摘要
为明确邵阳烟区稻茬烤烟增密和减氮的可行性,采用双因素试验以及构建物理特性指数、运用偏Eta^2值等手段分析了种植密度和施氮量及其交互作用(互作)对烤烟物理特性的影响。结果表明:(1)种植密度和施氮量对不同烤烟物理特性的影响不同,种植密度主要影响烟叶开片度和单叶质量,施氮量主要影响烟叶开片度、单叶质量、叶片厚度和叶面密度。(2)邵阳稻作烟区以种植密度18 182株/hm^2、施氮量120 kg/hm^2处理的烟叶物理特性指数最高。(3)对烤烟物理特性影响最大的是施氮量,占总效应的48%;其次是种植密度,占40%;种植密度与施氮量互作影响最小,占12%。因此,在邵阳烟区稻茬烤烟生产中应适当增加种植密度、减少氮肥施用。
To study the feasibility of increased planting density and nitrogen-saving on flue-cured tobacco rotated with rice paddy in Shaoyang tobacco planting areas, physical properties of flue-cured tobacco were analyzed by constructing physical property index and adopting partial Eta2 value via a bi-factorial experiment.The results showed that： 1） The effects of planting density and nitrogen level on the physical properties of flue-cured tobacco were different, planting density mainly affected leaf openness and single leaf weight, and nitrogen level mainly influenced leaf openness, single leaf weight, leaf thickness and weight per unit leaf area.2） In Shaoyang rice paddy-tobacco rotation areas, the physical property index of tobacco was the best at the planting density of 18 182 plants/ha and the nitrogen level of 120 kg/ha. 3） The effect of nitrogen level on physical properties of flue-cured tobacco was maximum（accounted for 48%）, followed by that of planting density（accounted for 40%）, and that of their interaction accounted for 12%. Therefore, in order to achieve better physical properties of flue-cured tobacco, properly increasing planting density and reducing nitrogen fertilizer are recommended for tobacco planting in Shaoyang rice paddy-tobacco rotation areas.
出处
《烟草科技》
EI
CAS
CSCD
北大核心
2016年第10期23-30,共8页
Tobacco Science & Technology
基金
广西中烟工业有限责任公司科技项目"满足真龙品牌的郴州烤烟优化群体质量及其调控技术研究"(201545000034011)
邵阳市烟草公司科技项目"邵阳烟叶结构优化的群体质量及其关键调控技术研究"(sy13-15ky01)
关键词
稻茬烤烟
物理特性
种植密度
施氮量
效应分析
互作
Rice paddy-tobacco rotation
Physical property
Planting density
Nitrogen application rate
Effective analysis
Interaction
