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作者采取砂、炉渣为基质,定期分别喷洒三种不同的营养液BD,KO和Knop,进行甜叶菊(Stevia rebaudialia Bertoni)无土育苗,并以黑龙江省海林农场常用的育苗方法作对照。结果表明:在以砂为基质培养中喷施Knop营养液育出的苗肥壮,根系发育好,并有明显的纺锤状块根;病害轻,无虫害和草害;在根长、根鲜重、茎高、冠鲜重及叶片数等方面显著优于对照,也显著优于其它处理,是一种值得推广的育苗方法。
The authors used sand and slag as the substrate. Three different nutrient solutions, BD, KO and Knop, were sprayed on a regular basis. Stevia rebaudiana (Bertoni) soilless seedlings were sprayed on a regular basis. The results showed that the nursery stalks were fertilized and sprouted with Knop nutrient solution. The root system developed well with obvious spindle-shaped roots. The plant diseases were light, no insect and grass damage. The root length, fresh root weight, Stem height, fresh weight of the crown and the number of leaves were significantly better than the control, but also significantly better than the other treatments, is a worth promoting the breeding method.