福建农业科技2026，Vol.57Issue(7)：50-56,7.DOI:10.13651/j.cnki.fjnykj.2026.07.007
不同氮磷钾配比对烤烟农艺性状及地老虎发生情况的影响
Effects of Different Ratios of Nitrogen,Phosphorus and Potassium on the Agronomic Traits of Flue-cured Tobacco and the Occurrence of Cutworms
摘要
Abstract
The aim of this study is to explore the effects of different application rates of nitrogen,phosphorus and potassium fertilizers on the agronomic traits of flue-cured tobacco and the occurrence of cutworms,and to screen out the optimal fertilization scheme that takes into account the excellent agronomic traits of tobacco plants and effectively controls the harm of cutworm,so as to provide a reference for scientific fertilization in plateau tobacco areas.In 2025,a field experiment was carried out in Ninglang County(2 161 m above sea level)of Lijiang City by taking Yunyan 99 as the tested variety and using the quadratic orthogonal regression design of three factors and five levels of nitrogen,phosphorus and potassium.A total of 17 treatments and 3 replications were set up for the determination.The plant height,leaf number,maximum leaf length,maximum leaf width and occurrence index of cutworm were determined.The quadratic polynomial regression model was established and the optimal fertilization scheme was screened by 95%confidence interval superposition method.The results showed that different fertilization treatments had significant effects on all measured indicators(P＜0.05).T9 treatment had the highest plant height(119.87 cm),T11 treatment had the largest number of leaves(18 leaves),T6 treatment achieved the maximum leaf length(65.43 cm)and leaf width(35.17 cm),while T5 treatment demonstrated the lowest occurrence index of cutworm(1.28).The regression model had the correlation coefficients(R)ranging from 0.835 0 to 0.969 3,indicating high fitting accuracy.The plant height was mainly affected by nitrogen fertilizer and phosphorus fertilizer.The number of leaves had the strongest response to potassium fertilizer,and the maximum leaf length and leaf width needed the coordination of nitrogen,phosphorus and potassium.The occurrence index of cutworm was most closely related to the amount of nitrogen fertilizer.Based on the superposition analysis of 95%confidence interval of each index of flue-cured tobacco,the optimal fertilization scheme balancing the superior agronomic traits of tobacco plants and the effective control of cutworm damage was determined to be 96.75 kg·hm-2of nitrogen fertilizer,84 kg·hm-2 of phosphorus fertilizer,and 157.5 kg·hm-2 of potassium fertilizer.关键词
烟草/肥料配比/二次正交回归设计/农艺性状/地老虎Key words
Tobacco/Fertilizer ratio/Quadratic regression orthogonal design/Agronomic traits/Cutworm分类
农业科技引用本文复制引用
刘彦平,罗应坤,王妍妮,汤永玉,徐云..不同氮磷钾配比对烤烟农艺性状及地老虎发生情况的影响[J].福建农业科技,2026,57(7):50-56,7.基金项目
云南省烟草公司丽江市公司一般性科技项目(2024530700242003). （2024530700242003）
