不同揭膜培土方式对烤烟生长及产质量的影响

Effect of Film Uncovering and Earth-up Method on Growth and Yield and Quality of Flue-cured Tobacco

研究了不同揭膜培土方式对烟株生长发育和品质的影响,结果表明:揭膜培土有利于烟株的正常成熟,在一定程度上改善烟株的农艺性状,促进烟株根系生长,对增加烟叶产量、产值和改善烟叶内在质量具有明显的效果;增加培土高度,可以改善烟株的农艺性状,促进烟株不定根生长,增加烟叶产量、产值,提高烟叶烟碱含量,提高烟叶品质。不同揭膜培土方式之间,以小培土加清沟大培土和清沟大培土高度15cm方式对促进烟株生长发育和提高烟叶品质效果最好;小培土对烟株的前期生长有促进作用,能有效增加烟株叶片数,促进叶片开面;小培土加清沟大培土方式对烟株促进生长发育的效果更为明显。

Effects of different film-uncovering and earth-up methods on growth and quality of flue-cured tobacco were studied. The results showed that film uncovering and earth-up were advantageous for flue-cured tobacco to normally maturate. And they might improve the agronomic traits to a certain extent ,promote the growth of roots,increase yield and output value, and improve internal quality of tobacco leaves. The agronomic traits could be improved, the growth of adventitious roots was promoted, the yield and output value were increased, nicotine content of tobacco leaves was increased,and the quality was improved by increased height of earth-up in tobacco fields. Little earth-up ＋ cleared sewer and big earth-up and earth up for cleared sewer and 15cm height of big one were better to promote tobacco growth and improve quality of tobacco leaves than the others among different film -uncovering and earth -up models in fields. Little earth -up could promote the former growth of tobacco, effectively increase numbers of tobacco leaves,and open face of tobacco leaves. Little earth-up ＋ cleared sewer and big earth-up were better to promote growth of tobacco.