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研究了不同氮肥用量对晒红烟生长发育、养分含量、经济性状及品质的影响。结果表明:在0~150 kg/hm2的施氮量范围内,随氮肥用量的增加,晒红烟株高增加,叶面积扩大,烟株中总N、P和K含量升高,调制后烟叶产量、产值和上中等烟比例提高,烟叶中总氮、烟碱和蛋白质含量增加,糖含量下降。在中等肥力条件下,施氮量为150kg/hm2时,烟叶的烟碱含量较为适宜,香气较足,刺激性较小。
The effects of different nitrogen rates on the growth, nutrient content, economic traits and quality of sun-cured tobacco were studied. The results showed that in the range of 0 ~ 150 kg / hm2 of nitrogen application, with the increase of nitrogen application rate, the plant height of sun-cured tobacco increased and the area of leaf increased. The content of total N, P and K in tobacco plants increased. Yield, output value and the proportion of upper secondary tobacco increased, total nitrogen, nicotine and protein content in tobacco increased, sugar content decreased. Under moderate fertility conditions, the nicotine content of tobacco leaves was more suitable when the amount of nitrogen application was 150 kg / hm2, with more aroma and less irritation.