【摘要】 为筛选高效拌根剂配比，探究其对滇黄精（Polygonatum kingianum Collett&Hemsl.）生长、品质及土壤理化性质的影响，以两年生滇黄精种苗为材料，将9种杀菌剂复配为4种拌根处理（A1至A4）及对照（CK）。结果表明，与CK相比，拌根剂处理显著提高了滇黄精出苗率、存苗率及抗病能力。其中A1处理（四霉素80%+福美双5%+克菌丹15%）效果最优，出苗率和存苗率分别为95.75%、95.25%,8月与9月根腐病发病率（1.25%、4.75%）显著低于CK(34.00%、49.25%)；株高（114.58 cm）和产量（4 675 kg/hm~2）较CK分别提高15.57%和168%；多糖、总黄酮及总皂苷含量较CK分别提升16.30%、32.46%和15.11%。此外，拌根剂提高了土壤pH和碱解氮含量，但导致土壤有机质含量下降。更多还原

【Abstract】 To screen high-efficiency root dressing agent formulations and investigate their effects on the growth,quality,and soil physicochemical properties of Polygonatum kingianum Collett & Hemsl.,two-year-old seedlings of Polygonatum kingianum were used as experimental materials. Nine fungicides were combined into four root dressing treatments(A1 to A4)and a control(CK). The results showed that,compared with CK,the root dressing treatments significantly improved the emergence rate,seedling survival rate,and disease resistance of Polygonatum kingianum. Among them,treatment A1(80% tetramycin + 5% thiram + 15% captan)performed the best,with emergence and seedling survival rates of 95.75% and 95.25%,respectively. The incidence of root rot in August and September(1.25%,4.75%)was significantly lower than that of CK(34.00%,49.25%). Plant height(114.58 cm)and yield(4 675 kg/hm~2)increased by 15.57% and 168%,respectively,compared to CK. The contents of polysaccharides,total flavonoids,and total saponins increased by 16.30%,32.46%,and 15.11%,respectively,compared to CK. Additionally,the root dressing agent increased soil pH and alkaline hydrolyzable nitrogen content but led to a decrease in soil organic matter content.更多还原