【摘要】 土壤施用添加剂研究结果表明,土壤的理化性状发生了明显的改变。土壤容重由0.812 g/cm~3降到0.715g/cm~3,孔隙度由69.36％提高到73.03％,增强了土壤的通透性,促进了西洋参的生长发育,提高了保苗率、结果率,平均鲜根重提高53.8％,总皂甙含量提高近0.5～1％。更多还原

【Abstract】 This paper suggests that the physical and chemical characteristics of soil in american ginseng field were greatly improved after utilization of supplement on soil. Compared with the contrast, the soil gravity ratio decreased from 0.812 g/cm3 to 0.715 g/cm3,while the soil porosity increased from 69.36% to 73.03% .These improvements are benefit for the growth of Panax quinquefolium. Biological observations show that the fresh weight of ginseng root enhanced 53.8%, and the content of total saponins in root enhanced 0.5% - 1% (get to 8.28%).更多还原