种植密度和施氮量及其互作对湘南稻茬烤烟经济性状的效应  

Effective analysis of planting density, nitrogen level and its interaction on economic character of paddy-tobacco in South Hunan

作　　者：邓小华[1] 肖志君 齐永杰[2] 罗建钦 徐文兵[2] 黄崇峻[2] 黄聪光[2] 李宏光 王生才 

机构地区：[1]湖南农业大学农学院,湖南长沙410128 [2]广西中烟工业有限责任公司,广西南宁530001 [3]湖南省烟草公司郴州市公司,湖南郴州423000

出　　处：《湖南农业大学学报（自然科学版）》2016年第3期274-279,共6页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：广西中烟工业有限责任公司项目（201545000034011）

摘　　要：为明确湘南稻茬烤烟的种植密度和施氮量,采用双因素随机区组试验和构建经济效果指数,并采用偏（Eta）2值分析了种植密度和施氮量及其互作对烤烟经济性状的效应。结果表明：1）种植密度和施氮量及其互作对烤烟不同经济性状指标的效应不同,种植密度对烤烟上等烟比例和均价具有显著的高度影响效应,种植密度、施氮量、种植密度和施氮量互作对烤烟产量、产值具有显著的高度影响效应;2）种植密度对烤烟经济性状的影响占40%左右,施氮量及种植密度与施氮量互作各占30%左右;3）种植密度以18 195株/hm^2处理的烤烟经济性状相对较好,施氮量以165 kg/hm^2处理的烤烟经济性状相对较好;4）在湘南稻茬烟区,以种植密度18 195株/hm^2、施氮量142.5 kg/hm^2处理组合的烤烟经济性状相对较好。To explore the optimal planting density and nitrogen level for paddy-tobacco in South Hunan, the effects of planting density, nitrogen level and their interaction on economic character of flue-cured tobacco were analyzed by construction of economic character index and partial （Eta）2 value from two factors experiment. The results showed： 1） Planting densities, nitrogen levels and its interactions had different influence on flue-cured tobacco economic characters; planting density showed significant effect on the fine tobacco ratio and average price; planting densities, nitrogen levels and its interactions showed significant effect on the yield and out-put value of flue-cured tobacco. 2） The effect of planting density on the flue-cured tobacco economic characters accounted for 40% while the effect ofnitrogen levels and planting density-nitrogen level interactions on the flue-cured tobacco economic characters each accounted for 30%. 3） Economic character of flue-cured tobacco under treatment with 18 195 plant/hm2 was good was, economic character of flue-cured tobacco under treatment with N 165 kg/hm2 was good. 4） Economic characters of flue-cured tobacco was the best in treatment with 18 195 plants/hm2 combined with 142.5 kg/hm2 N.

关 键 词：稻茬烤烟 经济性状 种植密度 施氮水平 湘南 

分 类 号：S572.01[农业科学—烟草工业]