作物研究2025，Vol.39Issue(5)：437-447,11.
种植密度和留叶数对烤烟生长与产质量的影响
Effects of Planting Density and Leaf Retention on Growth,Yield,and Quality of Flue-Cured Tobacco
摘要
Abstract
To investigate the effects of planting density and leaf retention number on the flue-cured tobacco variety Yunyan 87,five treatments were established:CK(density:16 600 plants/hm2,leaves:18),M1Y1(density:20 800 plants/hm2,leaves:14),M1Y2(density:20 800 plants/hm2,leaves:12),M2Y3(density:27 700 plants/hm2,leaves:11),and M2Y4(density:27 700 plants/hm2,leaves:9).The study aimed to optimize the yield structure by evaluating its impact on the growth,yield,and quality of tobacco in Lanshan area,and further applied the fuzzy comprehensive evaluation method to assess tobacco leaf quality,thereby identifying the optimal yield configuration.The results showed that increased planting density significantly influenced agronomic traits,manifesting as increased plant height,reduced stem circumference,and decreased maximum leaf area.Compared to CK,the M1Y1 treatment increased the leaf area index by 6.62%,decreased canopy light transmittance by 3.37%,optimized canopy structure,and significantly enhanced leaf net photosynthetic rate and transpiration rate.Economic trait analysis revealed that the M1Y1 treatment achieved the highest yield and output value,with significant increases of 11.52%and 21.19%,respectively,over CK.In terms of leaf quality,moderate density increase with leaf reduction(M1Y1,M1Y2)improved the Physical Property Index(PPI)and Chemical Component Utilization Index(CCUI)of middle and lower leaves.Specifically,the M1Y1 treatment significantly increased the CCUI of middle and lower leaves by 11.68%and 57.66%,respectively.Comprehensive quality analysis indicated that the Comprehensive Quality Evaluation Index of Quality Indicators for M1Y2 and M1Y1 treatments increased significantly by 4.77%and 3.45%,respectively,compared to CK.In conclusion,for Yunyan 87 in the Lanshan area,the treatment with a planting density of 20 800 plants/hm2 and 14 leaves resulted in a shorter growth period,enhanced photosynthetic performance,improved comprehensive economic traits,and higher leaf quality,achieving the production goals of high yield,superior quality,and high efficiency.关键词
烤烟/种植密度/留叶数/光合特性/产量/质量Key words
flue-cured tobacco/planting density/number of leaves retained/photosynthetic characteristics/yield/quality分类
农业科技引用本文复制引用
马娅,韩永亮,李强,刘远上,周富强,何梦洁,王冬晴,李波,张端智,周鹏涛,马戎..种植密度和留叶数对烤烟生长与产质量的影响[J].作物研究,2025,39(5):437-447,11.基金项目
河北中烟工业有限责任公司科技项目(HBZY2024A013). （HBZY2024A013）
