摘要
为探索清镇烟区不同烤烟品种的适宜施氮量,采用2因素随机区组试验设计,研究品种、施氮量及其互作对烤烟经济性状的影响。结果表明:1)南江3号、贵烟2号经济效果指数较高,分别较K326高3.23、2.61;2)产量随施氮量的增加呈上升趋势,而均价、上等烟率、产值均呈先上升后下降趋势,施氮量为105 kg/hm^2时烤烟经济效果指数最高,分别较施氮量75、135 kg/hm^2的处理高7.88、10.58;3)南江3号×施氮量135 kg/hm^2、K326×施氮量105 kg/hm^2、贵烟2号×施氮量105 kg/hm^2组合的经济效果指数较高,K326×施氮量135 kg/hm^2组合较低;4)对产量贡献率最大的是施氮量,其次是品种,品种与施氮量互作最低;而对产值、均价、上等烟率贡献率最大是品种与施氮量互作,其次是施氮量,品种最低。清镇烟区烤烟品种南江3号以施氮量135 kg/hm^2为宜,贵烟2号、K326以施氮量105 kg/hm^2为宜。
In order to find suitable nitrogen application rates for different flue-cured tobacco varieties in Qingzhen tobacco area,a two-factor randomized block experiment was adopted to study the effects of varieties,nitrogen application rates and their interaction on economic properties of flue-cured tobacco.The results showed that:1)The economic effect index of Nanjiang No.3 and Guiyan No.2 was 3.23 and 2.61 higher than that of K326,respectively.2)Yield increased with the increase of nitrogen application rate,while the average price,first-class tobacco rate,and output value all increased firstly and then declined.The economic effect index of flue-cured tobacco was the highest with 105 kg/hm^2 nitrogen application,which was 7.88 and 10.58 higher than that of 75 kg/hm^2 and 135 kg/hm^2 nitrogen application,respectively.3)The economic effect index of the combination of Nanjiang No.3×135 kg/hm^2,K326×105 kg/hm^2,and Guiyan No.2×105 kg/hm^2 was higher,and the combination of K326×135 kg/hm^2 was lower.4)Nitrogen application rate was the largest contribution rate to yield,followed by variety;while the largest contribution rate to output value,average price,and top tobacco rate was the interaction between variety and nitrogen application rate,followed by the amount of nitrogen applied.Then suitable nitrogen application rate of flue-cured tobacco variety Nanjiang 3 was 135 kg/hm^2,while that of Guiyang 2 and K326 was 105 kg/hm^2.
作者
顾永丽
周建云
黄宁
刁朝强
艾复清
GU Yongli;ZHOU Jianyun;HUANG Ning;DIAO Chaoqiang;AI Fuqing(Tobacco College of Guizhou University,Guiyang,Guizhou 550025,China;Guiyang Tobacco Company,Guiyang,Guizhou 550025,China;Key Laboratory of Tobacco Quality Research of Guizhou Province,Guiyang,Guizhou 550025,China)
出处
《作物研究》
2020年第5期459-463,共5页
Crop Research
基金
贵州省烟草公司贵阳市公司项目(筑烟科[2014-03])。
关键词
烤烟
栽培
品种
施氮量
经济性状
经济效果指数
flue-cured tobacco
cultivation
variety
nitrogen application rate
economic traits
economic effect index
