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结合南方稻田烟区实际,以云烟97品种为材料,研究了上部叶成熟期间植烟土壤保持连续灌溉对不同成熟度鲜烟叶素质及烤后外观质量的影响。结果表明,烟田经连续灌溉处理后,上部鲜烟叶干重显著降低,叶长及鲜重随成熟度增加而下降的程度减小,叶绿素含量在进入成熟中后期后明显下降。烤后外观质量、均价和上等烟比例均优于自然排灌处理的上部烟叶,成熟度及发育状况得到改善,叶面疏松度明显提高,油分增多,色度变浓,色均匀度有所增加。
Combining with the actual rice field in southern China, Yunyan 97 was used as material to study the effects of continuous irrigation of tobacco planting soil on the qualities and appearance quality of fresh tobacco leaves after maturing upper leaves. The results showed that after continuous irrigation treatment, the dry weight of upper fresh tobacco leaves decreased significantly, while the decrease of leaf length and fresh weight decreased with the increase of maturity, and the chlorophyll content decreased obviously after the middle and late maturity. The appearance quality, the average price and the finest proportion of tobacco after roasting were superior to those of the upper tobacco treated by natural irrigation and drainage, the maturity and development status were improved, the leaf looseness was obviously increased, the oil content increased, the chroma became thicker and the color evenness was increase.