中国农学通报2025，Vol.41Issue(1)：19-24,6.
密度与氮肥对高海拔地区马铃薯产量和品质的影响
Effects of Density and Nitrogen Fertilizer on Potato Yield and Quality in High Altitude Area
摘要
Abstract
In order to explore the effects of cultivation density and nitrogen fertilizer application on potato yield and quality in high-altitude areas,a two factor split plot experimental design was adopted. Three density levels (41700,50000,62500 plant/hm2,represented as D1,D2,D3 respectively) and four nitrogen application levels (0,110,220,330 kg/hm2,represented as N0,N1,N2,and N3 respectively) were set up to analyze different densities and the effect of nitrogen fertilizer treatment combination on the plant traits,yield,and quality of the late maturing potato variety'Zangnongshu 1 ',and explore the optimal fertilizer density configuration for this variety. The results showed that density and nitrogen fertilizer had a significant impact on the traits,yield,and quality of potato plants,and the yield and quality were significantly affected by the interaction between density and nitrogen fertilizer. The potato yield and commercial potato yield under low density of 41700 plants/hm2 increased with the increase of nitrogen application. The dry matter content,starch content,and protein content showed a trend of first increasing and then decreasing with the increase of nitrogen application. The potato yield and commercial potato yield under high density of 50000 plants and high density of 62500 plants/hm2 increased and then decreased with the increase of nitrogen application,while the dry matter content,starch content,and protein content showed an upward trend. The highest potato yield under D2N2 treatment was 47884 kg/hm2,with a commercial potato yield of 56.03%,and good performance in plant and quality traits. Taking into account plant,yield,and quality traits,based on TOPSIS analysis results,it is more suitable to plant potatoes in Lhasa and its surrounding areas with a density of 50000 plants/hm2 and a nitrogen application rate of 220 kg/hm2.关键词
马铃薯/密度/氮肥/产量/品质/高海拔地区/拉萨Key words
potato/density/nitrogen fertilizer/yield/quality/high-altitude areas/Lhasa分类
农业科技引用本文复制引用
祁驰恒,曾钰婷,许娟妮,尼玛卓嘎..密度与氮肥对高海拔地区马铃薯产量和品质的影响[J].中国农学通报,2025,41(1):19-24,6.基金项目
中央引导地方项目"'藏农薯1号'马铃薯新品种良种繁育与示范"(XZ202301YD0039C) （XZ202301YD0039C）
财政部和农业农村部:国家现代农业产业技术体系项目"国家马铃薯产业技术体系拉萨综合试验站"(CARS-10-ES30). （CARS-10-ES30）
