌马铃薯生长的影响[J].中国果菜,2026,46(8):67-72,6.基金项目
甘肃省重点研发计划(24YFNJ003) （24YFNJ003）
定西市重点技术攻关专项(DX2024AZ15) （DX2024AZ15）
