CAJ | 학술논문

通过裂区随机区组设计田间试验，研究了氮肥与土壤改良剂配施对烤烟农艺性状、叶片SPAD 值、产量、产值、上等烟比例的影响，以期为烟区土壤改良、合理施用氮肥提供理论和技术依据。结果表明，随着施氮量增加，烤烟株高、茎围、叶片数、叶面积均增加；土壤改良剂能促进烤烟株高、茎围、叶片数、叶面积增加。随着施氮量增加，烤烟叶片 SPAD 值在旺长期增加，在团棵期、圆顶期先增加后降低；而施用土壤改良剂能降低烤烟叶片 SPAD 值。随着施氮量增加，烟叶产量和产值均增加，烟叶均价和上等烟比例先升高后降低，分别在施氮量为45·0 kg/hm2、67·5 kg/hm2时最高；土壤改良剂能增加烤烟产量和产值，但当施氮量等于、高于67·5 kg/hm2时会降低烤烟均价和上等烟比例。总之，施氮并配施土壤改良剂能促进烟叶生长、提高烟叶产量和产值。
통과렬구수궤구조설계전간시험，연구료담비여토양개량제배시대고연농예성상、협편SPAD 치、산량、산치、상등연비례적영향，이기위연구토양개량、합리시용담비제공이론화기술의거。결과표명，수착시담량증가，고연주고、경위、협편수、협면적균증가；토양개량제능촉진고연주고、경위、협편수、협면적증가。수착시담량증가，고연협편 SPAD 치재왕장기증가，재단과기、원정기선증가후강저；이시용토양개량제능강저고연협편 SPAD 치。수착시담량증가，연협산량화산치균증가，연협균개화상등연비례선승고후강저，분별재시담량위45·0 kg/hm2、67·5 kg/hm2시최고；토양개량제능증가고연산량화산치，단당시담량등우、고우67·5 kg/hm2시회강저고연균개화상등연비례。총지，시담병배시토양개량제능촉진연협생장、제고연협산량화산치。
Effects of nitrogen fertilizer combined with soil conditioner on agronomic characters, leaf SPAD value,yield,output value and proportion of superior tobacco leaves were studied by field split-plot randomized block design experiment,so as to provide theoretical and technical basis for soil improvement and reasonable application of nitrogen fertilizer.Results showed that,plant height,stem girth,leaf number and leaf area of flue-cured tobacco increased with the increase of nitrogen application rate;the application of soil conditioner could increase plant height,stem girth,leaf number and leaf area of flue-cured tobacco.With the increase of nitrogen application rate,leaf SPAD values increased at vigorous growth stage,and first increased and then decreased at resettling stage and round top stage;the application of soil conditioner could decrease leaf SPAD values.With the increase of nitrogen application rate,tobacco leaf yield and output value increased,average price and proportion of superior tobacco leaves both first increased and then decreased with the peak value at nitrogen application rate of 45·0 kg/ha,67·5 kg/ha, respectively;the application of soil conditioner could increased yield and output value,but when the nitrogen application rate was greater than or equal to 67·5 kg/ha,the application of soil conditioner decreased the average price and proportion of superior tobacco leaves.Overall,the application of nitrogen fertilizer combined with soil conditioner could promote the growth of tabacco,and increase the yield of tobacco.