生物菌肥对盆栽烟草品质的影响

Effects of biological fertilizer on potted tobacco quality

为克服土壤退化,提高烟叶品质,利用土壤有益微生物菌群与有机物发酵技术,配制成两种生物菌肥,通过盆栽试验,研究两种菌肥对烟草品质和植烟土壤的影响。结果显示,施用烟草专用复合肥+菌肥A的组合施肥效果最佳,该施肥处理在整个烟草生育期内叶面积大,硝酸还原酶活性高,在成熟期明显降低了烟叶中蛋白质的含量,改善了烟叶品质。菌肥A施用总体效果优于菌肥B,菌肥A对烟草团棵期和成熟期叶部干物质积累具有促进作用。两种菌肥都能提高烟草生育后期游离脯氨酸的积累、成熟期色素、以及根、茎、叶中钾含量。

To overcome the soil degradation and improve the quality of tobacco leaves,two kinds of biological fertilizer were compounded by using organic matter and beneficial soil microorganisms fermentation technology. Pot experiments were conducted to test the fertilizer effects on the planting tobacco soils and tobacco quality. The results showed that the application of compound fertilizer special for tobacco combined with biological fertilizer A displayed the best effect on tobacco quality. The quality of tobacco leaves were improved with leaf width,high nitrate reductase activity in the growth period,and the reduction of protein contents significantly in the tobacco mature period. The application effect of Fertilizer A was better than that of fertilizer B. Fertilizer A played a significant role in promoting the dry matter accumulation of tobacco leaves from rosette stage to mature. Two kinds of biological fertilizer increased the accumulation of free proline in the late growth stage,and improved the pigment in mature stage,as well as the potassium contents of the root,stem and leaf potassium content.