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品种与施肥量对烤烟的生长发育及产质量都有很大影响。株高、节距和单株有效叶数受品种的影响较大 ;茎围、单株叶面积、叶面积指数 (LAI)、平均单叶重和产量受施肥量的影响较大 ;叶片大小、上等烟比例、均价及产值则受品种和施肥量的影响较大。施肥量增大 ,烟株生长发育加快 ,产量增加 ,但品质下降 ;3个品种的生长发育各有优势 ,产量相近 ,品质则G2 8的较差。南昌地区以K32 6和G80在中等施肥 (N 1 5 0kg/hm2 ,N∶P2 O5∶K2 O为 1∶1∶2 .5 )条件下产量较高、品质好、产值高
Variety and amount of fertilizer on the growth and yield and quality of flue-cured tobacco have a great impact. The plant height, the pitch and the number of effective leaves per plant were significantly affected by the varieties. The stem circumference, leaf area per plant, leaf area index (LAI), average single leaf weight and yield were greatly affected by the amount of fertilizer applied. Leaf size, The proportion of superior tobacco, the average price and the output value are greatly affected by the variety and the amount of fertilizer applied. The amount of fertilizer increased, the growth of tobacco plants accelerated, the yield increased, but the quality decreased. The growth and development of the three cultivars had their own advantages and the yields were similar with the worse quality of G2 8. Nanchang area to K32 6 and G80 medium fertilization (N 150kg / hm2, N: P2 O5: K2 O 1: 1: 2.5) under the conditions of higher yield, good quality, high output value