不同有机-无机氮配比对烤烟生长及产量和质量的影响

Effects of Different Ratio of Organic Nitrogen to Inorganic Nitrogen on the Yield and Quality of Flue-cured Tobacco

通过大田试验,研究了不同有机、无机氮配比对烤烟新品种NC297产量和质量的影响。结果表明,T4处理(25%有机氮和75%无机氮)的养分释放速度符合烟株生长发育需肥规律,有利于烟株的生长发育;对提高烟叶的产值、上中等烟的比例有较明显的效果;有助于提高烟叶的外观质量和内在品质,使烟叶的化学成分更加协调。

Field experiment was conducted to study effects of different ratio of organic nitrogen to inorganic nitrogen on growth,leaf yield and quality of NC297 that introduced flue-cured tobacco variety from American newly.The results showed that,treatment T4（25% organic nitrogen and 75% of inorganic nitrogen） nutrient release rate not only in line with the growth of tobacco plants,developmental needs fertilizer law was conductive to growth and development of tobacco plants,but also to improve the output value of tobacco,on the proportion of secondary smoke effect was quite obvious;helped to improve the quality of leaf appearance and inner quality,so that the chemical composition of tobacco leaves was more coordinated.