大麦与谷类科学2025，Vol.42Issue(2)：43-47,5.DOI:10.14069/j.cnki.32-1769/s.2025.02.007
不同密度和施肥水平对云大麦14号产量及构成因素的影响
Effects of Different Densities and Fertilization Levels on Yield and Its Components of Yundamai No.14
摘要
Abstract
In order to explore the effect of different densities and fertilization levels on the yield and its components of Yundamai No.14,we set up three density gradients(A1:1.95 million plants/hm2,A2:2.25 million plants/hm2,A3:2.55 million plants/hm2)and 6 fertilization levels(B1:no fertilization,B2:150 kg/hm2 urea,B3:3 000 kg/hm2 farmyard manure,B4:75 kg/hm2 urea+1 800 kg/hm2 farmyard manure,B5:45 kg/hm2 urea+2 400 kg/hm2 farmyard manure,B6:105 kg/hm2 urea+1 200 kg/hm2 farmyard manure),and determined the yield and component factors during maturity.The results showed that planting density,fertilization level,and their interaction had highly significant effects on the yield,spike number per unit area and the thou sand-grain weight of Yundamai No.14.The yield and spike number per unit area increased with the increase of density,and grains per spike were insensitive to fertilization treatment.The optimal combination for yield under different density and fertilization treatments was A3B6,followed by A2B3,with no significant difference between the two.The combination with the highest economic benefit was also A3B6,followed by A1B2.Therefore,under the experimental conditions,Yundamai No.14 achieved optimal yield and economic benefits when cultivated at a planting density of 2.55 million plants per hectare,combined with a fertilization level of 105 kg/hm2 urea and 1 200 kg/hm2 farmyard manure.关键词
云大麦14号/密度/施肥水平/产量/产量构成Key words
Yundamai No.14/Density/Fertilization level/Yield/Yield components分类
农业科学引用本文复制引用
乔祥梅,王志龙,刘列,王志伟,黄廷芝,程耿,程加省..不同密度和施肥水平对云大麦14号产量及构成因素的影响[J].大麦与谷类科学,2025,42(2):43-47,5.基金项目
云南省财政部门预算项目重大专项(53000021000000013809) （53000021000000013809）
云南省科技人才与平台计划-技术创新人才培养对象项目(程加省人才项目)(202205AD160033) （程加省人才项目）
云南省现代农业麦类产业技术体系专项(云农办科). （云农办科）
