安徽农业科学2016，Vol.44Issue(19)：124-127,132,5.
种植密度和施氮量互作对烤烟生长发育及产质量的影响
Effects of Planting Density and Nitrogen Fertilization Amount on Growth, Yield and Quality of Flue-cured Tobacco
摘要
Abstract
Objective] To study the effects of the interaction of planting density and nitrogen fertilization amount on the growth and develop-ment, yield, quality and production value of flue-cured tobacco, and provide guidance for improving the production level and tobacco leaf quality in Changde tobacco-growing areas.[Methods] Two-factor randomized block design was applied, Yunyan 87 was taken as experimental material, and planting density was set to 3 levels, to explore the effects of the planting density and nitrogen fertilization amount on growth and development , yield, quality and production value of flue-cured tobacco.[Results] The results showed that flue-cured tobacco growth stage was mainly affected by nitrogen fertilization amount, and the growth stage of tobacco plants was not affected by planting density.The nitrogen fertilization and clipping height exerted significant effect on plant height, node length, single plant leaf area index, stem girth and leaf weight of the tobacco plants, and had significant effect on the contents of total sugar and reducing sugar in the leaves of tobacco and the contents of nicotine in the lower and middle leaves of tobacco, also had significant effect on the yield, the price and the highest class leaf proportion of tobacco.Both the contents of total sug-ar and reducing sugar in the upper leaves of tobacco displayed significant interaction between planting density and nitrogen fertilization amount . The interaction between the planting density and nitrogen fertilization also had significant effect on the contents of reducing sugar and total potassi-um in the lower and middle leaves of tobacco.Nitrogen fertilization was the dominant factor affecting the plant height, node length, single plant leaf area index, leaf weight, the contents of total chlorine, the contents of total potassium, the contents of total nitrogen, the yield, the price and the highest class leaf proportion of tobacco .Planting density was the dominant factor affecting the stem girth , the highest class leaf proportion and the contents of nicotine, total sugar and reducing sugar in the leaves of tobacco.[Conclusion] The yield is highest (2 104.6 kg/hm2) when the planting density is 1.80 ×104 plants/hm2 and the nitrogen fertilization amount is 135 kg/hm2 , the economic benefit is the highest (52 729.7 yuan/hm2) when the planting density is 1.65 ×104 plants /hm2 and the nitrogen fertilization amount is 120 kg/hm2.关键词
烤烟/种植密度/氮肥用量/交互作用/产量/品质/产值Key words
Flue-cured tobacco/Planting density/Nitrogen fertilization amount/Interaction/Yield/Quality/Production value分类
农业科技引用本文复制引用
刘楠楠,崔国贤,孙敬钊,皮本阳,孙智勇,李强,白玉超,李雪玲,黄敏升,郭婷..种植密度和施氮量互作对烤烟生长发育及产质量的影响[J].安徽农业科学,2016,44(19):124-127,132,5.基金项目
湖南省烟草公司常德市公司2015年科技创新自立项目；现代农业产业技术体系“国家麻类产业技术体系土壤肥料岗位”（ CARS－19－E20）。 （）
