烟草专用复合肥梯度用量对烤烟生长及产质量的影响

Effect of Tobacco-specific Compound Fertilizer Gradient Dosage on the Growth,Yield and Quality of Roasted Tobacco

通过大田试验,研究了烟草专用复合肥梯度用量对烤烟生长发育以及产量、品质的影响。结果表明,随着烟草专用复合肥用量的增加,烟株生长发育指标呈显著梯度增加趋势;烟叶正常的落黄成熟受复合肥施用量的影响,随着施用量的增大,落黄滞后;烟草专用复合肥大田施用量750 kg/hm^(2)时,烟株在株高、茎围、最大叶长、最大叶宽、最大叶面积、顶叶开片程度等方面表现较好,经济性状较好,可以作为确定梅县烟区烟草专用复合肥施用量的依据。

Through the field test,the effect of tobacco-specific compound fertilizer gradient dosage on the growth and development of roasted tobacco,as well as the yield and quality were studied.The results showed that with the increase of the amount of tobacco-specific compound fertilizer,the growth and development index of tobacco plant showed a significant trend of increasing gradient.The normal yellowing ripening of tobacco leaves was influenced by the application of compound fertilizer,and with the increase of application,yellowing lags behind.Under tobacco-specific compound fertilizer field application amount of 750 kg/hm^(2),plant height,stem circumference,maximum leaf length,maximum leaf width,maximum leaf area,top leaf opening degree,etc.showed a good performance,the economic character was better,could be used as a basis for determining the amount of tobacco-specific compound fertilizer application in Mei County tobacco area.