有机肥与无机肥配施及灌水对烤烟养分含量及产量、品质的影响

Effect of irrigation and combining application of organic-mineral fertilizers on content of nutrients and yield and quality of flue-cured tobacco

采用田间试验研究了有机肥与无机肥配施及灌水对旱区烤烟(NicotianatabacumL )养分含量和烟叶产量品质的影响.结果表明,随有机肥用量增大,烟株体内Mg,Mn,Cu,Zn含量显著增加,N,Fe,B含量明显降低.单施有机肥对烟叶产量影响不大,但会显著降低上等烟比例和总氮、烟碱含量,提高还原糖含量.灌水可以显著提高烤后烟叶Fe,Zn含量和烟叶产量、上等烟比例,以有机肥与无机肥质量比1∶1并结合灌水,烟叶的产量和质量性状较为理想.

Field experiments were conducted to study the effects of irrigation and combining application of organicmineral fertilizers on concentration of nutrients and yield and quality of fluecured tobacco (Nicotiana tabacum L) in dry landThe results showed that with the increasing of organic fertilizer, the content of Mg, Mn, Cu, Zn in tobacco plant increased significantly, but the content of N, Fe and B decreased obviously There was not significant difference in yield when tobacco fertilized with organic nitrogen compared with mineral nitrogen, but the ratio of high quality leaf and the content of total nitrogen and nicotine in cured leaves decreased remarkably, the content of reducing sugar increased evidentlyIt was also observed that irrigation could significantly increase the content of Fe and Zn in the cured leaves, and improve yield and the ratio of superior leaf Higher yield and quality of tobacco was produced when the proportion of organic nitrogen and mineral nitrogen was 1∶1,with the field properly irrigated 