减施氮肥对烤烟叶片SPAD值、农艺性状和经济性状的影响

中图分类号 S572 文献标志码A 文章编号 1007-7731（2026）06-0020-05

DOI号 10.16377/j.cnki.issn1007-7731.2026.06.006

Effects of reduced nitrogen fertilizer application on leaf SPAD value，agronomic traits and economic traits of flue-cured tobacco

Jia Lin1 Xu Chunping² Liu Chunkui²Fan Yuntao³Jia Hao²Xia Yang4 Wang Fushen²

（ 1 College of Agronomy， Henan Agricultural University， Zhengzhou 45oo46， China; （20 2 Collge of Tobacco Scienceand Engineering， Zhengzhou Universityof Light Industry，Zhengzhou 450oo1，China; ³China Tobacco Hebei Industrial Co.， Ltd.， Shijiazhuang O5Oo51， China; 4Yexian Branch，Pingdingshan Tobacco Company，Yexian ， China）

AbstractNitrogen is an essentialnutrient for the growth and development of tobacco.The level of nitrogen supply in the soil plays acrucial role inthe formation of tobaccoyieldand quality.In response to the problem that excessive nitrogenapplication intobaccoproduction may cause tobacco plants tobeovergrownandlate maturing，thereby affcting yieldandquality，thisarticlereviews theefectsof reduced nitrogen fertilizerappicationonphysiological characteristics，drymateraccumulation，gronomictraitsandeconomictraits，nordertoclarifytheregulatoryefectof nitrogen reduction on the growth andoutput of tobacco.Analysis showed that appropriate nitrogen reduction combined with the application of microbial agents，increasedorganic fertilizer applicationor biochar can all increase the SPAD value of tobacco leaves as wellasroot length，root surface area androo volume;reducing nitrogen fertilizer application by 20% or less，combined with corresponding agronomic measures，can promote the accumulation of dry matter in tobacco plants，enhanceagronomic traitssuchas stemcircumference，plant height，and the numberof effctive leaves， as well as increase yield，output value，and theproportion of top-grade tobacco.Thisarticle provides references for rational nitrogenreductionin flue-cured tobacco，optimizationofcultivationmanagement，andachieving highquality

and efficient production.

Keywordsreduced nitrogen fertilizer application; SPAD value;dry matter accumulation;agronomic traits; economic traits

氮素是烤烟生长必需的一种重要营养元素，土壤中氮素供应量直接影响烟叶的产量和质量。（剩余8524字）