烟草轻简高效栽培技术研究——Ⅰ.烟草化控育苗研究及其节工降本效果分析

Study on Simplified and High Efficiency Tobacco Cultivation Technology Ⅰ.Seedling Production with Chemical Regulation and Cost Saving

摘要: 为了降低育苗成本、培育无病壮苗，采用了苗床喷施对比和盆栽试验的方法，研究了三十烷醇和多效唑的复配组合对培育烟草壮苗的影响。结果表明，采用化控措施培育出的烟苗其农艺性状与生理指标均符合优质壮苗的标准，以25%三十烷醇＋75%多效唑的处理组合育出的烟苗综合素质最好。通过化控能减少剪叶次数2次，节省了30%的农药，节本增效93.6元/hm2以上，此为烟草轻简化育苗提供了依据。

Abstract: Saving cost and raising healthy seedlings were the purpose of this research. Spraying chemical regulator in nursery bed and pot experiment, application effects of triacontanol and chlormequat were studied in tobacco seedlings. The results showed that both the agronomic characters and physiological indices of the seedlings met the standards of healthy tobacco seedlings. The comprehensive characters of tobacco seedlings were the best while the seedlings were raised with 25% triacontanol and 75% chlormequat. The frequency of leaf-cutting was two-time less by chemical regulation seedling. It saved pesticide application by 30% and increase more than 93.6 yuan/ha. The study provided the basis for simplified and labor saving seedling production of tobacco.