有机肥结合农艺措施对烤烟生长和产质量的影响

Effects of organic fertilizers combined with agronomic measures on growth,yield and quality of flue-cured tobacco

采用田间试验方法,研究有机肥配施、稻草覆盖、钾肥追肥方法对烟叶质量(总糖含量、还原糖含量、氯含量、烟碱含量)、烤烟产量、烟株农艺性状(株高、叶片数、最大叶长、最大叶宽)的影响。结果表明:配施油菜饼肥和农家肥可以改善烟叶品质并适当提高烟叶产量,前者对提高烤烟优质烟比例的效果更明显;钾肥适当后施可以显著提高烟叶产量,稻草覆盖代替地膜覆盖对烤烟前期生长、烟叶产量和品质有不良影响。

A field experiment was carried out to investigate the quality （the contents of total sugar, reducing sugar, chlorine and nicotine）, the total output,the agronomic traits （plant height, leaf number, maximum leaf length and width） of flue-cured tobacco affected by combined application of organic fertilizers, straw mulching, top dressing of potassium fertil- izer. The results showed that the cake manure of rape combined with farmyard manure could improve the quality and the yield of tobacco leaves, but the earlier had more obvious effect on increasing the rate of tobacco with good quality. The proper top dressing of potassium fertilizer at later stage could increase the yield of tobacco leaves obviously. The straw mulching instead of plastic mulching had harmful effects on the growth of tobacco at early stage, and the quality and yield of tobacco leaves.