Comparative Analysis of Agronomic Characters and Saponins Amount of Ginseng in Four Main Agricultural Areas in Yanbian Prefecture

The farmland ginseng cultivation in Yanbian Prefecture is the main direction in the future. This paper investigates and studies the two main cities and counties in Yanbian Prefecture. The results show that there is no significant difference in root weight and root diameter between the two-year-old farmland, the three-year-old rooting heavy Wang-qing experimental site is significantly higher than other experimental sites, and the three-year-rooting-rough-dunning experimental site is significantly higher than the other three experimental sites. Position. The correlation analysis of the two-year-old soil indicators with root traits and total saponin content showed that total saponin content only showed a significant positive correlation with total phosphorus content; available phosphorus showed a significant positive correlation with root weight and root diameter; root diameter had a significant positive correlation with electrical conductivity. The content of total saponins and total phosphorus showed a highly significant positive correlation, and a highly significant positive correlation with total nitrogen; root weight and pH showed a highly significant positive correlation; root diameter and available phosphorus showed a highly significant positive correlation, and nitrate nitrogen showed a significant positive correlation. The total saponins content of ginseng in two-year-old farmland showed a significant negative correlation with root weight and root diameter, while the total saponins content in three-year-old farmland showed a very significant negative correlation with root diameter, but no significant correlation with other traits