烟草科技2016，Vol.49Issue(10)：23-30,8.DOI:10.16135/j.issn1002-0861.2016.0048
增密和减氮对稻茬烤烟物理性状的效应分析
Effects of increased planting density and reduced nitrogen on physical properties of flue-cured tobacco rotated in rice paddy field
摘要
Abstract
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.关键词
稻茬烤烟/物理特性/种植密度/施氮量/效应分析/互作Key words
Rice paddy-tobacco rotation/Physical property/Planting density/Nitrogen application rate/Effective analysis/Interaction分类
农业科技引用本文复制引用
邓小华,蔡兴,于庆涛,邹凯,张光利,雷天义,肖志翔,齐永杰..增密和减氮对稻茬烤烟物理性状的效应分析[J].烟草科技,2016,49(10):23-30,8.基金项目
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）。 （）
