种植密度和留叶数对烤烟KRK26产量和质量的影响

摘要

研究了种植密度和留叶数对烤烟品种KRK26产量和质量的影响.结果表明:种植密度为15150株/hm2(株行距为55 cm×120 cm)的处理烟叶分层落黄好,产值和产量比其它处理高;留叶数为22～24片的处理烟株高、茎围大、原烟的外观质量优、产量和产值高.%The effect of different planting densities and the number of remained leaves on the yield and quality of flue - cured tobacco variety KRK26 under the condition of using pure nitrogen 90 kg/hm2 was studied in this paper. The results showed that the mature tobacco leaves became yellow better, and the production value and yield were higher in the treatment of planting 15150 plants/hm2 (planting space 55 cm ×120 cm). It was the best practice to keep 22 ~24 leaves for getting best plant height, stem girth, appearance quality of the original tobacco, production value, and yield.