绿肥对烤烟产质量影响的研究

Study on Effect of Green Manure on Yield and Quality of Tobacco

通过油菜(十字花科)和黑麦草(禾本科)两种绿肥品种的肥料用量及后作烟田不同施肥水平的小区试验,结果表明,绿肥翻压后对烤烟前期生长存在一定影响,但中后期烤烟长势较好,叶片开片好,上等烟比例得到提高,烟叶化学成分协调性有所改善。烤烟田应适当减少肥料用量,有利于烟叶品质提高,但降低过多不利于烟叶产量、产值稳定。与油菜相比,黑麦适宜性强、产量高,对烤烟开片和品质提高有利,但黑麦草翻压难这一关键技术有待解决。

The dosage of rape （crucifera） and ryegrass （Gramineae）, and different manuring levels in after crop tobacco field were studied. The results indicated that green manure application had a certain influence on early growth of fluecured tobacco, but the growth vigor was strong in the middle and late growth with leaf extended. The proportion of high class leaves and chemical components harmony of leaves were improved. Manure dosage in flue-cured tobacco field should be reduced properly to benefit tobacco quality, but over-reduction would be disadvantageous to stability of yield and quality of tobacco. Adaptability of ryegrass was better and the yield was higher than those of rape, which was advantageous to the development and quality of flue-cure tobacco but the key technique of ryegrass application was still to be solved.